BUILD CIRCUIT

Infrared sensor with PWM

Sagar — Sun, 20 May 2012 09:00:00 +0000

Description: In this project, Arduino first encodes the remote signals and decodes them to control LED brightness. First of all, connect the Infrared sensor as shown in the picture below. Then, press keys 0 through 4; Arduino stores the values for keys 0 through 4 and when the sketch runs, key 0 turns off [...]

Infrared tester using Arduino and TSOP 4838

Sagar — Sat, 19 May 2012 21:00:10 +0000

Description: This project lets you know about Infrared. The LED connected on pin 13 of Arduino toggles each time a remote button is pressed. It should work with normal TV/VCD remote.Before you make this project, I strongly recommend you to make a basic remote tester with some basic electronic components. This is the fundamental circuit for [...]

How to make an easy robot using Arduino, Android, Amarino, Ardumoto and Magician Chassis

Sagar — Thu, 17 May 2012 21:03:07 +0000

Project Description: This project gives you the basic ideas for making a robot using Amarino and Arduino. You can control your robot with Android Smart Phone. You can easily move the robot forward, backward and rotate in both clockwise and anticlockwise directions.It is one of the easiest methods of building a robot. This project has [...]

Experiments with 741- Operational amplifier

Sagar Sapkota — Tue, 15 May 2012 18:18:24 +0000

Description: This versatile 741 operational amplifier module can be used for making a dark detector using an LDR, a photo transistor and a photo diode. The amplifier has been configured in inverting mode. It compares the change in voltage at pin 2 with the reference voltage at pin 3 and gives output at pin 6 [...]

Audio amplifier using LM386

Sagar Sapkota — Sun, 13 May 2012 15:43:31 +0000

Description: The LM386 is an audio amplifier designed for use in low voltage consumer applications. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pins 1 and 8 will increase the gain to any value from 20 to 200. You can use this useful audio amplifier [...]

Clap switch using 3 different modules

Sagar Sapkota — Wed, 09 May 2012 07:30:40 +0000

Description: In this clap switch we use three different modules given below. It is necessary to make these three modules in order to make a clap switch. a. Dark sensor using 2 transistors. b. Monostable mode of 555 timer. c. Toggle switch using 555 timer. Now, follow these steps: Step 1: Connect 555 timer dark [...]

Object counter

Sagar Sapkota — Tue, 08 May 2012 16:15:01 +0000

Description: This is a simple object counter circuit that counts from 0 to 9. You can make this project using four different modules listed below: Infrared remote tester RC module Counter module Astable module Follow these steps: a. Connect collector pin of infrared remote tester to positive terminal of electrolytic capacitor of RC module. b. Connect [...]

Infrared based music transmitter and receiver

Sagar Sapkota — Tue, 08 May 2012 14:09:03 +0000

Description: An infrared based music transmitter and receiver is made up of three different modules. Test these three modules before you make this project. An audio amplifier Dark sensor using 741 Melody generator using UM66 You can make this project using phototransistor as well as photodiode. Follow the following steps: a. Make a melody generator [...]

RC module

Sagar Sapkota — Mon, 07 May 2012 21:52:30 +0000

Description: An RC circuit is used to introduce time delay in circuits. A combination of resistor and capacitor gives a time constant. The following circuit shows a basic RC circuit. In the figure C1(100uF) works as a storage capacitor. When you press the switch, the capacitor charges quickly and provides base current to the transistor [...]

Basic remote tester

Sagar Sapkota — Mon, 07 May 2012 08:55:35 +0000

Description: This circuit can be used for testing your TV, DVD, VCD, etc. remote control. This is the fundamental module for making infrared based object counter. This project has been derived from “Remote tester project” . DATASHEET OF TSOP4838 According to the datasheet of TSOP4838, the input voltage to IR sensor should be 3V-5V. When the [...]