Infrared Remote Control Circuit is built by using 555 timer IC and 7474 IC i.e D-Flipflop IC.
Imagine the convenience of selecting TV channels using your remote and then pointing the same remote to your switchboard to switch on/off the fan or the tube light. Here is a simple circuit to remotely switch on/off any electrical device through a relay using the normal TV/ VCR/VCP/VCD remote control unit. It works up to a distance of about 10 metres.
WARNING - Working with MAINS POWER is potentially FATAL.
Circuit diagram of this project:http://www.hdevloptech.com/2017/07/3-vs1838-555-74-74.html
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