E&E PROJECTS

Design and Construction of a Radio Frequency Remote Controller

2010-08-25T17:28:00.003+01:00

Operated either by AC or DC, this Radio frequency based remote controller usually controls the load, may be two or more, situated at certain distance from controller. this systems is based on functioning of two major parts viz. i) The transmitter ii) The receiver. The basic operation that controls this system are modulation and demodulation. Modulation is the basic part of transmitter whereas the demodulation is placed in the receiving part of the system. The objective of the system is controlling the load that are in the receiving part by triggering it by sending RF through transmitter. As the result, the system will be acting as a remote controlled device. the system is to be established with the help of communication link i.e. radio frequency. the required is set up by considering the type of load and the distance of the receiving unit. Initially the circuit is designed for two loads. however the number is load can be incremented as desired.

the transmission section deals with sending the signal for controlling load.. The transmitter usually comprises of
i) Oscillators,
ii) Modulator
iii) Filter
The loads are fixed with their desired modulating frequency. The desired carrier frequency is set up for signal transmission.

The receiving section comprises of units for amplifying, demodulating and filtering. Which sends required signal to respective loads for carrying operation after verifying it. It also comprises of logical circuit for controlling the loads. The demodulation operation is carried by the FM receiver and the logic circuit controls the desired sequential operation for loads.

The transmitter Section

i. Oscillator

The two oscillator generates the modulatied frequency of 1.2 KHz and 10 KHz for the two load control. The oscillators used here are Wein Bridge Oscillator.

ii. Filter

The two ferquency are filtered using a filter to minimise the noise and tranmission of effective signal. The two filters used are the second order Sallen Key filters, one is 1.2 KHz low pass and the latter is 10 KHz high pass.

iii. Modulator/ Oscillator

This acts as a radio frequency generator for the transmission. The 102 MHz oscillator using the tank circuit generates the carrier frequency ready for the tranmission from the transmitter.

1.2.2.2 The Receiver Section

i. RF Amplifier

It amplifies the signal received from the transmitter. The output of the transmitter is about 15-20mV in amplitude. This amplitude is amplified, in order for the signal to control the loads in the receiver section.

ii. FM Demodulator

It demodulates the transmitted signal. The modulated signal of the 1.2 KHz and 10 KHz is demodulated here to receive the transmitted frequency for the load control. The FM receiver here is the FM demodulator.

iii. Filter

The Filter in the receiver part is same as in the transmitter part. The Filter is used in order to differentiate the two frequencies. The receiver then identifies which signal had been transmitted(1.2 KHz and 10 KHz).

iv. Logic

This part consists of logic for controlling the load. The turning on and off of the load is done with the same trigger. This is made possible using the logic circuit which consists of the Schmitt trigger along with the timer circuit. Thus formed output will be used in sequential circuit for the load control.

Methodology

The radio frequency remote controller system will operate at the carrier frequency of 102 MHz. The methodology can be summrized in the following ways:

The Transmitter Section

§ The radio frequency of 102 MHz is used for the data transmission.

§ Two oscillators used for the modulating frequency for load control.

§ Two modulating frequency: 1.2 KHz and 10 KHz.

§ 2 KHz low pass and 10 KHz high pass filters in the transmitter for better

transmission and reduced noise level.

§ A high frequency oscillator for generating the carrier frequency of 102 MHz.

§ An antennae for the radio frequency transmission.

The Receiver Section

§ FM receiver for the frequency demodulation.

§ The two filters for distinguishing the two modulated signal.

§ The logic circuit to make the load turn on and off with the same trigger i.e.

turn on the load with the high trigger and turn off with same other high level

trigger.

§ Electromechanical devices to trigger the AC driven load.

The Transmitter Section

3.1.1 Oscillator

The oscillators used here are Wein Bridge Oscillators. The total phase shift around the circuit is zero degree. This condition occurs only when the bridge is balanced, i.e. at resonance. The transmitter section consists of the two oscillators for the modulating frequency of 1.2 KHz and 10 KHz.

1.2 Kiloherz Wein-bridze oscillator

Modulator

Fig 6 shows the carrier frequency generator and modulator. The modulation of the frequency is done by the modulating signal by changing the reactance of the tank circuit i.e the carrier oscillator. For the colpitt oscillator, the components at the input and output are connected in parallel. In this case, the feedback through the capacitor is negligible in comparison to that through the inductor.

Antenna

The used antenna is the dipole antenna of the length λ/8. This propagates the radio frequency of 102 MHz to the receiver for the load control.

Antenna

The used antenna is the dipole antenna of the length λ/8. This propagates the radio frequency of 102 MHz to the receiver for the load control.

The Receiver Section

3.2.1 FM Demodulator

For the load control, the signal is demodulated in the receiver part. The work had been done for demodulating the signal but the appropriate output was not obtained. Thus for the demoduation the FM receiver is used which acts as a demodulator for the receiver section. A FM receiver can be used for this purpose as the main purpose is the demodulation only.

3.2.2 Filter

The filter in the receiver part separates the two frequency from the transmitter side. The filter used is the second order Sallen Key filter. The first Op-Amp used is the bandpass filter while the second opamp is for the low pass filter of 1.2 KHz.

Logic Circuit

The logic circuit consists of following circuits:

· Schmitt Trigger

· Monostable circuit

· Sequential circuit

The Schmitt trigger has the threshold frequency of + 2 volts. This is done in order to minimize the effect of noise. The output from the filter is fed into the schmitt trigger and the amplitude above 2V triggers the circuit. The negative going signal triggers the 555 monostable circuit and samples the signal to the NAND gate. The output of the NAND gate is the square wave. The negative going signal from the NAND gate triggers another 555 monostable circuit which in turn gives the signal to the JK Flip flop and thus controls the load.

Logic Circuit

The logic circuit consists of following circuits:

· Schmitt Trigger

· Monostable circuit

· Sequential circuit

The main purpose of the product (system) is the remote controller. It acts as a switch between the user and load in which the interfacing unit is the radio frequency lying in the FM band (88-108 MHz). The carrier frequency is of 102 MHz which is transmitted for the load control.

Hardware Control via SMS

2010-08-25T16:10:00.003+01:00

System Overview
The system consists of two mobile connected by the existing cellular mobile network. One of the mobile is connected to the computer by USB data cable. The computer contains the series of computer program that is capable of retrieving SMS, processing and directing hardware to produce the desired output. The hardware part is connected to the computer by the parallel port.

2.2 Hardware Description:
2.2.1 Mobiles
The basic component of our project starts with two mobiles. These mobiles are used to send and receive SMS through the available cellular network configurations. One of the mobile is connected to the computer through usb data cable. The other is used by the user to send the SMS to the connected mobile. Since the project’s backbone is the SMS, the SMS has to be fed to the computer and this is done by mobile software which will be discussed under software discription portion.

2.2.2 USB data cable
The USB data cable is the connector that connects different hardwares to the computer. In our project, we have used this cable to connect the mobile to the comptuer.

2.2.3 Parallel Port
Another hardware that plays vital role in the project is the parallel port. The primary use of parallel port is to connect printers to computer and is specifically designed for this purpose. Thus it is often called as printer Port. The lines in parallel port connector are divided in to three groups, they are

1) Data lines (data bus)
2) Control lines
3) Status lines
As the name refers, data is transferred over data lines, Control lines are used to control the peripheral and of course, the peripheral returns status signals back computer through Status lines. These lines are connected to Data, Control and Status registers internally. The details of parallel port pin configuration and signal lines are given below

At this stage, we have tried to light on the led. This is at the simplest stage of the project. When successful in this we intend to extend this part and try other circuits. Many other hardware components can be controlled by using parallel port. Upto this moment, we have used 8 output pins of parallel port indivudally or combination of them. The hardware circuit consists leds that are connected through diodes and reistors. Diodes are used to prevent the back-flow of voltage. It prevents the computer from being damaged since diodes allow one directional current/voltage flow. The output can be taken from pins 1-9, 14, 16, 17 of parallel port .The hardware configuration is shown below.

2.2 Software Discription

As already stated that the project is the combination of SMS, computer program and output hardware, software is the soul of the project. There are various steps of program used in the project which are described below:-

2.2.1 Batch file programming

Batch file is a type of file in computer that allows to store dos commands. We took help of it inorder to convert the SMS file type (*.vmg) to the text file (*.txt) where .vmg and .txt are the extension of the file. The batch file runs as an auto executable file (that is this file will be run at the time of computer startup).These extensions help to recognize the format of the file. The batch file was also used to copy the SMS from mobiles’ phone browser folder to the computer’s memory. This was needed because it was almost impossible to operate on the file with the previous SMS type and location of SMS. The code of the program is as follows:-

@echo off

IF EXIST *.vmg (

Del d:\ <location>\ text.txt

Copy *.vmg d:\<location>

Rename d:\< location> *.vmg text.txt

Del *.vmg

Del d:\<location>\*.vmg

Autocopy.bat

)

Autocopy.bat

The batch file is named as autocopy.bat. At first the batch file searches if there appears any new message at inbox or not. If the condition satisfies, the previous text message from destined location will be deleted and new .vmg message will be copied to the required location. This SMS will then be renamed as text file. Then it deletes the SMS from the inbox as well as from the location. Now, again the same autocopy.bat file will be executed to continuously search for the SMS.

2.3.2 Turbo C Programming

Normally, data, control and status registers will have following addresses. We need to provide these addresses in program.

Table 2: Registers address

Register	LPT1
Data register (Base Address + 0)	0x378
Status register (Base Address + 1)	0x379
Control register (Base Address + 2)	0x37a

Now we are using eight data resistors for our output, each of which is read as binary value as below.

D7 - “10000000” D6 – “01000000” D5 – “00100000” D1 – “ 00000010”

Similarly, to read D1, D2 and D6 respectively at once: “01000110”

However; with actual programming, this binary value is replaced by equivalent decimal number to perform the required task.

2.3.2.1 Coding for Parallel Output:

Reaching the ports by using a language differ from port to port. Using Windows 98 we can easily reach the ports with a function which is "outportb". However; when upgraded to Windows 2000 this fails because of its kernel. We can not reach the ports directly in NT, 2000 and XP because of their kernel and their printer drivers. For eg. first we made the circuit as in the fig. 4 and then restarted the computer; for Windows 98, there was no light in the circuit but in Win2000 and XP all the 8 lights are on so we know that the signal is coming and the pins are registered by their kernel with the printerdriver.

Since, our operating system will not be windows 98, as it doesn’t support pc-suite, we need to go hardware interferance as in the below flow chart.

So we have to import inpout32.dll to our debug or release directory. It takes two variables which are address and value. If the data ports are set in "0x378" we have to write "888" because "378" Hexadecimal is equal to "888" in decimal.

The below program will function in windows 98:

#include <conio.h>

#include <dos.h>

#define port 0x378 // Port Address

#define data port+0 // Data Port of the parallel cable

void main (void)

{

outportb(data, 255); // For all lights on

outportb(data, 0); // For all lights off

}

However; if the OS is Windows NT or above, first we must interface with the driver as shown in the flow chart. We are currently working with this type of interface to have better idea before we actually implement such type of coding.

