ryanomite, 1 year ago Thanks so much! It turns out that the relay (8x) module I’m using - https://www.amazon.com/gp/product/B00LX3UH9C - has isolated relays… but I’ll try a diode, too.
Thanks so much! It turns out that the relay (8x) module I’m using - https://www.amazon.com/gp/product/B00LX3UH9C - has isolated relays… but I’ll try a diode, too.