Other projects • Re: Connecting a tuning dial on an old radio

I'd use a rotary encoder for that project. You should be able to completely replace the variable capacitor with the encoder.

https://thepihut.com/blogs/raspberry-pi ... spberry-pi

The problem with a rotary encoder, which is why I didn't suggest it, is that it doesn't give absolute position.

There are absolute rotary encoders as well as incremental. BCD, Binary, Gray etc. Binary will usually give the highest resolution, for a 4 bit encoder that would be 16 positions. There are higher resolutions but the price goes up a lot.

Statistics: Posted by ame — Sat Dec 30, 2023 1:03 am