The below program will function in windows 98:

#include <conio.h>

#include <dos.h>

#define port 0x378 // Port Address

#define data port+0 // Data Port of the parallel cable

void main (void)

{

outportb(data, 255); // For all lights on

outportb(data, 0); // For all lights off

}

Content of message.txt, fetched from the PC-SUITE:

BEGIN:VMSG

VERSION:1.1

X-IRMC-STATUS:READ

X-IRMC-BOX:INBOX

X-NOK-DT:20081215T085618Z

BEGIN:VCARD

VERSION:2.1

TEL:+9779841346181

END:VCARD

BEGIN:VENV

BEGIN:VCARD

VERSION:2.1

TEL:

END:VCARD

BEGIN:VENV

BEGIN:VBODY

Date:15.12.2008 13:56:18

# SWITCH OFF : 1 #

END:VBODY

END:VENV

END:VMSG

The above program will fetch only the required message #SWITCH OFF : 1# from the program and makes the string compare with the already defined strings to make logical operation and hence to direct output.

Design and Construction of Noise Detector in Library

2010-08-25T14:58:00.003+01:00

Library is the place of peace and silence where students get opportunity to study and view different reference materials. Peace and silence is the most important feature of library. But many times students dont give much attention to it and consider it to be the normal place. So students make noise in library and ruin its attribute. So taking this issue into consideration, we decided to fabricate a simple electronic device that can solve this problem.This project is for the design and construction of the NOISE DETECTOR IN LIBRARY. This device is able to detect the noise, compare the intensity of louder sound and hence producing the warning signal to the librarian. This system is very economical and helpful in maintaining peace in library.

In this project we have designed a technology to detect the noise and produce the output according to the intensity of noise made. When the sound exceeds the threshold, it is considered as noise which in turn triggers the timer and an output is seen in the LED. Sources of our literature survey are mainly the books, websites and consultation with the faculty members and interaction with colleagues. All those sources were very much useful for us to get knowledge about different components and upgrading our project.

2.1 Hardware Description

In our project various technical processes and devices have been used. We were able to have brief knowledge about them. The various electronics component that are to be used are:

2.1.1 Operational Amplifier:

An operational amplifier is a versatile device that can be used to amplify dc as well as ac inputs signals and designed for addition, subtraction, multiplication and division. With the addition of suitable external feedback components the op-amp can be used as ac and dc signal amplification, oscillators, comparators and others. In our project we have used op-amp as an amplifier and a comparator.

In our project we have used the op-amp both as inverting and non-inverting amplifiers.

2.1.1.1 Inverting Amplifier

In the inverting amplifier only one input is applied and that is to the inverting input terminal. The non-inverting input terminal is grounded. Since v₁ = 0V, and v₂= v_infrom the equation

v₀ = -A v_in

The negative sign indicates the output voltage is out of phase with respect to input by 180⁰ or is of opposite polarity. Thus in the inverting amplifier the input signal is amplified by gain A and is also inverted at the output.

2.1.1.2 Non inverting amplifier

The non-inverting Amplifier is the open-loop in which the input is applied to the non-inverting input terminal, and the inverting terminal is connected to the ground.

This means that the output voltage is larger than the input voltage by gain A and is in phase with the input signal.

In all two open-loop configurations any input signal (differential or single) that is only slightly greater than zero drives the output to saturation level. This results from the very large gain (A) of the op-amp. Thus, when operated open-loop, the output of the op-amp is either negative or positive saturation or switches between positive and negative saturation levels. For this reason, open-loop op-amp configurations are not used in

linear applications.

2.1.1.3 Operational amplifier as comparator

A fixed reference voltage V_refof 1.09 V is applied to the (+) input, and the other time-varying voltage V_inis applied to the (-) input. Because of this arrangement, the circuit is called the inverting comparator. When Vin is greater than V_ref, Vo goes to -V_sat(=-Vcc). Thus Vo changes from one saturation level to another when Vin= Vr_ef. In short, the comparator is a type of analog-to-digital converter. At any time the Vo waveform shows whether Vin is greater or less than V_ref. The comparator is sometimes also called a voltage-level detector because, for a desired value of V_ref, the voltage level of the input Vin can be detected. The amplitude of V_inmust be large enough to pass through Vref if the switching action is to take place.

