voltage divider...

A project log for Automation - 434MHz Arlec power switches

Hooking arlec RC power switches up to modern home automation systems

ShinyShiny 04/25/2016 at 23:510 Comments

The switches cause the micro to send the signal, when they are pulled low.

I've hooked up a voltage divider on each GPIO digital pin on the arduino, so about 2.5V appears at the switch, instead of 5.