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This is a very popular digital click for beginners. It is a DIY Kit. It is now available at BuildCircuit
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How does an FM transmitter DIY Kit work
CONTACTLESS AUTOMATIC WARDROBE LED LIGHT WITH FADE EFFECT
LUX METER MODULE
SOUND ACTIVATED SWITCH – RELAY
PIR SENSOR
AUDIO VU METER 9 LEDS
IR REMOTE VOLUME CONTROLLER
4 CHANNEL INFRARED REMOTE RELAYS
TOGGLE ON / OFF SWITCH
8 CHANNEL RELAY BOARD
ELECTRONIC TOGGLE SWITCH
ONE CHANNEL RELAY DRIVER
DC MOTOR DIRECTION CONTROLLER WITH TACT SWITCHES
DC SERVO MOTOR DRIVER
UNIPOLAR 4-PHASE STEPPER MOTOR CONTROLLER
RC SERVO DRIVER 0-5V
L293D DC MOTOR DRIVER MODULE
DC MOTOR SPEED AND DIRECTION CONTROLLER USING L293D
HALF BRIDGE DRIVER BASED ON IR2104
Clap switch
How to make an FM transmitter
Dark/Light sensor using transistor
Video- LM317 Adjustable Voltage Regulator Tutorial
SensorGraph using android, amarino and arduino
Multi color Lamp using Amarino, Android and Arduino
How to use 315Mhz RF transmitter and receiver modules with arduino
Building a circuit on a breadboard
Clap switch using 3 different modules
Digital Object Counter using LDR and digital IC
Dark sensor using two transistors
Dark sensor using transistor, phototransistor and photodiode
Infrared based music transmitter and receiver
Easy steps for making a line following robot using Infrared LED, Photodiode, Ardumoto and Arduino.
Mode of NE555- Monostable
How to use UM66 or BT66 Musical IC
Water Level Indicator
Object counter using LDR and calculator
How to make a digital object counter using, infrared sensor, CD4026 and seven segment display
Toggle switch using 555
