MicroController 51 Projects Data Logging Control Interface Simulation

Keypad 7-Segment LED interface with Microcontroller 8051

2014-03-14T20:45:00.001+05:00

Keypad 7-Segment LED interface with Microcontroller 8051

Interface description and Code Wiring methods:

1. the matrix key Pad having 16 keys is interfaced with microcontroller 8051 with a 8PIN data cable, the port P1 of MCU At89c51is used for this purpose.

2. The LED seven segment display common anode type blue color is connected to port P0 of microcontroller 8051.
3. The number pressed on the keypad is displayed on 7-segment display.

the program scan button and display the number accordingly.
respectively 16 keyboard display show the digital 0123456789ABCD
what key is pressed on the keyboard matrix to determine , "line scanning method." is used to scan which key is pressed. Line scanning method, also known as progressive (or column) scan query method, is one of the most commonly used keys recognition.

Keypad scanning program 8051 seven segment display

P1 port 8051 is used as a keyboard I / O port,
The PINs P1.0 to Pin P1.3 are connected to columns while Port PIns P1.3 to Port PIn P1.7 are connected to rows of the keypads. The columns are multiplexed while rows are the input for scanning which keys is pressed while multiplexing of columns. Four rows and four columns wire line formed 16 intersection.
1 detects whether this key is pressed. Methods to detect the P1.4-P1.7 output all "0", reads the status of P1.0-P1.3, P1.0-P1.3 as if all "1", no key is closed, otherwise there button closure.
When a key is detected, the delay time to do testing to determine the next step.
if the key is pressed, which one should identify the key closure.
Read P1.0-P1.3 output in each set of rows, if the whole is "1", then "0" line is no bond closed, otherwise the key is closed. Whereby closing key row and column values, and can be calculated or lookup table to convert the row and column values close bond into key defined.
4, in order to ensure that each key only once closed a CPU for processing, jitter must be removed when the key is released.

Assembly language program Keypad scanning program 8051 seven segment display

Assembly Language Reference Program:

ORG 0000h
ajmp main
ORG 0080h
main:
mov dptr, # tab; the header into DPTR
lcall Key; calling keyboard scanner
movc a, @ a + dptr; lookup key into the ACC after
mov P0, a; would Acc value into the P0 port
CLR P2.1; open display
ljmp main; returned repeatedly to cycle
KEY: LCALL KS; detect key subroutine call
JNZ K1; key is pressed to continue
LCALL DELAY2; without key debounce delay by calling
AJMP KEY; returns continue to test the key
K1: LCALL DELAY2
LCALL DELAY2; delay key is pressed to shake
LCALL KS; then call detection key procedures
JNZ K2; recognized the pressing Next
AJMP KEY; without pressing the Return key to continue to detect
K2 : MOV R2, # 0EFH; would sweep into the R2 value of the temporary
MOV R4, # 00H; R4 first column values into a temporary
K3: MOV P1, R2; the value of R2 into the P1 port
L6: JB P1 .0, L1; P1.0 = 1 jump to L1
MOV A, # 00H; into the first row of the value of ACC
AJMP LK; jump to the key handler
L1: JB P1.1, L2; P1.1 Jump to L2 is equal to 1
MOV A, # 04H; the second row into the row values ACC
AJMP LK; jump to the key management program key processing
L2: JB P1.2, L3; P1.2 = 1 Jump to L3
MOV A, # 08H; the row values into the third row ACC
AJMP LK; jump to the key handler
L3: JB P1.3, NEXT; P1.3 = 1 Jump to NEXT at the
MOV A, # 0cH; fourth row of the row values into the ACC
LK: ADD A, R4; key row and column values of the added value into A
PUSH ACC; the A stack of values into a temporary
K4 : LCALL DELAY2; calls to delay jitter program
LCALL KS; call button detection program
JNZ K4; continue to return the keys did not release detection
POP ACC; the value of the stack into the ACC
RET
NEXT:
INC. R4; the column value plus one
MOV A , R2; the value of R2 into A
JNB ACC.7, KEY; scanned to perform at the next scan KEY
RL A; scanning unfinished value in the A right one scan to the next column
MOV R2, A; The R2 value of ACC into temporary
AJMP K3; Jump to K3 continues
KS: MOV P1, # 0FH; P1 port will be four positions lower nibble value 0 1
MOV A, P1; Reading the P1 port
XRL A, # 0FH ; the A and A values in the value of different or
RET; subroutine return
DELAY2:; 40ms delay to shake subroutine
MOV R5, # 08H
L7: MOV R6, # 0FAH
L8: DJNZ R6, L8
DJNZ R5, L7
RET
tab:
dB 28h, 34h, 28h, 34h, 0A9H, 60H, 20h, 7ah, 20h, 21h, 61h, 74h, 30h, 62h, 0A2H, 7eh
end

Microcontroller51 MCU 8051 LED interface

2014-03-04T20:30:00.001+05:00

Eight LED interface with MCU 8051.

Microcontroller51 MCu 8051 LED interface

The assembly lanuage program for the interface of eight LEDs with Microcntroller 8051 is as under:

org 0000h; began the code here
ajmp loop
ORG 0080h; 00-30 to 0030h at avoiding sensitive Address of the memory are not being used
loop: main loop of the program starts here
mov p1, # 0ffh; turned off all the lights (LEDs) the logic zero 0 is required to glow the light (LED)
clr p1.0; Flash lights P0.0....> this instruction witl turns ON the LED attached at PIN 0 of port 0
lcall delay; delay period of time?
clr p1.1; Flash lights P0.1....> this instruction will turns ON the LED attached at PIN 1 of port 0
lcall delay ; some delay during this port status will be same i.e logic zero on above pin
clr P1.2; Flash lights P0.2 ....> this instruction will turns ON the LED attached at PIN 2 of port 0
lcall delay
clr P1.3; Flash lights P0.3....> this instruction will turns ON the LED attached at PIN 3 of port 0
lcall delay
clr p1.4; Flash lights p0.4....> this instruction will turns ON the LED attached at PIN 4 of port 0
lcall delay
clr P1.5; Flash lights P0.5....> this instruction will turns ON the LED attached at PIN 5 of port 0
lcall delay
clr P1.6; Flash lights P0.6....> this instruction will turns ON the LED attached at PIN 6 of port 0
lcall delay
clr P1.7; Flash lights P0.7....> this instruction will turns ON the LED attached at PIN 7 of port 0
lcall delay
AJMP LOOP; into the loop at the beginning again Run
delay: delay loop
mov r5, # 20; delay.
D1: mov R6, # 40
D2: mov r7, # 248
DJNZ r7, $
DJNZ R6, D2
DJNZ r5, D1
ret
End

end of assembly lanuage program to turn ON and OFF the LEDs one by One .

assembly language code for LED interface with 8051

c language reference program:
# Include reg51 . h / / header file
# define uchar unsigned char / / macro definition for easy programming
# define uint unsigned int
# define LED P1 / / macro definition, the P1 port is defined as LED
UCHAR led_value [] = { 0x7f, 0xbf, 0xdf, 0xef, 0xf7, 0xfb, 0xfd, 0xfe, 0x00}; / / define an array of memory put Marquee data
uchar * p = led_value; / / define pointer to an array of marquees first address
void delay ( ) / / delay function, and Marquee beat frequency about
{
UCHAR ii, JJ;
for (ii = 0; ii <200 br="" ii="">for (JJ = 0; JJ <200 br="" jj="">}
void run_led () / / Marquee run the function
{
while (* P = 0x00!)
{
LED = * P; / / assign the array data out of the P1 port
p + +; / / remove a pre-data
delay (); / / delay
}
P = led_value ;
}
char code SST516 [3] _at_ 0x003B; / / emulator retains
main () / / main function
{
while (1)
run_led (); / / the power that runs Marquee program
}

AT Commands for Sending and Reading SMS through GSM Modem using PC

2014-03-01T13:55:00.001+05:00

AT Commands for Sending and Reading SMS through GSM Modem using PC

The “AT commands” are actually commands or instructions which are used to control or communicate with a modem for several purposes like sending & receiving any specific SMS or command to call on a particular number etc. In general the word “ AT” is used in each command and it is the abbreviation of ATtention. Therefore every command line starts with "AT" or "at". This is reason that the GSM modem commands are called AT commands. It should be noted that the starting "AT" informs the GSM modem about the start of a command line or an instruction has been received for a particular work/ or task to perform. It is actually not a part of the AT command name.