2.1.2 555 timer

One of the most versatile linear integrated circuits is the 555 timer. A sample of these applications includes monostable and astable multivibrators, dc-dc converters, digital logic probes, waveform generators, analog frequency meters and tachometers, temperature measurement and control, infrared transmitters, burglar and toxic gas alarms, voltage regulators, etc. The SE555 is designed for the operating temperature from -55^o to +125^o. It operates on +5 to +18 V supply voltage of monostable mode.

2.1.2.1 The 555 in a monostable mode

A monostable configuration is a pulse generating circuit in which the duration of the pulse is determined by the RC network connected externally to the 555 timer. In a stable or standby state the output of the circuit is approximately zero or a logic-low level. When an external trigger pulse is applied, the output is forced to go high(=Vcc). The time the output remains high is determined by the external RC network connected to the timer. At the end of the timing interval, the output automatically reverts back to its logic-low stable state. The output is low if voltage at trigger pin is greater 2/3 Vcc. However when a negative-going pulse of amplitude larger than 1/3 Vcc applied to this pin, the timer output is high. The output stays low until the trigger pulse is again applied. Then the cycle repeats. The monostable circuit has only one stable state (output low), hence the name monostable. Normally, the output of the monostable state is low. The pin numbers and connections is shown below:

The trigger pulse, produced by pressing the button, must be of shorter duration than the intended output pulse.

The period, T, of the output pulse can be calculated from the design equation:

T = 1.1 * RC secs where R is in ohm and C is in Farad.

2.1.8 Resistor:

Resistor is one of the basic parameter of the electric circuit. In a general way, resistor can be described as that property of a circuit element which offers opposition to the flow of current and in doing so converts electrical energy into heat energy. Resistor is a passive

Circuit element i.e. it does not have ability to produce gain. It also has the bilateral circuit element i.e. it can conduct current in both direction. The resistor that are found in electric circuits doing many different tasks are of several types as regards to physical construction, power dissipating capability, and tolerance of the resistance value.

2.1.9 Capacitor:

A capacitor is a passive electronic component that stores energy in the form of an electrostatic field. In its simplest form a capacitor consist of two conducting plates separated by an insulating material called the dielectric. Capacitance is directly proportional to the surface area of the plates and is inversely proportional to the plates separation. Capacitance also depends on the dielectric constant of the dielectric material separating the plates.

The standard unit of capacitance:

Farad: F

Microfarad: µF (1 µF=10^-6F)

Nanofarad: nF(1nF=10^-9F)

Picofarad:pF(1pF=10^-12)

2.2.7 Light Emitting Diode (LED):

LED is the light emitting diode made of off gallium arsenide (GaAs), gallium arsenide phosphide (GaAsP) or gallium phosphide (GaP) which emits light. GaAs LEDs emit Infrared (IR), radiation which is nonvisible, GaAsP produces either red or yellow visible light and Gap emits red or green visible lights. The normalize output of the visible red LED picks at 660 nm, the yellow at 590 nm green at 540 nm and the IR LED picks at 940 nm. In this project color LEDs are used as indicator and IR LED as transmitter.

2.2.8 Microphone

Microphone is an acoustic to electric transducers or sensor that converts sound into an electric signal. In our context we have used a readymade microphone which will receive the noise made in the library and used to send the electric signal to the preceding circuit. Every microphone has its fixed resistance value to which it gives the maximum performance.

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2010-08-03T01:52:00.003+01:00

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FiltersCAD



	Optimized for personal productivity and designed to speed time to market, FiltersCAD solution deliver filters design product. FiltersCAD designers must now manage the complete design process form early inception to final completion. Everything must be done quickly within a single design environment. With FiltersCAD, you can design lowpass, highpass, bandpass and notch filters with a variety of responses, including Butterworth, Chebychev, Inverse Chebychev and Elliptic in addition to custom responses. FiltersCAD support the following features: - Approximation: Butterworth, Chebyshev, Inverse-Chebyshev, Elliptic for Low Pass, High Pass, Band Pass, and Band Stop Filter Classes. - Displays Transfer Functions - Frequency Response: Magnitude and Phase - Active Circuit Synthesis for Twin T, Injection Resistor, and Sallen & Key. - Easy to Read Graphical Circuit Displays. - Textual Net Lists That Are Ready to Execute in Applications That Support Net Lists. - Analysis of User Modified Elements Including Time Response and Frequency Response using external simulator like PSpice.

