Wemos D1 & Relay shield
For one of my hobby projects I would like to control 24V (19W) mist maker using Wemos D1 and Relay shield.
This is my current wiring:
Is it OK to connect grounding of mist maker and Wemos together? With other words - should I have two power supplies in order to decouple the wiring for some reason?
Thanks for any helpful feedback in advance.
This looks like it should work, but I'd use a large electrolytic capacitor (e.g. 1000uf) across the 5V and Gnd connections to the D1 Mini. Those switching power supplies can have a lot of ripple.