For example, if we look on an AT-command say ATD , in this at-command the “D” is the actual AT command name in ATD, and +CMGS is the actual AT command name in AT+CMGS.

Method to send a SMS through GSM modem:

There are many methods available and used for the sending and receiving the SMS using GSM modem,. This includes use of microcontroller only or use of PC only or use of both. It depends upon the application purpose also. In general, there are two ways to send SMS messages from a computer / PC to a mobile phone:

Connect a mobile phone or GSM/GPRS modem to a computer / PC. Then use the computer / PC and AT commands to instruct the mobile phone or GSM/GPRS modem to send SMS messages.
Connect the computer / PC to the SMS center (SMSC) or SMS gateway of a wireless carrier or SMS service provider. Then send SMS messages using a protocol / interface supported by the SMSC or SMS gateway.

There are two types of AT-commands:

Basic commands are AT commands that do not start with a "+". For example, D (Dial), A (Answer), H (Hook control), and O (Return to online data state) are the basic commands.
Extended commands are AT commands that start with a "+". All GSM AT commands are extended commands. For example, +CMGS (Send SMS message), +CMGL (List SMS messages), and +CMGR (Read SMS messages) are extended commands.

Some important At-commands and task these perform:

AT-command ……> AT+CGMI : Task performed by AT-command: It is used to get some fundamental information about the mobile phone or GSM/GPRS modem.

For example, 1. AT+CGMI is used to know the name of the manufacturer

2. AT+CGMM is used to know the model number of mobile phone or GSM/GPRS modem,

3. AT+CGSN is used to know the IMEI number (International Mobile Equipment Identity) which is unique for any mobile phone or GSM modem,

4. AT+CGMR is used for acquiring information about the software version.

AT-command ……> AT+CNUM: Task performed by AT-command: It is used to get some basic information about the subscriber of the network used in mobile phone.

For example, 1. AT+CIMI is used to get the MSISDN (AT+CNUM) and IMSI number (International Mobile Subscriber Identity).

AT-command ……> AT+CPAS: Task performed by AT-command: It is used to get some the current status of the mobile phone or GSM/GPRS modem.

For example, 1. AT+CPAS is used to get the mobile phone current activity status

2. AT+CREG is used to get mobile network registration status

3. AT+CSQ is used to know the level of radio signal strength of network used for mobile phone or gsm modem.

4. AT+CBC is used to know about the battery charge level, and battery charging status of the mobile phone.

AT-command ……> ATD or ATA : Task performed by AT-command: It is used to establish a data connection or voice connection to a remote modem.
AT-command ……> AT+F: Task performed by AT-command: It is used to Send and receive fax using GSM modem.
AT-command ……> AT+CMGS: Task performed by AT-command: It is used to Send, read, delete, write etc sms via mobile phone or GSM modem.

For example: 1. AT+CMGS, AT+CMSS , It is used to send message using mobile phone or GSM modem.

2. AT+CMGR, AT+CMGL, it is used to read SMS received in mobile phone or GSM modem.

3. AT+CMGW it is used to write a SMS,

4. AT+CMGD it is used to delete SMS from mobile or GSM memory.

5. AT+CNMI It is used to obtain notifications of newly received SMS messages.

AT-command ……> AT+CPBR: Task performed by AT-command: It is used to Read, write, search phone book entries or contact list saved in mobile phone or GSM modem.
For example 1. AT+CPBR it is used to read any specific entry in contact list or phone book data entries.

2. AT+CPBW it is used to write an entry in the phonebook of mobile,

3. AT+CPBF it is used to search phonebook entries in the mobile phone or GSM modem.

AT-command ……> AT+CLCK: Task performed by AT-command: It is used to Perform security-related tasks.

For example: 1. AT+CLCK it is used for opening or closing facility locks ,checking whether a facility is locked

· AT+CPWD it is used for the changing passwords on mobile phone.

AT-command ……> AT+CMEE: Task performed by AT-command: It is used to Control the presentation of result codes / error messages of AT commands.

For example, 1. AT+CMEE it can be used to enable certain error messages, and whether error messages should be displayed in numeric format or verbose format (AT+CMEE=1 or AT+CMEE=2).

AT-command ……> AT+CBST: Task performed by AT-command: It is used to Get or change the configurations of the mobile phone or GSM/GPRS modem.

For example, 1. AT+COPS it can change the GSM network,

2. AT+CBST it can be used to change the bearer service type,

3. AT+CRLP it can be used to determine the radio link protocol parameters,

4. AT+CSCA it is used to know the SMS center address ,

5. AT+CPMS it is used to control the storage of SMS messages.

AT-command ……> AT+CRES: Task performed by AT-command: It is used to Save and restore configurations of the mobile phone or GSM/GPRS modem.

For example, 1. AT+CSAS it is used to save the mobile phone or GSM modem configurations.

2. AT+CRES it is used to restore settings related to SMS messaging such as the SMS center address.

GSM Modem interface with PC for SMS communication Setup of port for serial transmission between PC And GSM Mobile Phone

GSM Modem interface with PC for SMS communication code for send SMS from PC and GSm Modem

Code for reading SMS from GSM modem

For further information write in comments section:

to download code check the links provided on the blog if you got any problem write in comments section .

Wi-Fi Based Home Automation System

2014-02-25T15:44:00.000+05:00

Wi-Fi Based Home Automation System:

This project describes the topics as given below:
1. Home appliance control
2. Wi-Fi automation
3. Microcontroller based Home appliance control and monitoring
4. Microcontroller 8051 family based home automation system
5. Interface of Wifi module with Microcontroller

This microcntroller project presents a design and prototype implementation of a home automation system which is consist of WiFi technology along with a network infrastructure connecting its parts. This is based on 8051 family of microcntrollers and the as a whole the system consists of two main components;
1. server or web server,
2. Hardware and software for the implementation of Wifi based automation of home control and monitoring system.
The first part is related to management which presents system core that manages, controls, and monitors users’ home.

The devices can be switched ON/OFF using a Personal Computer (PC) through Wi-Fi transimiter and receiver and MCU.
Short for "Wireless Fidelity." Wi-Fi refers to wireless networking technology that allows computers and other devices to communicate over a wireless signal. Wi-Fi (Short for Wireless Fidelity) is a wireless technology that uses radio frequency to transmit data through the air. Wi-Fi has initial speeds of 1mbps to 2mbps. Wi-Fi transmits data in the frequency band of 2.4 GHz. It implements the concept of frequency division multiplexing technology. Range of Wi-Fi technology is 40-300 feet. WiFi is a popular term that is used referring to wireless communications between computers and other computer related devices.

Users and system administrator can locally (LAN) or remotely (internet) manage and control system code. Second part is hardware interface module, which provides appropriate interface to sensors and actuator of home automation system.

The controlling device for the automation in the project is a Microcontroller. The data sent from PC over Wi-Fi will be received by Wi-Fi module connected to Microcontroller. Microcontroller reads the data and decides the switching action of electrical devices connected to it through Relays and Triac switches. The Microcontroller is programmed used embedded ‘C’ language.

The main components of Wi-Fi Based Home Automation System are:
1. Regulated Power Supply. (required to convert 220AC to +5V DC)
2. Microcontroller. (At89c51)
3. LCD with driver. (twolines and 20 characters long LCD)
4. Computer.
5. Crystal Oscillator.
6. LED indicators.
7. Relay and Triac.
8. Wi-Fi module

Tools required to develop this project:
Software’s used:
1. Keil C-51 compiler for Embedded C programming. Required to convert the c-code file into Hex file formate which is actually burned into microcntroller for running of code.
2. Express SCH for Circuit design. If the PCB is required to designe.
3. Proteus ISIS for hardware simulation and testing of software without actual soldering of all components.

Programmer: Required to burn hex file into the microcntroller.
if we used a microcntroller which support in circuit programming then following programmer can be used:
In-Circuit-Programmer-8051
But for this we have to use s-seriese of atmel microcntrollers like at89s51 ot at89s52 etc.
otherwise universal programmer or any conevtianal customize programmer can be used.
Power supply section of the Wi-Fi based Wireless advanced Home Automation system:

coomon keyword to approach this web-post are as under:
a zigbee based home automation system,bluetooth communication,sms based home automation system,wifi communication,wifi communication c++,bluetooth based home automation system,wireless communication,
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Wireless sensor based Vehicle central Lock Control System using Microcontroller

2014-02-19T20:02:00.003+05:00

Wireless sensor based Vehicle central Lock Control System using Microcontroller

This project is about car security system and central locking system using microcontroller and wireless sensor which operate at IR or FR signals. The use of IR communication is selected in the implementation of cordless or wireless car security system, this is actually handheld vehicle lock control system. GSM Security Camera with MMS function, 8 IR nights vision LEDs, PIR Motion detection and built-in microphone and speaker. Secure your property with this small surveillance camera and rest assured your belongings are safe. Most wireless systems you’ll encounter are simply power-hungry wired systems that have a radio transmitter added to them; and then either require wired power or batteries.

A remote control locks operation system for a vehicle capable of unlocking a mechanical locking mechanism for mechanically disabling traveling of the vehicle by an infrared signal, without using the key.

Components of project:

Components of the system include:

a handheld remote control transmitter
, a receiver,
a mechanical locking mechanism,
a lock actuator and control unit, and
Wiring sections

The above said components make an efficient car security system. In this project for connecting the lock actuator and the receiver to the control unit mounted in a common module housing contained on the vehicle body. The main components of the system, including the wiring section leading to the lock actuator, are unitized and integrate into the common module housing in order to prevent unauthorized unlocking of the lock.

Wireless mobile communications tracking systems use satellite-tracking Global Positioning System (GPS) technology for vehicle location information, as well as satellite and/or cellular communications technologies for two-way communication.

To implement this application required components are one microcontroller, TV remote, IR receiver (TSOP1738), LCD, l293D and DC motor. Whenever user want to open the door, he has to press one remote switch which is related to ON. For that user has to develop one application program in EMBEDDED-C. At the same time for close the door separate key is assigned.

Using mobile communications tracking systems, drivers, dispatchers, and fleet managers can easily communicate during daily operations and emergencies. These systems allow on-site carrier personnel to efficiently send messages, such as load assignments, directly to the drivers in near-real-time. Then, drivers can send messages to dispatchers and respond with current information, such as arrivals and departures.

The Infrared (IR) radiation is electromagnetic radiation whose wavelength is longer than that of visible light (400-700 nm), but shorter than that of terahertz radiation (1 µm – 1mm) and microwaves (~30,000 µm). Infrared radiation spans roughly three orders of magnitude (750 nm and 100 µm).

Basic 8051 family is quite enough for this application of the car security system; hence the developer did not focus on higher end controller families. This application basic that is AT89C51 controller is enough. But is to inform that the project was developed using AT89S52 controller because of inbuilt ISP (in system programmer) option. autocop car security system car security system using mobile phone car security system price car security system using microcontroller


abstract car security DOWNLOAD Source code File

vehicle security system

wireless car alarms DOWNLOAD circuit diagrams File security car alarm system

for downloading circuit diagrams and source code click on the download button

water level monitoring and control using microcontroller 8051

2014-02-10T23:15:00.000+05:00

water level monitoring and control using microcontroller 8051
Each house have a water reservoir or storage tank for the general use. Normally a motor pump (Electric motor, single phase or three phase motor) is sued to pump the water from ground to over head tank. There is a common problem that people forget to switch off the motor and water starts over flows out of the tanks. Or in other way if some-one don't check the water level in tanks on regularly, then no-body will know , how much water is left within the tank and whether there is need to turn ON the pump or not. Mine too have such problem, so here i designed a microcontroller based application to check the water levels in the tank and automatically switch ON the electric motor pump if needed. The feature of this automatic water controller is as under:

1. It is automatic water level controller and Level Monitor, with a facility that you can operate it in two modes Auto or Manual modes. So modes of operation are two, the basic mode is Auto, however user can select manual control of motor via Microcontroller 8051. Full function description is available in text.

2. The over voltage protection and under voltage protection to save the electric motor is included in the circuit. The voltage protection is an analog part of controller , however microcontroller decided whether motor should operate or not. If the voltages are not suitable for operation then Microcntroller will not allow the motor to operate. In this way costly motor can be saved. This feature can be bypassed by using manual mode of operation.

3. Up to Eight stages water level monitoring feature to estimate the available volume of water in the tank. This simple water level sensor will be used to calculate the volume.So there is no need to buy costly volume sensors for this. User will be given option to customize the quantity of level sensors as per their requirement by simple selection of number using dip switch.

4. Each operation has configured by adding suitable delays in control to avoid chattering of relays and sparking in power plugs by reducing the frequently ON/OFF of motor.

5. The Auto level controller appication is designed to operate on 220VAC 50HZ, however can be very easily configured for 110VAC by replacing the transformer according.

6. MCU : Atmel Microcntroller At89c51

7. LCD: 16 Characters 2 line LCD display

8. simple level sensors

9. Relay contrller for Electric Motor control provision to use single pahse or three phase motor

10. Additional Motor safety from volatge spikes.

keep checking the download links to get software and hardware of water level monitoring and control using microcontroller 8051, the code will be uploaded soon. Download c-program (code) frm link below.

automatic irrigation system project water supply control using microcontroller and pressure sensor

Windows Phone 8 and BlackBerry

2014-02-06T22:26:00.001+05:00

Windows Phone 8 and BlackBerry

The creator of BlackBerry Messenger, Gary Klassen, recently said in Hong Kong that "BBM will not be limited to just Android or iOS. We are open to other platforms also. We want more are more people to enjoy and experience BBM." Klassen also addressed the problems that prevented BlackBerry from allowing more than 1.1 million new users to join the 60 million BlackBerry owners that already use BBM. read more at http://www.phonearena.com/news/BlackBerry-could-provide-BBM-for-Windows-Phone_id47819

Canadian manufacturer BlackBerry has recently released its BlackBerry 10 operating system, which features on the likes of the BlackBerry Z10, available from Phones 4u. And the newest OS from Microsoft is the Windows Phone 8 operating system sported by the Nokia Lumia 920 and HTC 8X, to name but two, also available from Phones 4u. readmore at.. http://www.studentbeans.com/guestarticles/blackberry-10-vs-windows-phone-8-which-is-the-best-operating-system-for-students--02.html

Apple iOS 7 Outperforms iOS 6, Android, Windows Phone 8 And Blackberry 10 In ‘User Experience Shootout
Google owns several of those key apps (Google search, Maps, Google+, YouTube) Microsoft's Windows Phone 8 has moved further ahead of BlackBerry to consolidate its place as the world's third-biggest mobile operating system.

