
Check out the Atmel AVR temperature controller hack, although I made a better one last year that can be controlled via ethernet, the case looks awesome!
Wine doesn’t like subzero temperatures, and during wintertime, my “winecellar” got pretty cold.
There was an electric heating element, but the thermostat was broken, so it was either full burn or nothing.
That’s how the temperature monitor/controller came to be.
It was an obvious task for a small processor and I’ve always wanted to test the Dallas temperature sensors.
So, I designed this little device which could monitor the temperature and control the heater.
via Aboutmicrocontroller.blogspot.com
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atmel, atmel_avr, Circuits, Circuits, Cool, Cool, DoItYourself!, DoItYourself!, Educational, Educational, Hack, Hack, heating_element, Industrial, Industrial, LED, LED, Microcontroller, Microcontroller, Projects, Projects, subzero_temperatures, temperature_controller, temperature_monitor, temperature_sensors, thermostat, wine, winecellar, wintertime

Wow, check out this cool AVR ethernet weather station!
My original plan was to have sensors for temperature, air pressure and wind. I started a prototype and it worked very well except for the wind measurement part. I have written a separate article about it: wind-vane-ver01.shtml. I plan to improve the wind measurement hardware and add it at a later point in time.
For now the weather station has 2 temperature sensors and an air pressure sensor. It works reliable and precise even after several month of testing.
[via] 
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