Just wanting to check if the following is OK to do, or if I'm likely to melt/explode something/someone. Have not used a relay before! I want to power a tiny 5v fan, in a cabinet. When the door is closed the fan is on, but turns off while the door is open. The problem is the fan draws 150ma. I figu…

Basic question, usb cable, relay, and 5v fan

Paul_B September 27, 2021, 3:26pm 7

Rubbish!

Presumably you were actually thinking of a WeMOS D1 Mini.