I have 3 12VDC/40A automotive relays (datasheet) that I want to use with my Arduino. Based on the tutorial I am following (link) I need transistor, resistor, and diode. I am not an electrical engineer ...
I have a solid state relay which needs at least 3V to activate, and I need to toggle with a 2.3V output from a microcontroller. I've also got a 6V 1A power supply which I can use to power the relay. ...
I want to do some work with automating christmas lights later this year and my friend and I think relays may be the way to go. After a little more thought, I think it would be cooler if the lights ...
I need help on what resistor (if any) I need for this set up. 12v car power as signal power to DPDT relay switch. What do I need on the deadend side of relay signal?