PiFmRds

Funny, in last weekend I was playing with various projects [0][1][2] based on the idea from this article. It was impressive how long range Raspberry Pi achieved even without the cable antenna. They do work - transmit audio over the FM waves, but sadly the quality (buzzing noise) is far from expectations. Initially, I thought it is just my Raspi 3B, but when dived into the issues section on GitHub, I noticed more people were claiming they had similar problems. Do you know what could cause such degradation? Is there any better solution to transmit FM in a home? Worrying fact is it also spams close ranges making them unable to listen. Have you applied any filter making it more stricter about the wave range it will take? [0]: https://github.com/ChristopheJacquet/PiFmRds [1]: https://github.com/markondej/fm_transmitter [2]: https://github.com

No. There are some that actually use the Raspberry Pi hardware, such as PiFM[0]. Others merely use GPIO, which of course can work on a number of other SBCs (eg a Beaglebone Black) or anything with GPIOs. The only Raspberry Pi specific thing here is how it connects to the webcam, because the Raspberry Pi doesn't expose the camera as a standard v4l device, they have their own way of doing it. [0]: https://github.com/ChristopheJacquet/PiFmRds