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PSU Designer II



	Intro PSU Designer II is designed to help you with the design of simple linear (unregulated) mains power supplies, as often found in tube amplifiers . Key features Rectifier types: Solid state, Vacuum tube types 5AR4, 5R4-G/GY/GYA/GYB, 5U4-G/GA/GB, 5V3-A, 5V4-G/GA, 5Y3-G/GA/GT, 5Z3, 6AU4-GT, 6AX4-GT/GTA/GTB, 6CA4, 6D22S, 6DE4, 6X4, 6X5/GT, 6W4-GT, 83, EZ80, EZ81, GZ33, GZ34, GZ37. Rectifier configurations: Half-wave, Full-wave, Full-wave bridge, Voltage Doubler. Filter configurations: Simple C filter, C/R/C, C/L/C and LC (swinging choke). ESR in capacitors can be catered for, as can winding resistance in chokes. Chain as many filters together as you like. Outputs: Graphic representation of voltages and currents present in the power supply. Tools/Utilities: Transformer off-load voltage calculator, transformer source impedance calculator. Other features: Online context sensitive help. Ability to add extra rectifier types. more at: http://www.duncanamps.com/psud2/index.html


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ExpressPCB



	The ExpressPCBWindows layout software makes designing PC boards simple for the beginner and efficient for the professional. Its standard Windows user interface uses all the familiar commands such as copy, cut, paste & dragging.


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EAGLE Layout Editor



	The program consists of three main modules Layout Editor Schematic Editor Autorouter which are embedded in a single user interface. Therefore there is no need for converting netlists between schematics and layouts.


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FreePCB



	FreePCB is a free, open-source printed circuit board layout editor for Microsoft Windows, released under the GNU General Public License. It is not quite finished, lacking some important features such as a Footprint Editor, Design Rule Check and Autorouter. However, it is quite capable of laying out a PCB and producing Gerber files. Some of its features are: - 1 to 8 copper layers - Board size up to 60 inches by 60 inches - Footprint libraries courtesy of Ivex Design International Inc. - Copper fill areas - Imports PADS-PCB netlists - Exports extended Gerber files (RS274X) and Excellon drill files If you use FreePCB to design a PCB, I would STRONGLY suggest that you check your Gerber files with a program such as ViewMate (available for free here) before spending any money to have the boards manufactured.


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PCB123



	Benefits of PCB123 Here are a few of the benefits you will enjoy while using PCB123 : Free design software + Free & unlimited customer & technical support + Free access to PCB123 online communities & forums Integrated purchasing �fast delivery (real-time pricing as you design) Easy to learn & use, up to 6 layers Intuitive manual & automatic routing including inner layers Comprehensive part libraries At PCB123, your feedback helps drive new and enhanced features to our software. Based on this feedback, we have added the following features from what our customers are asking for the most: Features: * Import Net lists from multiple CAD vendors * 145,000+ parts library * 2, 4, and 6 layer support * Fast, accurate DRC/DFM (Design Rule Check/Design for Manufacturing) * Copper pour with net connectivity * Order your prototype directly from within the software! Benefits: * FREE Schematic and Layout Design Software * Circuit Boards as Low As $10.00 Per Board * Next Day Shipment Available for 2 layers * Three Day Shipment Available for 4 and 6 layers * The Best Support In The Industry


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Merlin PCB designer



	The Merlin PCB designer package Probably you are professionally involved with printed circuit manufacturing and you are looking for a cheap, easy to use package to design printed circuit boards (PCBs). Or maybe you are just making a few PCBs for your job or at home, and even a non-commercial version of a standard PCB layout software would constitute a significant part of your monthly expenses. In either case, you may have found that PCB design packages tend to be rather expensive and complicated pieces of software. But you already have a nice graphics program, like CorelDRAW, on your computer, and you wonder why you could not use it for designing PCB layouts. In fact, you can. Merlin PCB designer is a shareware solution that offers you the possibility to do just that. Available on the net is a zip file containing CorelDRAW files (from version 7 on), and a large component library + manual.