I use the term “Windows 8” loosely for “Windows Store Apps” (aka Metro apps, or Modern apps, or Microsoft Design Style apps) running on Windows 8 or Windows RT. I am of course excluding Windows Desktop apps.

Vectir 3.2

The Ultimate PC Remote Control

Universal PC remote control from your phone or tablet
Connect over WiFi or Bluetooth
IR Remote Control with USB-UIRT support
Winamp, Windows Media Player, iTunes and PowerPoint support plus many more applications
Remotely browse your media library and select songs
Remotely view and control your computers desktop
Use your phone or tablet as a wireless keyboard
Keyboard, Mouse and Volume control
Design your own custom remotes
Windows XP, Vista, 7 & 8 (32/64 bit)
Free and Full versions available

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free download remote apps iPhone and iPod Touch

2014-02-06T22:13:00.001+05:00

Apps in the App Store are designed to take full advantage of the advanced technologies in iPod touch — like the A5 chip, Retina display, gyroscope, and accelerometer.

Now to get the iPhone apps on your iPod Touch, just follow these steps:

Open install.app (installer application) from the home menu of your iPod Touch and tap “sources” on the bottom menu.
Tap edit and then tap add.
In the “Add Source” field type in “http://applerepo.com” or “http://ipodtouchmaster.com/files/repo.xml” and tap OK.
Tap done and then tap refresh.
Tap “Install” on the bottom menu of the Installer and scroll down with your finger until you see “iPhone 1.1.1 Apps for iPod Touch” and “iPhone 1.1.2 Apps for iPod Touch”. Tap the folder corresponding your iPod Touch firmware version.
Once on the iPhone apps menu, Install the “Prep” packages before you install anything else. Once you’ve installed these then you can continue to install the rest of the iPhone apps onto your Touch.
After you’ve installed all of the iPhone packages/apps, then press the home button on your iPod so that it can reboot.

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Download Applications for media players at smart phone

2014-02-06T21:59:00.001+05:00

doubleTwist
With support for music, podcasts and radio, doubleTwist is the audio player that does it all. The app's Magic Radio feature provides a customized mix of songs based on your existing library, and you can use doubleTwist to instantly sync iTunes or Windows Media Player playlists from your PC to your phone via USB. This handy app is as stylish as it is functional, with a refreshed design for KitKat as well as artist bios and photos that accompany your favorite tracks. doubleTwist works with a bevy of external devices, so you can stream your tunes to your Xbox 360, PS3, Sonos speakers

Music Player with deliciously fresh Android KitKat design! Are you a music lover constantly jumping between different apps to play music, podcasts, or sync playlists? doubleTwist is the best all-in-one music player, podcast manager and iTunes sync Play app, with over 85 thousand five star ratings. Plus, AirPlay music with optional AirSync purchase!

MixZing Music Player

MixZing is simply the most advanced media player around!

▷ Internet Radio brings you thousands of great stations to listen to: browse by genre or let us recommend ones that match your taste

▷ Music ID identifies your songs, even those without valid tags, and lets you clean up their tags and album art

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Remote apps for PC and Mac

2014-02-06T21:37:00.002+05:00

1. Andriod Gmote download free

For Android Gmote is a free application, which lets you control your PC, MAC or Linux music and video player over Wi-Fi. It shows various controls on the screen, with the album art in the background, and can even be used to browse and select files for playback. Another free (ad-supported) app, WIN-Remote, offers connection to your Windows PC over Wi-Fi or Bluetooth. It helps you manipulate almost everything—browser, task manager, video/audio players, image viewers, even presentations. If you want to control specific media players, the Android Market and Apple App Store have free apps for common ones like VLC, Windows Media Player, Media Player classic, XBMC, iTunes & Foobar.

2. Free download iPhone/iPod Touch

For iPhone/iPod Touch One of the best free remote apps for the iPhone/iPod Touch is the Logitech Touch Mouse. It connects to your machine over Wi-Fi and converts the 3.5-inch display into an input device. You get control over the mouse pointer with multi-touch gestures thrown in, and an on-screen keyboard can be used to enter text. Apple's free app, Remote, is perfect to control iTunes. Apps like i-Clickr are used for presentations, VLC remote for VLC player, PowerDVD remote and a Remote X app for controlling media players with a single interface.

3. Windows Phone 8 and BlackBerry

Windows Phone 8 and BlackBerry Vectir's Bluetooth/Wi-Fi Remote lets you launch and control VLC Media Player, iTunes, Windows Media Player and PowerPoint presentations. It has a remote desktop feature to view and handle desktop from BlackBerry or Windows Phone 8 devices. The app is free for the first 30 days, after which you need to buy a licence for the desktop server app (one-time cost ) from www.vectir.com. Vectir also supports Java phones with Bluetooth or Wi-Fi from various manufacturers.industrial control through mobile

Download free Android Gmote

2014-02-06T21:36:00.002+05:00

Gmote turns Android into a remote control for a computer, allowing users to run movies and music at a distance. It supports all of the standard remote control features such as play, pause, rewind, volume controls etc. It also has a built-in file browser that lets you select what to play.

Turns your phone into a remote control for your computer, allowing you to start and control movies and music at a distance. New 2.0 Stream music from your computer to phone! Linux support Control PowerPoint, image slide shows Navigate and launch websites from phone Acts as a WiFi touchpad/keyboard (improved!) Bug fixes

download software

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Universal Blue Tooth controller software

2014-02-06T21:04:00.001+05:00

In this post we will discuss mainly about the Universal Blue Tooth controller software, besides this main focusing point i will try to address the important questions as listed below:

1. How to use your smartphone as a universal remote control?
2. Is your smartphone a remote control?
3. How to Turn our Smartphone into a Home Theater Remote Control?
4. Is the Best Universal Remote Control Going To Be Your Smartphone?

So now we will go step by step:

First of all i want to tell my visitors that now it is possible that you can control your home appliances or any thing with your mobile phone very easy, just by converting the smart phone into universal blue-tooth controller. For this purposes many developer has already been written many valuable application which are available on internet and even some of them are free of cost. So basically if your are going to do this then please go through the whole post and download necessary application stated in this post, links are provided at important places. If you want to use your tablet or smartphone to control various home appliances, even start your car, here are the free apps and systems that will allow you to do so:

1. Crestron is one of the leading brands for home automation. read more...

2. Start your car remotely
Here you will find some valuable information about how to start or control your car remotely from a significant distance. readmore

3. Remote apps for PC/Mac

Mobile operating systems offer a number of applications to control various aspects of your PC/MAC. You can choose to control only the mouse pointer and input text, or handle applications like audio player, video player, presentations, and so on. Each app requires a small server application installed on your PC/MAC, which is also available for free. readmore....

4. Applications for media players at smart phone and as well as

desktop computers
Due to the growing popularity of smartphones, most consumer electronics manufacturers have started providing dedicated free apps for their media devices. Samsung, LG, Philips and Sony have their own apps for the Android & iOS platforms to control their flat-screen TVs, Blu-ray players and home theatre systems through wireless connectivity. You can navigate the menu, change settings and input text using an on-screen keyboard. Samsung's SmartView app lets you stream the TV content to your Android device, while Philips's MyRemote app lets you view pictures from the mobile device on TV. LG offers separate apps for its TVs and Blu-ray players. For WD TV media players, the WDTV Media Players Remote app is available on the Android Market, and works with WD TV Live or Hub. Though Western Digital doesn't develop the app, it works well over Wi-Fi.
The Apps for media players are well describes here on the link below, however you will find good information here on this link:readmore..

