04/07/2015 at 16:56 •
Therm rev2 is up and running! I don't have any photos of it actually powered up at the moment, but I have it running a sous vide setup to verify that everything is working properly. Software has been ported to the new micro and basic temperature reporting over a USB virtual serial port works as well.
Since my new micro does not have EEPROM, I need to rewrite my save/restore functionality to read and write from flash. Once I wrap that up along with some other tweaks, therm should be completely usable!
I'll add photos of the updated design and links to source in the coming weeks.
12/01/2014 at 21:52 •
The second revision of Therm is out for fabrication! I included breakaway mounting tabs and switched to a new (smaller) processor. More updates will come soon...
09/22/2014 at 17:21 •
The first prototype therm board is up and running! I currently have it regulating the temperature on my espresso machine. Thermocouple readings seem much more stable than my last design based on the MAX6675, and a faster PID loop has greatly increased temperature stability at rest. I'll post some photos and more information soon.