I want to power a 12 V RGB LED strip (just the red and green LEDs) from a WeMos D1.
My plan was to use any of my relays I have laying around at home but it seems they are all 5 volt or more.
The D1 has a 5 volt pin, but is it safe to put that 5 volt to a digital input pin and have that act as ground?
What are my other options? 3 volt relays seems hard to find here.