SwitchMote is a wireless light switch controller that replaces traditional light switches and allows you to remote control any AC load. SwitchMotes can be independent of each other or they can be synchronized such that when a button is pressed one or more SwitchMotes can turn their loads ON/OFF. It can also be wirelessly programmed (OTA).
This is the latest revision with all SMD components, 3D printed enclosure and and minimal soldering and hand assembly:
Here are some overview videos (SwithMote R2 shown):