16x Thermocouple Board

General board for logging thermocouples through an ESP32, an ADS1115, and some multiplexers. Cold junction compensation would, ideally, be done by TMP117 but those are impossible to get a hold of so I'm just using a DS18B20. Resolution is +/- 0.1°C for E-Type thermocouples and can easily read about 1,000°C and own to cryogenic temperatures. Tested it on a rocket engine and also thermal conductivity rig. I advise swapping out the push connectors for just screw terminals. I don't really like the push connectors.

Note that from 0-900°C this board will loose ~80uV to resistors so your recorded temp will drop very slightly as temp increases.