Companion Sheild

The entry level shield is labelled The Companion Shield. This is a PCB laid out in the pattern of a solderless breadboard. The holes are single sided, which means that components can easily be removed using solder mop braid, or a solder vacuum tool, if a mistake is made, or components need to be re-used.
The (PBP3) Companion Shield Manual iCan be downloaded from here
See the Companion Shield in our on-line shop
Re: Why SOUND statement produces loud and clear sound, but FREQOUT - does not?
Here's the code, generated by Claude, which does what I need. While it contains only one active, the idea is clear and code can be modified for wider coverage:
CuriousOne Today, 15:59ty;----[16F1937 Hardware...