Start your car remotely

2014-02-06T21:03:00.000+05:00

Start your car remotely:
1. Viper SmartStart for your car enables you to lock, unlock or start the vehicle using iOS, Android or BlackBerry smartphones. To make it work, you will need the Viper security system and smartphone module installed in your car.

Viper is the world's best selling vehicle security and remote start brand. We use precision engineering and cutting-edge technology to make sure you are in control. Viper systems offer range and features you can count on every time.The app also remembers where your car is parked and provides directions on your phone using augmented reality. Currently, SmartStart works only with the USbased GSM providers, though the company is working on making the app work everywhere. For more information, go to www.viper.com.

2. remote starter

Remote engine starting

Remote start visual notification (parking lights flash)

Door lock and unlock

Power trunk open

Programmable starting (how long the engine will run)

for more information please visit this page: http://www.dmv.org/how-to-guides/remote.php

3. Avital 4103LX Remote Start System with Two 4-Button Remote

Keyless entry
Remote start with two 4-button remotes
D2D compatible
Remote Start System
Panic Mode
Trunk Release
buy from here http://www.amazon.com/Avital-4103LX-Remote-System-4-Button/dp/B002P4P1G2/ref=lp_15736151_1_1/182-4996167-5118245?s=automotive&ie=UTF8&qid=1391701658&sr=1-1

4. Keyless Entry: Car Remote By Campbell/Gambill Designs LLC

This is “Keyless Entry,” a virtual car remote that can function exactly like the one on your keychain! Lock and unlock your car doors, arm the alarm, pop the trunk, even remotely start the engine! Honk the horn, or trigger the panic button – it’s all a touch screen away with this fun and FREE application! Download it today, and don’t forget to lock the doors!
download from https://itunes.apple.com/us/app/keyless-entry-car-remote/id324186373?mt=8

5. - Free app includes SmartPark parking spot finder, parking meter reminder, and guest membership in Viper Motor Club.- When combined with a Viper SmartStart module in your car, you can start, lock and unlock your car from virtually anywhere. Receive push or text notification if your car alarm goes off (when installed with a Viper security system). You can even control your compatible home security system in one convenient, easy to use app. read more https://itunes.apple.com/en/app/viper-smartstart/id333400981?mt=8

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download Crestron software free home automation

2014-02-06T20:40:00.002+05:00

Crestron is a leading software for home automation and to control something with your mobile phone or smart phone. as we know that each installation or instrument or equipment or home appliance normally comes with its own remote control. For this the equipment is setup with a remote controller to communicate with main system. Crestron also provides apps for iOS and Android devices.

These apps connect to the Crestron system using Wi-Fi (for seamless access anywhere) and allow you to remotely control the home appliances or gizmos that are wired to the system.

This is very powerful application and you can control the appliances from anywhere, even you are not nearby them.You don't even need to be at home to control your air conditioning or lighting; you could do it from any place that you can access data connection. The basic Android app is free, but the Pro version for iOS and Android costs a little bit..

Crestron MT-1000C
The MT-1000C provides tactile push-button and touchpanel control capabilities with 16-bit color graphics and WAV audio file playback.

The remote also includes a 3.8-inch active matrix display, a five-way thumbpad, RF control capabilities that operate up to 100 feet and a rechargeable lithium ion battery.
for further information please visit:
http://www.electronichouse.com/slideshow/category/6657/1021/
http://www.crestron.com/

Another thing to keep in mind is that SIMPL is Crestron's programing language. Crestron does not run Windows or *nix (Unix/Linux) on their processors. There is no VB, C+, C++, etc. You do have SIMPLE+ but thats a whole different ball game and it mostly used to write modules and not a whole program, although you technically can.
Download it from:
http://www.crestron.com/about/press_room/press_releases/show_release.asp?press_release_id=1779

Arduino Complete Reference Book example programs

2014-02-02T22:35:00.001+05:00

Blue Control:

https://play.google.com/store/apps/details?id=com.gundel.bluecontrol&feature=search_result

Arduino Companion: The Arduino Companion is an app for designed to help anyone getting into Arduino and electronics. The app contains the full Arduino Reference for offline use, as well as a handy resistor calculator. The Reference contains all of the basic Arduino reference, but it also covers all the included classes for controlling Ethernet, Servos, Serial Communication, LCD Displays, SD cards, Keyboard and Mouse (Leonardo) and more.https://play.google.com/store/apps/details?id=air.com.flashgamer.ArduinoCompanion&feature=search_result
Arduino Reference: https://play.google.com/store/apps/details?id=com.rod.arduref&feature=search_result
Arduino Commander: Control your Arduino board from your Android device over Bluetooth, Ethernet or USB (Diecimila, Duemilanove, Uno r1/r2/r3, Mega, Leonardo, Nano) using WYSIWYG interface, Android sensors or JavaScript script.https://play.google.com/store/apps/details?id=name.antonsmirnov.android.arduinocommander&feature=search_result
Domotic Home with Arduino:DomoticHome send remote http request to Arduino and it takes care to handle relays and sensors. in this way you can hit light on/off, open gate, etc...with your mobile.https://play.google.com/store/apps/details?id=nerdydog.domoHome&feature=search_result
Arduino Quick Reference Lite:An Essential app for all Arduino beginners as well as experts Works with phones as well as Tabletshttps://play.google.com/store/apps/details?id=com.schogini.ArduinoQuickRefLite&feature=search_result
Arduino UNO Communicator:Very simple Android application for communicating with Arduino Uno (with Atmega16U2 or Atmega8U2 programmed as a USB-to-serial converter).https://play.google.com/store/apps/details?id=com.primavera.arduino.listener&feature=search_result
Practical Arduino Vol 1: Introduction to Arduino, Arduino Basics, Blink LED, Digital Read Serial, Analog Read Serial, Fading LEDhttps://play.google.com/store/apps/details?id=com.schogini.PracticalArduinoV1&feature=search_result
Practical Arduino Vol 2: Practical Arduino V2 packed with following chapters:Blink LED, Blink LED Without Delay, Digital Read Serial, Analog Read Serial, Fading LEDhttps://play.google.com/store/apps/details?id=com.schogini.PracticalArduinoV2&feature=search_result
Arduino Communication: Arduino Communication covers topics like ASCII Table, Dimmer, Graph, Physical Pixel, Virtual Color Mixer, Serial Call Response, Serial Call Response ASCII, Serial Event, Serial Input, MIDI Note Player, Multi Serial Megahttps://play.google.com/store/apps/details?id=com.schogini.ArduinoCommunication&feature=search_result
Arduino Examples: Contains Examples from Basics, Digital, Analog, Communication Control Structures,Sensors,Core Functions, Digital, Display, Strings,USB (Leonardo, Micro, and Due specific examples),Keyboard,Mousehttps://play.google.com/store/apps/details?id=com.coderzheaven.arduino_examples&feature=search_result
Arduino Complete Reference:Arduino Fio Programming,Arduino WiFI Shield,Getting started with Arduino Esplora,Guide to the Arduino Leonardo and Micro,Arduino Due,Arduino Ethernet Shield,Arduino Pro Mini,rduino Pro,rduino UnoArduino Wireless Shield with the XBee 802.15.4 modules,ArduinoBThttps://play.google.com/store/apps/details?id=com.coderz.arduino_mega_pack&feature=search_result
Arduino CheatSheet Free: https://play.google.com/store/apps/details?id=com.coderz.arduino&feature=search_result
Arduino Quick Ref Lite: https://play.google.com/store/apps/details?id=com.schogini.ArduinoQuickRefLite&feature=search_result
Arduino Boards: https://play.google.com/store/apps/details?id=com.coderz.arduino_boards&feature=search_result
Arduino Cook Book Lite: https://play.google.com/store/apps/details?id=com.schogini.ArduinoCookLite&feature=search_result

Download and install Arduino GR

2014-02-02T22:19:00.001+05:00

Arduino Microcontroller Arduino GR

Arduino GR has the ability to communicate with the computer, another Arduino, or other microcontrollers. The integrated ATMega 168 provides TTL serial communication 5Volt UART, which is available from the terminals (taking RX) 0 and (emission TX) 1 integrated. In addition to the Arduino development board is built in an integrated FTDI FT232RL which provides serial communication with the computer for programming over the USB port with the help of appropriate FTDI drivers. The drivers are included in the Arduino software and provide a virtual communication port on the computer for the purposes of communication.

