Infrared Remote Tester

Posted on Feb 7, 2014

A very simple device allowing a quick check of common Infra-red Remote-Controls can be useful to the electronics amateur, frequently asked to repair or test these ubiquitous devices. A reliable circuit was designed with a handful of components: the LED will flash when any of the Remote-Control push buttons will be pressed. The side of the Remote-C

Infrared Remote Tester
Click here to download the full size of the above Circuit.

ontrol bearing the IR emitting diode(s) must be directed towards the Photo Transistor (Q1) of the checker circuit: maximum distance should not exceed about 20 - 25cm. Current drawing of the circuit is less than 1mA when the LED illuminates and 0mA when no signal is picked-up by the Photo Transistor: therefore, SW1 can be omitted.

Leave Comment

characters left:

New Circuits



Popular Circuits

LM723CA31402N3055 Variable Regulator 0-30V 5A
power supply How to measure the capabilities of a wall adapter
Interfacing ADAU1701 with AD1955
40mhz rf amplifier circuit
build automatic 6 volt 12 volt 24 volt
5 Dot Led Level Meter
Another simple DC protection
Irregular Flasher
Power amplifier for Loudspeaker 6.5W 8R circuit
5 Watt Class-A Audio Amplifier Circuit