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better description and note for pulse_meter graph (#3582)

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icefest 2024-01-30 20:03:08 +11:00 committed by GitHub
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components/sensor/pulse_meter.rst
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@ -9,12 +9,14 @@ The pulse meter sensor allows you to count the number and frequency of pulses on
for the :doc:`pulse counter integration </components/sensor/pulse_counter>`.
Rather than counting pulses over a fixed time interval, the pulse meter sensor measures the time between pulses. The precise manner in which this is done depends on the ``internal_filter_mode`` option. This leads to a higher resolution, especially for low pulse rates, as the pulse counter sensor is limited by the number of pulses within a time interval.
Here's a comparison of the two sensors; both are set to an update interval of 10 seconds (using the ``update_interval`` and the ``throttle_average`` option respectively):
Here's a comparison of the two sensors. The pulse meter is the smoother line. Both are set to an update interval of 10 seconds (using the ``update_interval`` and the ``throttle_average`` option respectively):
.. figure:: /images/pulse-counter_vs_pulse-meter.png
:align: center
:width: 50.0%
Please note that it is not possible to use both of these two sensors on the same pin at the same time.
.. code-block:: yaml
# Example configuration entry