IR REMOTE CONTROL code

[stanley1925]

How actually IR remote control (TV) WORKING? Does any explanation for IR remote control working, and measure pulse width, in order can write a c code to receive the signal. It's better discussing at here than giving a web site to learn.Thank you.

[shahrul]

There is many protocol on IR Remote, it different from many company like Philips, NEC and others.
One I tried before is RC5 protocol from Philips. The idea is, we can capture the rising and falling of the signal using external interrupt (INT0) at the same time we running the timer interrupt to measure how long the 'HIGH' and 'LOW' signal. But, I'm not complete yet the RC5 encoding.