/diy/ - Do It Yourself

Anonymous Mon Jul 9 15:23:46 2018 No.1422277 [View]
File: 3 KB, 480x208, ircodes8.png [View same] [iqdb] [saucenao] [google]

How do I generate a modulated TV remote signal with my attiny85?
It needs to be precisely 38kHz, but only turn on at specific times.
I was thinking about using two timers, one running at 38kHz and other triggering periodically every 600us, so a 1 would be two ON periods of 600us followed by one OFF period of the same time, and a 0 would be one period ON and one period OFF.

Would combining two timers be a sensible idea? Is there a better way to send a 38kHz signal inside a longer one?

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