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TARGET 3001! V13 PCB-POOL�dition



	Target-3001.comTARGET 3001! is a CAD-/CAE-software for PCB design. The integration of the schematic-, simulation- and layout data into one user interface, and the integration of these data into one file is revolutionary to the work of the design engineer. The aim is a short time-to-market of your products abandoning internal conversion struggles. The TARGET 3001! Wiki intends to give information on TARGET 3001! It assists you to get started immediately. It shows you how to deal with common tasks, gives you helpful information and points at new important features. TARGET 3001! itself consists of schematic, mixed mode simulation, contour autorouter, autoplacer, PCB layout, 3D view, basic EMC check, frontpanel layout. It provides manufacturing data for production processes of all industry standards.


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MPLAB



	Summary: Integrated Development Environment (IDE) is an application that has multiple functions for software development. MPLAB�IDE an executable program that integrates a compiler, an assembler, a project manager, an editor, a debugger, simulator, and an assortment of other tools within one Windows�application. A user developing an application should be able to write code, compile, debug and test and application without leaving the MPLAB�IDE desktop. It is available for download FREE from our web site. Bundled with MPLAB�IDE software are several code generation tools. MPASM�assembler is a full-featured universal macro assembler for all PICmicro�MCUs. It can produce absolute code directly in the form of HEX files for device programmers, or it can generate relocatable objects for MPLINK�linker. MPLINK�linker links relocatable objects from assembly or C source files along with pre-compiled libraries using directives from a linker script, and supports MPASM� MPLAB�C17, and MPLAB�C18. MPLIB�librarian ia a librarian for pre-compiled code to be used with MPLINK�linker. When a routine from a library is called from another souce file, only the modules that contain that routine will be linked in with the application. This allows large libraries to be used efficiently in many different applications. The latest versions of MPASM� MPLINK� and MPLIB�are bundled with MPLAB�and can be downloaded separately by choosing the web install and selecting only the MPASM� MPLINK� and/or MPLIB� Description: MPLAB�allows you to write, debug, and optimize the PICmicro�MCU applications for firmware product designs. MPLAB�IDE software package includes the following: MPLAB�Project Manager, MPLAB�SIM Software Simulator, MPLAB�Editor, MPASM� Assembler Universal Macro Assembler for the PICmicros and other language products supporting the Common Object Description file format, MPLINK�Object Linker, MPLIB�Object Librarian For more downloads visit: http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1406&dDocName=en019469


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AVR calculator



	Avr fp calc and timer tool


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AVR delay loop generator



	To generate a delay loop in ASM source code just follow the steps in the left part of the window: 1. Enter the cycles the delay loop shall have. (in a future version you'll be able to enter the delay time in seconds). 2. Click the GO-Button 3. Save the generated code to a file or copy the source to your ClipBoard (Copy/Paste). That's it. Watch out for register collisions in your ASM source! You may download, use and copy the programs for free! See german copyright info at top of page for details.


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AVR Studio 4.07



	AVR Studio�4 is the new professional Integrated Development Environment (IDE) for writing and debugging AVR�applications in Windows 9x/NT/2000 environments. AVR Studio 4 includes an assembler and a simulator. The following AVR development tools are also supported: ICE50, ICE40, JTAGICE, ICE200, STK500/501/502 and AVRISP. AVR Studio 4 will in the months to come be upgraded to support more tools and devices. Check this web site regularly for updates.


