DIY Remote Tester
This module can check a faulty remote.it is very easy to make.
Diy Remote Testing Module Using IR Diode
You can check this video for more detailed info
Parts required
- LM358 (Dual channel Op Amp)
- 100k pot
- 100k, 1k resistor
- Cearamic capacitor(104)
- LED bulb
- IR led
This is very simple remote testing module you can make it or simply purchase it
From market it is very cheap.
Working
It is based on lm358 opamp ic. In inverting point we set a refrance voltage useing 100k pot. when IR led detects any infrared light from remote it conducts positive potential to non-inv point of opamp . Then output goes high and finally LED bulb light up. You can also use any elecronic buzzer in place of led or parallel with led for audible sound according to remote signal.
Make it and good luck