Smarter Home Energy Use with Open Source and Cheap Sensors.

A touchscreen control panel for home IOT devices. Arduino, Raspberry Pi, RFM69, mqtt and more.

Magic wand to paint with color light based on temperature.

Another plant watering system, now with a light sensor, 4 LEDs, silent pumps, and memory.

Make life an adventure with new places and companions!

Gizmo to measure the running speed of the shutter on a film camera

Monitors if our barbecue grill is on, displays the grill temperature, and checks if it's okay to leave the deck-door open.