I'm wondering if there has been any issue with the code that is posted on GitHub.
None that we are aware of. But recent changes in the Arduino IDE have broken other libraries, so if you see a problem, let us know.
I ask because I tried to upload the .io file onto my Arduino Uno and I kept getting an error message.
What is the error message?
Do I have to upload the libraries AND the code?
Yes. The library links are are here in the guide:
https://learn.adafruit.com/sous-vide-po ... -downloads
Libraries should be installed as described in this guide:
http://learn.adafruit.com/adafruit-all- ... nstall-use