RC snubber for relays module

Other Hardware General Electronics
27

Hi,
Are your wires between the BluePill and the relay module running alongside the mains power wires?

Can you please post some images of your project please?
The MCU end and the relay module end.

The BluePill is 3v3 logic isn't it?

Thanks.. Tom... :smiley: :+1: :coffee: :australia: