Relay tutorial – controlling big, mean, devices

Relay tutorial – controlling big, mean, devices


Sparkfun posted another handy tutorial, this one covers how to use a relay to switch wall power via one little ol’ 5-volt microcontroller. A very helpful ability to add to your palette, which of course requires the obligatory “mains supply” caution statement – Don’t Touch! I very much look forward to resetting my cable modem via AVR, how bout you? – Controlling Big, Mean, Devices

Discuss this article with the rest of the community on our Discord server!


Maker Faire Bay Area 2023 - Mare Island, CA

Escape to an island of imagination + innovation as Maker Faire Bay Area returns for its 15th iteration!

Buy Tickets today! SAVE 15% and lock-in your preferred date(s).