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IC-Prog 1.05C



	IC-Prog Prototype Programmer Programs : 12Cxx, 16Cxxx, 16Fxx, 16F87x, 18Fxxx, 16F7x, 24Cxx, 93Cxx, 90Sxxx, 59Cxx, 89Cx051, 89S53, 250x0, PIC, AVR , 80C51 etc. This software package allows you to program all types of serial programmable Integrated Circuits using Windows 95/98/NT/2000/ME/XP


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PonyProg2000



	If you are looking for a simple but powerful programmer you are right, it's here. PonyProg is a serial device programmer software with a user friendly GUI framework available for Windows95, 98, 2000 & NT and Intel Linux. Its purpose is reading and writing every serial device. At the moment it supports I²C Bus, Microwire, SPI eeprom, the Atmel AVR and Microchip PIC micro. SI-Prog is the programmer hardware interface for PonyProg. With PonyProg and SI-Prog you can program Wafercard for SAT, eeprom within GSM, TV or CAR-RADIO. Furthermore it can be used as a low cost starter kit for PIC and AVR.


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FlowCode



	Flow Chart Programming for Microchip PIC Microcontrollers Flowcode is a very high level language programming system for PICmicro�microcontrollers based on flowcharts. Flowcode allows you to design complex PIC based robotics and control systems by simply drawing a flow chart of your desired program in a matter of minutes even without any prior programming skills. - Requires no programming experience - Allows complex PICmicro programs to be designed quickly - Uses international standard flow chart symbols (ISO5807) - Full on-screen simulation allows debugging and speeds up the development process - Facilitates learning via full suite of demonstration tutorials and virtual systems (burglar alarms etc.) - Produces ASM code for a range of 18, 28 and 40 pin devices - Allows C code or assembly code to be embedded as a macro - Supports interrupts and A/D converters How Flowcode Works Flowcode is built on a C compiler - C2C. This is a general purpose 8/16 bit compiler designed specifically for PICmicro devices. Flowcode generates a C code file from the flow chart that you create. This C-code is automatically compiled into assembler code by the C2C compiler and then translated into a Hex machine code file using Microchip's MPASM assembler. Any third party PIC programmer can then be used to download the resulting Hex file into the target PIC's program memory. If Flowcode is used with an optional training and development board then this whole operation of compiling assembling and downloading is carried out with one button, providing a totally seamless PICmicro development tool. Supported PIC Devices Flowcode runs on Windows 98, 2000, NT, ME and XP and supports code generation for the following PIC devices: PIC12C671, PIC12F629, PIC12F675, PIC16C61, PIC16C62, PIC16C62A, PIC16C62B, PIC16C63, PIC16C63A, PIC16C64, PIC16C64A, PIC16C65, PIC16C65A, PIC16C65b, PIC16C66, PIC16C67, PIC16C620, PIC16C620A, PIC16C621, PIC16C621A, PIC16C622, PIC16C622A, PIC16C71, PIC16C72, PIC16C72A, PIC16C73, PIC16C73A, PIC16C73B, PIC16C74, PIC16C74A, PIC16C74b, PIC16C76, PIC16C77, PIC16C710, PIC16C711, PIC16C712, PIC16C715, PIC16C716, PIC16C717, PIC16C745, PIC16C765, PIC16C773, PIC16C774, PIC16C84, PIC16CE623, PIC16CE624, PIC16CE625, PIC16F627, PIC16F627A, PIC16F628, PIC16F628A, PIC16F648A, PIC16F630, PIC16F676, PIC16F72, PIC16F73, PIC16F74, PIC16F76, PIC16F77, PIC16F737, PIC16F747, PIC16F767, PIC16F777, PIC16F84, PIC16F84A, PIC16F87, PIC16F88, PIC16F818, PIC16F819, PIC16F870, PIC16F871, PIC16F872, PIC16F873, PIC16F873A, PIC16F874, PIC16F874A, PIC16F876, PIC16F876A, PIC16F877, PIC16F877A


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