Re: S Meter Nextion 3.2

Vic WA4THR
 

The S-meter requires an external circuit to supply the signal level information. There are several choices ranging from a simple diode detector all the way up to a more complicated second Arduino chip. Take a look at the KD8CEC website as he describes several easily wired circuits. I started with an LM386 amp and detector that connects between the volume pot and a spare Raduino input, and that worked very well. I later replaced that with the second Arduino to get some additional features.

=Vic=

Join BITX20@groups.io to automatically receive all group messages.