OVMS3-idf/docs/en/api-reference/peripherals/temp_sensor.rst
2020-02-07 16:37:44 +11:00

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ESP32-S2 Temperature Sensor
===========================
Overview
--------
.. only:: esp32
.. note::
ESP32 does not have a built-in temperature sensor.
.. only:: esp32s2
The ESP32-S2 has a built-in temperature sensor. The temperature sensor module contains an 8-bit Sigma-Delta ADC and a temperature offset DAC.
The conversion relationship is the first columns of the table below. Among them, offset = 0 is the main measurement option, and other values are extended measurement options.
+--------+------------------------+------------------------+
| offset | measure range(Celsius) | measure error(Celsius) |
+========+========================+========================+
| -2 | 50 ~ 125 | < 3 |
+--------+------------------------+------------------------+
| -1 | 20 ~ 100 | < 2 |
+--------+------------------------+------------------------+
| 0 | -10 ~ 80 | < 1 |
+--------+------------------------+------------------------+
| 1 | -30 ~ 50 | < 2 |
+--------+------------------------+------------------------+
| 2 | -40 ~ 20 | < 3 |
+--------+------------------------+------------------------+
Application Example
-------------------
Temperature sensor reading example: :example:`peripherals/temp_sensor`.
API Reference - Normal Temp Sensor
----------------------------------
.. include-build-file:: inc/temp_sensor.inc