Every Friday on Adafruit we do "Piday" (http://www.adafruit.com/blog/category/raspberry-pi/) a celebration of Raspberry Pi related projects and more. Here's a fun one from today 
HeaterMeter for RaspberryPi joins an Arduino / AVR ATmega328 microcontroller with OpenWrt running on a RaspberryPi $35 wonder-computer for the purpose of providing oven-like control of a charcoal BBQ grill via web interface. The microcontroller controls a fan which limits airflow to the pit, displays the current status on a character LCD, and passes the data on to the RaspberyPi which streams real-time updates to connected web browsers. The website also works on mobile browsers running Android or iOS, allowing users to unchain themselves from their grills and partake in many life-enriching activities such as
- Going to the grocery store to buy more beer
- Going to a bar to drink more beer
- Not get off the couch, where your beer is
- Possibly other non-beer related hobbies
http://tvwbb.com/showthread.php?35674-HeaterMeter-v4-0-for-RaspberyPi-Standalone