The Arduino is a computing platform based on a simple motherboard with integrated microcontroller and inputs / outputs, which can be programmed with the language Wiring (essentially it comes to C + + with some modifications). The Arduino can be used to develop interactive objects but independent and connected to computer through programs in Processing, Max / MSP, Pure Data, SuperCollider.

Stay tuned with the latest Arduino news from arduinogr.com blog! You can also use it as your custom rss feeder app.
Download Arduino GR: https://play.google.com/store/apps/details?id=com.arduino.gr&feature=search_result

Download Arduino Simulator free

2014-02-02T21:55:00.000+05:00

Arduino is a good tool to learn because many advanced applications are now coming by the use of Arduino. If any one start learning programming and designing circuits, then he/ she will need a tool onwhich he/she can test the programm or project recently developed.

Therefore for learning the new tool or developing a complex project need a good simulator.

The simulators are also helpful to avoid some bad situation in which beginners might do something wrong and damage components.

Therefore the Arduino Simulator provides an excellent solution to the above stated problems, namely no damage of parts and components, no money lose spend on hardware, and a noticeable advantage is faster circuit prototyping and no mess with cabling at all!

Today i was searching for this great tool and i notice the following outcome which i am sharing with you. I hope you will find it helpful.
Download
Arduino Simulator Free: https://play.google.com/store/apps/details?id=com.schogini.arduinosimulatorlite&feature=search_result
Change the pre-defined values in the code to see leds blink, play with additional modules like LCD Screen, Stepper Motor, Servo Actuator and DC Motor.

UltraISO CD DVD image burner software

2014-01-30T20:33:00.000+05:00

The UltraISO a powerful program. The user of this software often experience of easy-to-use utility for the process of CD DVD image buring. It can extract, create, edit, convert, and burn CD/DVD image files. By using this wonderful software one can edit ISO files of his choice and after that can write on cd/dvd, OR he can make different images from CD/DVD-ROMs. By using this software one can build new or recent backup files from files and folders on your computer. You have the option to make boot-able CD/DVD images.
UltraISO Premium - it is the program by which the user of computer can make a Virtual DVD on the computer in any format of DVD to ISO files, it is required during the inslattion and play or run games and other files, and through this program one can extract and edit files and copy ISO files to DVD and keep them in case you need them.

Becides the features stated above the UltraISO can convert nearly all known CD/DVD image formats to ISO, BIN/CUE, Nero (.NRG) or CloneCD (.CCD/.IMG/.SUB) format.

File size 4.15 MB

http://dollarupload.com/download.php?file=152698

Free Software for download in one compressed file size 5 MB - and to unzip the file, you can use a program to decompress
File or you can download the most powerful Extract programs decode the files from here WinRAR or WinZip.
The old version of this software are

Released date 22 Jan 2014 name of version UltraISO v9.6.1.3016 (Latest stable version)
Released date 22 Nov 2013 name of version UltraISO v9.6.0.3000
Released date 09 Sep 2012 name of version UltraISO v9.5.3.2901
Released date 21 Nov 2011 name of version UltraISO v9.5.2.2836
Released date 26 Oct 2011 name of version UltraISO v9.5.1.2810
Released date 12 Oct 2011 name of version UltraISO v9.5.0.2800
Released date 28 Jun 2011 name of version UltraISO v9.3.6.2766
Released date 10 Feb 2010 name of version UltraISO v9.3.6.2750
Released date 02 Sep 2009 name of version UltraISO v9.3.5.2716
Released date 11 Feb 2009 name of version UltraISO v9.3.3.2685
Released date 05 Dec 2008 name of version UltraISO v9.3.2.2656
Released date 17 Oct 2008 name of version UltraISO v9.3.1.2633
Released date 05 Aug 2008 name of version UltraISO v9.3.0.2612
Released date 27 Jul 2008 name of version UltraISO v9.3.0.2600
Released date 29 May 2008 name of version UltraISO v9.2.0.2536
Released date 15 Apr 2008 name of version UltraISO v9.1.2.2465
Released date 09 Apr 2008 name of version UltraISO v9.1.2.2463
Released date 28 Feb 2008 name of version UltraISO v9.0.0.2336
Released date 03 Jan 2008 name of version UltraISO v8.6.6.2180
Released date 10 Dec 2007 name of version UltraISO v8.6.5.2160
Released date 02 Nov 2007 name of version UltraISO v8.6.5.2140
Released date 23 Jul 2007 name of version UltraISO v8.6.3.2056
Released date 12 Jul 2007 name of version UltraISO v8.6.3.2052
Released date 18 Apr 2007 name of version UltraISO v8.6.2.2011
Released date 26 Jan 2007 name of version UltraISO v8.6.1.1985
Released date 25 Jan 2007 name of version UltraISO v8.6.1.1982
Released date 29 Nov 2006 name of version UltraISO v8.6.0.1936
Released date 29 Sep 2006 name of version UltraISO v8.5.1.1860

LED Grow Light Technology is Much Improved

2013-05-25T22:23:00.000+05:00

I recall it like it was yesterday – or the day before yesterday, to be fair – the day I got my first led grow light set, back about ten years ago, and the technology sure has improved. Now they have these grow lights for indoor plants that actually do the job well and which really help the novice indoor grower. I’m not some sort of bitter old man saying how kids these days have it easy and back in my day growing was more of an art form, as you had to make do with a lot of homemade materials, and use your own creativity and ingenuity. Granted, that last sentence may make it sound like I am saying that. But no, I think it’s great what technology has done for us.

I’m a big fan of http://www.thelashop.com/ and all the things you can get there. Frankly, some of the homemade materials, while pretty dang brilliant, do not work nearly as well as these newfangled ones. And the bottom line is when you’re growing food, or whatever you’re growing, indoors, you really are more about the product and not the process. Having a plump tomato is more fun than having a wimpy one. So I refer all novices and even pro growers to that site to get all the things they want. I’ve been growing for ten years and my yield is better now than ever before. So there’s a good sense of accomplishment in that. Making dinner from food you grew in your basement sure feels good, and it’s great to brag about to friends at dinner parties. Of course all my friends know the drill now and won’t even come over to my house anymore because all I talk about is how great I am for growing inside. However, it is true, I am pretty great for doing that! No one has ever presented a viable counter argument to that.

PWM with microcontroller 8051 for SCR or triac power control

2011-08-29T00:48:00.007+05:00

The project "PWM with microcontroller 8051 for SCR or triac power control" can be used for two applications.
1. To control AC load's power with SCR or triac by controlling the firing angle or duty cycle for two channels.
2. The project as it is can be used as digital to analog converter "DAC" for two channels.

This project is currently output two PWM signals but can be extended to many PWM signals very easy. The input to the microcontroller is 100HZ pulses as zero crossing.

