Add a PCB air temp sensor.
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skot commented
Because of #59 we're going to need a new way too measure (or approximate) chip temperature. This probably means adding a PCB air temp sensor as close to the ASIC and heatsink as possible.
a digital I2C temp sensor with the TMP75 is the most straight forward, but if there is a significant cost difference an analog temp sensor could work. We have plenty of ESP32 analog pins available.
skot commented
the BM1366 has no internal temp sensor. @benjamin-wilson moved the EMC2101 up nice and close to the ASIC and I think that's working pretty well.