+1 on the 555 switching, It's fast and you don't need the MC. The only downside is I used the non-latching, which draws a lot of current. There is a latching version that I haven't tried. https://www.pedalpcb.com/product/pcb394/
I layed out the CODA relay switch and made PCBs. I programmed the MCs with the PICkit2. I think the 555 works better.
My other preferred option is the Intelligent Relay with attiny chip from PPCB. The momentary function is super useful for playing live.
I layed out the CODA relay switch and made PCBs. I programmed the MCs with the PICkit2. I think the 555 works better.
My other preferred option is the Intelligent Relay with attiny chip from PPCB. The momentary function is super useful for playing live.