The project can be used to control the heating of AC heater also.
currently it is build for two channel DAC, the input at port1 and port2 of microcontroller is converted to 0 - 5v accordingly. But if it is desired to control the SCR, then OP-AMP circuit will be removed and optocoupler moc3020 will be used for interfacing SCR or triac.

The circuit diagram of PWM with microcontroller 8051 for SCR or triac power control is as under:

The code of program for PWM with microcontroller 8051 for SCR or triac power control is written c lanuage using keil compiler. The c-code for PWM is as follows.
/* This project is develop to generate two seperate channel PWM signals at 50HZ frequency
The duty cycle of the pulses is variable subject to the input on Port1 and port2.
The output PWM signal can be used to drive SCR or triacs to control the phase angle and power of any load with suitable hardware interface.
Please not that in this project the OPAMP are used to convert the pulses to 0 - 5 V, means you can use it in as two channel DAC also.
But for triac or SCR interface the OPAMP circuit will be re-placed with proper optocoupler like moc3020 and scrs.89c51 as pwm controller
*/


DOWNLOAD Source code File

Download Circuit diagram file

Download Image

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Interfacing large load bank with Microcontroller 8051 port expander

2011-08-24T01:14:00.004+05:00

Interfacing large load bank with Microcontroller 8051 port expander with 4094 serial to parallel shift register:-
This project is output port expander of microcontroller 8051. In this project we will learn , how to interface a large load bank with microcontroller 8051. In this load bank project, up to 50 solid state relays are interfaced with microcontroller using shift register 74LS4094 TTL IC, student can use CD4094 CMOS IC, any of them will work here fine.
The basic purpose of this microcontroller project is to learn the interfacing of shift register for output port expansion.This project is for bank load which could be in the form of a large number of relays to switch ON or OFF the high voltages and high current loads. The same project can be used for the interfacing of solid state relays.
This is improved version of last project ( Control solid state relays up to 50 with microcontroller 8051 ) in which latches were used. The wiring diagram of that project was complicated. Thus by using serial to parallel shift register ICs, the circuit diagram is quit simple now.

To turn ON any individual LED for load, command is n01 or N01 from RS232 serial communication from PC, you can use hyper terminal for testing the project or you can write your own code in any PC language.

To turn OFF any individual LED for load, command is f01 or F01 to F50 or f50. again serial command will be used for this operation.

The project is tested in Proteus ISIS and found OK.
The circuit diagram of project Interfacing large load bank with Microcontroller 8051 port expander is as follows:

The code is written in C language and compiler is C51 keil. The c code of the project is as under:


Download software/ code written for microcontroller 8051 to interface large load

Download circuit diagram for the microcontroller project to interface many relays and large load

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Control solid state relays up to 50 with microcontroller 8051

2011-08-23T01:11:00.008+05:00

This project is developed to control up to 50 solid state relays individually. The project is good learning material for students who which to expand the input output lines of microcontroller and want to control many devices.
This project is a basic idea for bank load implementation.
Features of bank load project using microcontroller 8051:-
1. Up to 50 external devices can be separately controlled with microcontroller.
2. The ON or OFF status of each external hardware device is currently shown with the help of LED, which will be replace with optical isolator to interface the relays or other high load device.
3. This project received serial RS232 commands to control the bank load.
4. To turn any LED (relay attached with the it on any output line), the command is
n_ _ or N_ _ i.e. here n or N stands for "ON" and at blank spaces put the number 01 to 50. so we can say that to turn on the led number 5, command will be n05 or N05.
4. Similarly to turn OFF, the command will be f05 or F05.
5. To expand the output lines, latches 74ls373 are used which are selected with decoded 74ls138 one by one.

The circuit diagram of the project is as follows:

The code is written in C language and C51 keil compiler is used.

Download software/ code written for microcontroller 8051 to Control solid state relays up to 50 with microcontroller 8051

Download circuit diagram for the microcontroller project to Control solid state relays up to 50 with microcontroller 8051

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Elevator Lift control for three stories with microcontroller 8051

2011-08-17T16:47:00.009+05:00

Three stories Lift or Elevator controller with microcontroller At89c51

In this project, we will learn circuit design for a elevator, how to develop a three stories passenger lift or cargo lift using microcontroller at89c51. This is a modal of simple lift or elevator in which a building is assumed which have three floors :

Floor # 0 : The basement (A basement is one or more floors of a building that are either completely or
partially below the ground floor. )

Floor # 1: The ground floor

Floor # 2: The ist floor

There is a cabin of lift or elevator which will be moved up or down among different floors with the help of a motor. In this project of lift or elevator a single motor is used which will move the cabin up or down. Thus we have to learn about the control of this motor which is responsible of lift cabin movement on right time in right direction.

There are three floors in the building, thus lift cabin has to moves between these floor, for floor detection and to generate the arrival of any floor, some sensor are used. The floor detection sensors are limit switches which could be proximity switches. The proximity switches are sensors which changes the stat of a signal when metallic piece comes near them. The Principles of operation of inductive proximity sensors used in PC control, microcontroller or microprocessor projects and automation systems are as a proximity sensor is a sensor able to detect the presence of nearby objects without any physical contact. or in other words we can say that a proximity sensor often emits an electromagnetic or electrostatic field, or a beam of electromagnetic radiation and looks for changes in the field or return signal. The proximity sensors are the best for the detection of floor and could be used in this project. Thus, we will use three proximity sensors for three stories elevator project, one proximity sensor on each floor. These sensors have to be aligned with each other, such a way that, all sensors should be placed on equal distance from floor and these should be mounted to detect the bottom edge of lift cabin. By considering above precaution in the installation of sensors, lift cabin will stop on each floor correctly and doors of cabin and floor will be automatically aligned.

Three signals will be generated from within the lift cabin: these could be push buttons and will be used to request the lift to go on desire floor. The lift cabin will have three push switches for this purpose, one for each floor.7-segment led indication of lift system circuit design

Three signals will be generated outside the lift cabin, one from each floor. Again, these would be push buttons and there purpose will be to call the lift on desired floor, if it is not currently present there.

The status of lift will be indicated with the help of seven segment display. One seven segment display will be install on each floor; which will tell the current location of the lift. following display pattern could be visible on seven segment display of lift project:

0 : It means lift or elevator is on floor # 0 which is basement.

1: It means lift or elevator is on floor # 1 which is ground floor.

2: It means lift or elevator is on floor # 2 which is first floor.

3: This will indicate that lift is just powered up and it is going to its home position which basement. on reaching the basement, display will show 0.

The seven segment circuit is separate from main controller circuit of lift. The power supply of master controller circuit, and three floor indicator circuits (LED seven segment display) will be separate and communication between these will be through optocouplers.

In this project we can use L817 or 4n35 optocouplers. I used L817 optocoupler with no special reason. Please note that the inputs of the master controller will also be connected to microcontroller 8051 through optocouplers like L817. Although, i have not shown the optocouplers for input signals in the circuit diagram with the assumption that students will use these by their own.

The circuit diagram of Elevator Lift control for three stories with microcontroller 8051 is as under:-

KEIL C51 code for lift project for three stories using microcontroller 8051 family.

Download software/ code written for microcontroller 8051 Elevator Lift control for three stories with microcontroller 8051

MICRO CONTROLLER BASED MULTI STORY CAR PARK SYSTEM pc based robot projects using microcontroller AT89C2051 pdf file of car parking system using a plc SENSOR FOR SENSING A CAR WHEN ENRERING A CAR PARK www.8051 program - design lift circuit multi-floor and multi stories bulding circuit design for a elevator www.the basic programming of edsim 8051(design of lift using flow chart)

microcontroller 8051 security alarm based system circuits GSM based Home security system hidden cameras

2011-08-08T20:23:00.012+05:00

GSM based home security system project using microcontroller 8051.

