Temperature Safety Board

As the design of the UGRT rover progressed, we needed to create a system to monitor system temperatures and control the fans accordingly. One other team member and myself were tasked with creating the system. The other member worked on a redundant system of recording the actual temperatures while I worked on the central controller for the system.

Since the system had to be fairly low power and compact, I decided to use an ATTiny1604 as the microcontroller. It acts as a central hub that receives temperature data from the sensors, analyzes the data, checks for temperature sensors that failed, controls fan speed accordingly (with a pair of drv8871s), signals for a system shutdown if temperatures are extreme, and reports the current temperature data to the central computer over I2C.

In order to program the ATTiny1604, I also made a UPDI programmer based off a CH340 module.