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Benno Pütz 2022-04-14 06:30:39 +02:00 committed by GitHub
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@ -76,7 +76,7 @@ To simplify this, we provide the setting ``attenuation: auto`` for an automatic/
Different ESP32-ADC behavior since 2021.11 Different ESP32-ADC behavior since 2021.11
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The ADC output reads voltage very accurately since 2021.11 where manufacturer calibration was incorporated. Before this every ESP32 would read different voltages and be largely innacurate/nonlinear. Users with a manually calibrated setup are encouraged to check their the installations to ensure proper output. The ADC output reads voltage very accurately since 2021.11 where manufacturer calibration was incorporated. Before this every ESP32 would read different voltages and be largely inaccurate/nonlinear. Users with a manually calibrated setup are encouraged to check their installations to ensure proper output.
For users that don't need a precise voltage reading, the "raw" output option allows to have the raw ADC values (0-4095 for ESP32) prior to manufacturer calibration. It is possible to get the old uncalibrated measurements with a filter multiplier: For users that don't need a precise voltage reading, the "raw" output option allows to have the raw ADC values (0-4095 for ESP32) prior to manufacturer calibration. It is possible to get the old uncalibrated measurements with a filter multiplier:
.. code-block:: yaml .. code-block:: yaml