ESP built-in Temperature Sensor

[lboue]

ESP built-in Temperature Sensor

Goal

Could you tell me how to read the internal temperature sensor and display it in Tasmota.

Doc

The ESP32-S2/C3/S3/C2 has a built-in temperature sensor to measure the chip’s internal temperature. The temperature sensor module contains an 8-bit Sigma-Delta ADC and a DAC to compensate for the temperature offset.

• ESP built-in Temperature Sensor Introduction
• Temperature Sensor Example

[barbudor]

The ESP32 internal temperature is now disabled by default as it is useless
If you really want that, you can enable it with SetOption146 1

https://tasmota.github.io/docs/Commands/#setoption146

[barbudor]

That's what it is intended for: checking that you ESP is not roasting
But don't pretend it is usefull for room temperature

[sfromis]

And seeing an ESP32 provide a lot lower temperature than room temperature did lower my trust in that number to be "pretty cold".

[teixeluis]

Personally never observed that with my devices

[sfromis]

I've only noticed the clearly too low value on one ESP32 (haven't looked much), but my broader experience (with devices not having much to do) is seeing rather varying deviations between devices in very similar circumstances (close to idle at room temperature).

[techman83]

Mine mostly reported that they should be on fire, so I disabled it before it was disabled by default. So far none of them are actually on fire 🤷