Uploaded September 2021 | Updated September 2026, 2 weeks ago

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Easy wireless WIFI temperature monitoring project with an ESP32 & Temperature Sensors
Buy a kit including all the parts to make this project: store.mkme.org/?product=diy-engine-doctor-esp32-egt-engine-tuning-temp-kit
Check out PCBWay pcbway.com
The original ideea is to use this for performance chainsaw tuning by monitoring the EGT (exhaust gas temp) or cylinder/head temp we have valuable information we can use to track/correlate our changes and even monitor saws with autotune or needs.

An ESP32 microcontroller with a high temp thermocouple interface you can mount in or stick to any surface you want to measure.

The ESP32 makes its own Wifi AP (shows up as Engine Doctor wifi network) you can log in to with your phone- open any browser to the IP in the pic and it will graph the data real time asynchronously on the web page as long as its powered on.

Also has a separate BME280 temp/baro and humidity sensor that will be in the box enclosure or you could remote mount it in an airbox or anywhere you desire.

Future Expansion- I may make a one-wire inductive tachometer pickup too which will be interrupt driven and may need amp circuit. All the spare GPIO are broken out on the PCB for this. Lipo battery plugs in to ESP32 and is charged by USB amzn.to/3kI5tL8

Full code and files on GitHub here: github.com/MKme/Engine-Doctor

Here is the 3rd video in the series of the cheap Remington chainsaw. This episode is where we port the muffler, tune the carb and test it out youtube.com/watch?v=cjXQleMQ4eQ&t=1s

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