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(not exactly standard wireless) FM transmitter using OSCTUNE

PostPosted: Mon Nov 13, 2017 2:46 pm
by DarioG
It's funny, that you can set your Main oscillator to 88..108MHz (using FRC and PLL), route it to REFOCLK output pin, then sample analog input @22KHz (to say) and use the ADC output to change OSCTUN and... voilĂ , an FM transmitter is done!
(of course, the output is not exactly a sine wave but... )

It does work and... well, just a simple idea. Try it!