Today, we had a recap of what happened over the break and we took inventory of all the parts that we previously had and ones that we ordered.

Also, we started tested some of our components! Specifically, we tested some Peltier modules that we sourced from another group. As we could not source a datasheet for them, we had to test them out manually. We used our battery from MTE 380 which operates at 7.4V and the cold side of the module briefly became really cold before getting hot once the battery was removed. The hot side got really hot, which told us that 7.4V was too much juice.

Then we tested using the 3.3 V and 5V outputs from the STM32.

With this info, we have a rough range of acceptable voltages that can lead us to appropriate battery and step up/step down converters.

We also soldered some headers to our temperature sensor to get it prepped for breadboard testing with the firmware team.

Overall, very productive meeting. Testing the Peltier modules and seeing them working definitely gave us confidence for the tasks moving forward.

After the meeting, we will be ordering a promising battery that is smaller than the original selection we had and an ESD strap to protect the electronics while we work with them in the staticky wintertime.