My edited version of the LaserSafetySystem firmware by Anthony Bolgar
This is set up for the Dallas DS18B20 digital temperature sensor - a sensor you can find on ebay for like $4 with a 3ft cord that’s already waterproofed and everything. I also moved some of the pinouts due to the DallasTemperature library already using D2 (and not wanting to screw around with changing it)
https://drive.google.com/open?id=0ByxvvRr2A-puVjd1cWJDVEJxVTA