I am looking for a thermostat to turn on/off a small 12 volt fan on a homemade window solar heater. I think they are called "button" type. it needs to turn on at 68-80 and off at 67. Can anyone tell me the proper name of what I am looking for and/or where to find one? Thanks
Try "Thermoswitch" or Thermal Switch" The 67 off 68 on might be a little hard to do.
Tom
You would have a better chance of success if you used a simple PICAXE microprocessor
I use a PICAXE and a DS18B20 to control a small fan in an audio/video cabinet:
The PICAXE 08M chip is about $3.50, the DS18B20 is about $4.50. You need either a breadboard or a prototype board for building the circuit (either is under $5). You need either a transistor or a relay to control the fan (under $3 each). So about $20 for a +/- 1 degree control circuit.
The software to program the PICAXE is a free download from
There's a VERY active support forum at
John
ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.