This technical post is actually a tutorial on how to interface gps or gsm module with a microcontroller for different applications like security, control and monitoring, or home appliances control etc.

Main aim of this project is to provide sms based tracking of different locations in the home while you are not at home.This project can also be used to monitor the different signals conditions of the machines in factory or industry. A GPS module will be installed in the home which will transmit the status of different doors continuously after short intervals or when the status of any signal is changed. Location will be sent as a sms through gsm network. These messages will be received by another GSM module situated at some remote location. The purpose of this project is to monitor and control electrical devices (Analog and Digital) remotely using GSM modem/phone. The GSM modem provides the communication mechanism between the user and the microcontroller system by means of SMS messages.

User can have the condition of various signals attached at multiple electrical devices by receiving suitably formatted SMS message from the microcontroller based control system. These SMS commands are interpreted by microcontroller system and are transmitted to other remote mobile.

Function and methodoly of GSM Based Route monitoring and security system.

There are eight input devices attached to microcontroller, the input devices can be extended to 32 depending upon the need. But currently it has only eight inputs. The inputs can generated from from rad switches, IR transmitter and receiver or other magic switches. For security these should be implemented in such a way that these should be hidden. When any of the door is opened, corresponding switch is operated, microcontroller is continuously monitoring all eight switches, on finding the changed in status of the input from door, the microcontroller turns ON the security alarm for a few second. On the same time a SMS is sent to the remote mobile about the latest situation of the home security.

If no other switch is operated (door is not crossed) and door is re-closed on the alarm, then the security alarm will be OFF otherwise it will be ON repeatedly and do send SMS continuously to owner about home or office security.

The major building blocks of this gsm based project are:

1. Microcontroller based control system with regulated power supply.

2. GSM Modem/phone.

3. Digital and Analog sensors and controlled devices.

Above is the circuit diagram of home or office security system. We can see that system has TEN LEDs attached to microcontroller. These LEDs can serve two jobs. One is ofcourse indication and the second is "we can attach any external device with these signals like bulb or camera, or any suitable device using proper optocoupler and relays.

First LED is flashing led, which is an indication that the system is running smoothly. The second LED is for alarm against security problems, remaining eight LEDs can be used for controlling cameras in each room to take snaps of the person who has un-authorised access to that room.

Thus we say that this GPS based camera controlled security system for home or offices.

CODE of the GPS based camera controlled security system using microcontroller AT89s51 is written in keil C51 microvision 4.


Download software/ code written for microcontroller 8051 to interface security alarm based system circuits GSM based Home security system hidden cameras

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circuit diagram for emergency vehicle tracking using pic16f877a

GSM modem interfacing with microcontroller 8051 for SMS control of industrial equipments

2011-08-07T15:10:00.005+05:00

GSM modem interfacing with microcontroller 8051 for SMS control of industrial equipments:-
This is a beginner tutorial in which a GSM modem is being interfaced with the microcontroller AT89s51 for SMS communication. The SMS can be send and recieved for the data sharing and situation information and control. there are many application of the project based on microcontroller 8051 and GSM interfacing. We can use it as a remote control of industrial machines or we can sue it for home automation or we can use it for the security of home or offices.gsm control 8051

The sending SMS through GSM modem when interfaced with microcontroller or PC is much simpler as compared with sending SMS through Modem in PDU Mode.Text message may be sent through the modem by interfacing only three signals of the serial interface of modem with microcontroller i.e.,TxD,RxD and GND.In this scheme RTS and CTS signals of serial port interface of GSM Modem are connected with each other.The transmit signal of serial port of microcontroller is connected with transmit signal (TxD) of the serial interface of GSM Modem while receive signal of microcontroller serial port is connected with receive signal (RxD) of serial interface of GSM Modem.The COMPIM Serial Port Model shown in the schematic diagram developed in Proteus VSM is equivalent to the serial interafce of GSM Modem.Sending SMS Messages from a Computer / PC Using AT Commands (AT+CMGS, AT+CMSS)

8051 projects based on message recived on mobile

The following are the AT Commands and sequence of events performed for sending text message to a mobile phone through GSM Modem interfaced with microcontroller :

1. First select the text mode for SMS by sending the following AT Command to GSM Modem : AT+CMGF = 1 . This command configures the GSM modem in text mode.

2. Send the following AT Command for sending SMS message in text mode along with mobile number to the GSM Modem : AT+CMGS =+923005281046 . This command sends the mobile number of the recipient mobile to the GSM modem.

3. Send the text message string ("hello!") to the GSM Modem This is a test message from UART"
4. Send ASCII code for CTRL+Z i.e., 0x1A to GSM Modem to transmit the message to mobile phone.After message string has been sent to the modem, send CTRL+Z to the micro-controller,which is equivalent to 0x1A (ASCII value) Every AT command is followed by i.e. carriage return and line feed
you are giving line feed first and carriage return after that.
"\r" stands for carriage return

Interfacing 8051 with gsm modem equipped with RS232 serial interface is the same as interfacing AVR with GSM modem is.
The SMS message in text mode can contain only 140 characters at the most.It depends upon the amount of information collected from GPS Engine that you need at the base station for tracking vehicle or person

The most important string of GPS is "$GPRMC..." which contains the minimum information required in tracking a target additionally you may need the information regarding the number of satellites that are visible to the GPS receiver.So it depends upon how much information you need to pack in 140 characters of SMS in text mode.

code for the interfacing the GSM modem with microcontroller 8051 for just testing of connection and serial communication is under:-

Download software/ code written for GSM modem interfacing with microcontroller 8051 for SMS control of industrial equipments

Tags:-Introduction to SMS Messaging ,What Makes SMS Messaging So Successful Worldwide? , Example Applications of SMS Messaging , What is an SMS Center / SMSC? , Basic Concepts of SMS Technology , Intra-operator SMS Messages , Inter-operator SMS Messages , International SMS Messages , What is an SMS Gateway? , How to Send SMS Messages from a Computer / PC? , How to Receive SMS Messages Using a Computer / PC? , Introduction to GSM / GPRS Wireless Modems , How to Use Microsoft Hyper Terminal to Send AT Commands to a Mobile Phone or GSM/GPRS Modem? , Introduction to AT Commands , General Syntax of Extended AT Commands , Result Codes of AT Commands , AT Command Operations: Test, Set, Read and Execution , Testing the Communication between the PC and GSM/GPRS Modem or Mobile Phone ,Checking if the GSM/GPRS Modem or Mobile Phone Supports the Use of AT Commands to Send, Receive and Read SMS Messages , Operating Mode: SMS Text Mode and SMS PDU Mode , Setting or Reading the Service Center Address / SMSC Address (AT+CSCA) , Preferred Message Storage (AT+CPMS)
23. Writing SMS Messages to Memory / Message Storage (AT+CMGW) , Deleting SMS Messages from Message Storage (AT+CMGD) , Sending SMS Messages from a Computer / PC Using AT Commands (AT+CMGS, AT+CMSS) , Reading SMS Messages from a Message Storage Area Using AT Commands (AT+CMGR, AT+CMGL) SMS alarm je vrlo jednostavan uređaj. Za slanje SMS poruka koristi Siemens telefon a ima 5 ulaza - znači šalje 5 različitih poruka. Za svaki senzor uprogramiramo odgovarajuću poruku koju želimo da primimo na mobilni kada se alarm aktivira. Programiranje se vrši preko PC-a odgovarajućim programom koji je priložen u arhivi.

GSM modem interfacing with microcontroller 8051 for SMS control of industrial equipments

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