This is a project that aims to control a food cooking system of some sort.
Frying a turkey? Look no further. Brewing beer? Right here. Smoking a stuff or thing? Boom. This'll get er' done.
The raspberry pi part of the code runs in python. It senses cooking fluid (air, oil, whatever,) temperature using a Type-K thermocouple, and turns on or off a relay that runs your heat system to keep everything toasty.
The Android part runs on your phone or tablet to change heating setpoints and graph the current temps and whatnot.
- MAX6675 SPI-connected Type-K Thermocouple Interface (two of them, one for the cooking fluid, one for the food.)
- Type-K Thermocouple (again, two of them.)
- got mine here: http://www.amazon.com/gp/product/B00843IKWK/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
- they get angry if you let their sheaths touch. pick up some shrinkwrap to insulate them.
- Some relay module appropriate for your heater.
- Other stuff:
- Dry boxes are nice. I like this one: http://www.amazon.com/gp/product/B002KENWZY/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
- If you use a wifi dongle w/ your pi, you might want a powered USB hub.
For frying a turkey, I use a burner control system inspired by this page: http://www.homebrewtalk.com/f253/gas-temperature-control-dummies-116632/
The system is a Honeywell burner controller driving an low pressure LP burner.
- Honeywell Y8610U controller/valve (includes LP conversion, be sure to install it.)
- bought new old stock on eBay
- Honeywell Q345A1313 pilot assy (includes LP conversion, be sure to install it.)
- bought new on eBay
- 24VAC transformer
- Camco LP Regulator
- Big 32-jet LP Burner
- Camco LP Tank-To-Regulator
- Some flex tubing