mirror of
https://github.com/esphome/esphome-docs.git
synced 2024-11-06 09:31:39 +01:00
106 lines
3.2 KiB
ReStructuredText
106 lines
3.2 KiB
ReStructuredText
Pulse Meter Sensor
|
||
==================
|
||
|
||
.. seo::
|
||
:description: Instructions for setting up pulse meter sensors.
|
||
:image: pulse.png
|
||
|
||
The pulse meter sensor allows you to count the number and frequency of pulses on any pin. It is intended to be a drop-in replacement
|
||
for :doc:`integration sensor </components/sensor/pulse_counter>`, but offering better resolution.
|
||
It measures the time between rising edges on a pin, for each pulse it outputs the frequency in pulses/min.
|
||
|
||
.. code-block:: yaml
|
||
|
||
# Example configuration entry
|
||
sensor:
|
||
- platform: pulse_meter
|
||
pin: 12
|
||
name: "Pulse Meter"
|
||
|
||
Configuration variables:
|
||
------------------------
|
||
|
||
- **pin** (**Required**, :ref:`config-pin`): The pin to count pulses on.
|
||
- **name** (**Required**, string): The name of the sensor.
|
||
|
||
- **internal_filter** (*Optional*, :ref:`config-time`): If a pulse shorter than this
|
||
time is detected, it’s discarded and no pulse is counted. Defaults to ``13us``. For S0 pulse meters that are used to meter power consumption 50-100 ms is a reasonable value.
|
||
|
||
- **timeout** (*Optional*, :ref:`config-time`): If we don't see a pulse for this length of time, we assume 0 pulses/sec. Defaults to ``5 min``.
|
||
- **total** (*Optional*, :ref:`Sensor <config-sensor>`): An additional sensor that outputs the total number of pulses counted.
|
||
- All other options from :ref:`Sensor <config-sensor>`.
|
||
|
||
Converting units
|
||
----------------
|
||
|
||
The sensor defaults to units of “pulses/min”. You can change this by using :ref:`sensor-filters`.
|
||
For example, if you’re using the pulse meter with a photodiode to
|
||
count the light pulses on a power meter that outputs 1000 pulses per kWh,
|
||
you can use the following to output instantaneous usage in kW:
|
||
|
||
.. code-block:: yaml
|
||
|
||
# Example configuration entry
|
||
sensor:
|
||
- platform: pulse_meter
|
||
pin: 12
|
||
unit_of_measurement: 'kW'
|
||
name: 'Electricity Usage'
|
||
filters:
|
||
- multiply: 0.06
|
||
|
||
Counting total pulses
|
||
---------------------
|
||
|
||
When the total sensor is configured, pulse_meter also reports the total
|
||
number of pulses measured. When used on a power meter, this can be used to
|
||
measure the total consumed energy in kWh.
|
||
|
||
.. code-block:: yaml
|
||
|
||
# Example configuration entry
|
||
sensor:
|
||
- platform: pulse_meter
|
||
pin: 12
|
||
unit_of_measurement: 'kW'
|
||
name: 'Electricity Usage'
|
||
internal_filter: 100ms
|
||
accuracy_decimals: 3
|
||
filters:
|
||
- multiply: 0.06
|
||
total:
|
||
name: "Electricity Total"
|
||
unit_of_measurement: "kWh"
|
||
accuracy_decimals: 3
|
||
filters:
|
||
- multiply: 0.001
|
||
|
||
(Re)Setting the total pulse count
|
||
---------------------------------
|
||
|
||
Using this action, you are able to reset/set the total pulse count. This can be useful
|
||
if you would like the ``total`` sensor to match what you see on your meter you are
|
||
trying to match.
|
||
|
||
.. code-block:: yaml
|
||
|
||
on_...:
|
||
then:
|
||
- pulse_meter.set_total_pulses:
|
||
id: pulse_meter_id
|
||
value: 12345
|
||
|
||
.. note::
|
||
|
||
This value is the raw count of pulses, and not the value you see after the filters
|
||
are applied.
|
||
|
||
|
||
See Also
|
||
--------
|
||
|
||
- :ref:`sensor-filters`
|
||
- :doc:`/components/sensor/pulse_counter`
|
||
- :apiref:`pulse_meter/pulse_meter_sensor.h`
|
||
- :ghedit:`Edit`
|