The attic was hot. Mounting a large fan in the vent seemed to help, but it was drawing 5.5A continuously, which is too much for the thermostat/humidistat my roommate bought. He left it on all the time, which is quite a bit of wasted power. I’ve seen 1wire devices online for quite a while and I’ve always wanted to play with them. The easiest way I can afford to connect sensors to computer is with 1wire. I’ve found my excuse.
Raging Computer
Bypass The Binary Code