Tuesday, December 15, 2020

Transmit a video stream to a PAL analog TV using low-frequency PWM

 



Uses STM32F411 a slow 6.86MHz PWM output to generate modulated transmitting output and the 9th harmonic is 61.71MHz (it is picked up on channel 3 of the TV).

https://hackaday.io/project/171977-pal-streamer

https://github.com/zst123/PAL-Streamer






He used an AVR ATTiny85 to generate PWM waveforms which were picked up by his TV.

https://hackaday.io/project/4348-attiny85-does-ntsc-over-vhf

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