Year: 2011

Crafty Events

Click to add an event to the online calendar Email me if you have a call for vendors. Coming Up This Weekend: Urban Folk Show Hillsboro, OR Oct. 7-9 Indie Mart San Francisco, CA Oct. 9 Liberty Local Handmade Craft Fair Ann Arbor, MI Oct. 8-9 Ballston Arts & Crafts Market Arlington, VA Oct. 8 […]

Dual Stage Heating/Cooling Temperature Controller with RGB Display

Dual Stage Heating/Cooling Temperature Controller with RGB Display

I am probably flattering myself, taking any sort of credit for inspiring this sweet custom temperature controller built by Adafruit reader Mike to keep his beer-brewing fridge at a constant temperature. Like my recent project, it simultaneously controls AC-powered heating and cooling equipment to maintain a constant temperature, and is mounted in a CANTEX PVC junction box. But there the similarities pretty much end: Whereas I used a cheap off-the-shelf thermostat module from China, Mike built and programmed his own controller using an Arduino for brains, an Xbee for remote temperature control and data logging, and a cool multicolor LED display with letters that turn red when the system is heating, blue when it is cooling, and green when it is at the correct temperature.