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157 lines
5.1 KiB
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157 lines
5.1 KiB
ReStructuredText
Peacefair PZEM-004T V3 Energy Monitor
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=====================================
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.. seo::
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:description: Instructions for setting up PZEM-004T power monitors.
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:image: pzem-ac.jpg
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:keywords: PZEM-004T V3
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.. note::
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This page is incomplete and could use some work. If you want to contribute, please read the
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:doc:`contributing guide </guides/contributing>`. This page is missing:
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- Images/screenshots/example configs of this device being used in action.
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The ``pzemac`` sensor platform allows you to use PZEM-004T V3 energy monitors
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(`website <https://innovatorsguru.com/pzem-004t-v3/>`__,
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`datasheet <https://innovatorsguru.com/wp-content/uploads/2019/06/PZEM-004T-V3.0-Datasheet-User-Manual.pdf>`__)
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with ESPHome.
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The sensor can be connected in various configurations - please see the `manufacturer's website <https://innovatorsguru.com/pzem-004t-v3/>`__
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for more information.
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.. figure:: images/pzem-ac.png
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:align: center
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:width: 80.0%
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PZEM-004T Version 3.
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.. warning::
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This page refers to version V3 of the PZEM004T.
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For using the older V1 variant of this sensor please see :doc:`pzem004t <pzem004t>`.
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The communication with this integration is done over a :ref:`UART bus <uart>` using :ref:`Modbus <modbus>`.
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You must therefore have a ``uart:`` entry in your configuration with both the TX and RX pins set
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to some pins on your board and the baud rate set to 9600.
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.. code-block:: yaml
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# Example configuration entry
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uart:
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rx_pin: D1
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tx_pin: D2
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baud_rate: 9600
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modbus:
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sensor:
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- platform: pzemac
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current:
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name: "PZEM-004T V3 Current"
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voltage:
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name: "PZEM-004T V3 Voltage"
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energy:
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name: "PZEM-004T V3 Energy"
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power:
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name: "PZEM-004T V3 Power"
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frequency:
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name: "PZEM-004T V3 Frequency"
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power_factor:
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name: "PZEM-004T V3 Power Factor"
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update_interval: 60s
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Configuration variables:
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------------------------
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- **current** (*Optional*): Use the current value of the sensor in amperes. All options from
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:ref:`Sensor <config-sensor>`.
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- **energy** (*Optional*): Use the (active) energy value of the sensor in watt*hours. All options from
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:ref:`Sensor <config-sensor>`.
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- **power** (*Optional*): Use the (active) power value of the sensor in watts. All options from
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:ref:`Sensor <config-sensor>`.
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- **voltage** (*Optional*): Use the voltage value of the sensor in volts.
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All options from :ref:`Sensor <config-sensor>`.
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- **frequency** (*Optional*): Use the frequency value of the sensor in hertz.
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All options from :ref:`Sensor <config-sensor>`.
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- **power_factor** (*Optional*): Use the power factor value of the sensor.
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All options from :ref:`Sensor <config-sensor>`.
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- **update_interval** (*Optional*, :ref:`config-time`): The interval to check the
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sensor. Defaults to ``60s``.
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- **address** (*Optional*, int): The address of the sensor if multiple sensors are attached to
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the same UART bus. You will need to set the address of each device manually. Defaults to ``1``.
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- **modbus_id** (*Optional*, :ref:`config-id`): Manually specify the ID of the Modbus hub.
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.. _pzemac-reset_energy_action:
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``pzemac.reset_energy`` Action
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******************************
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This action resets the total energy value of the pzemac device with the given ID when executed.
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.. code-block:: yaml
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on_...:
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then:
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- pzemac.reset_energy: pzemac_1
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Changing the address of a PZEM-004T:
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------------------------------------
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You can use the following configuration to change the address of a sensor.
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You must set the ``address`` of the ``modbus_controller`` to the current address, and ``new_address`` of the ``on_boot`` lambda to the new one.
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.. warning::
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This should be used only once! After changing the address, this code should be removed from the ESP before using the actual sensor code.
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.. code-block:: yaml
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esphome:
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...
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on_boot:
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## configure controller settings at setup
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## make sure priority is lower than setup_priority of modbus_controller
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priority: -100
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then:
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- lambda: |-
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auto new_address = 0x03;
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if(new_address < 0x01 || new_address > 0xF7) // sanity check
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{
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ESP_LOGE("ModbusLambda", "Address needs to be between 0x01 and 0xF7");
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return;
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}
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esphome::modbus_controller::ModbusController *controller = id(pzem);
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auto set_addr_cmd = esphome::modbus_controller::ModbusCommandItem::create_write_single_command(
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controller, 0x0002, new_address);
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delay(200) ;
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controller->queue_command(set_addr_cmd);
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ESP_LOGI("ModbusLambda", "PZEM Addr set");
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modbus:
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send_wait_time: 200ms
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id: mod_bus_pzem
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modbus_controller:
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- id: pzem
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## the current device addr
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address: 0x1
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modbus_id: mod_bus_pzem
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command_throttle: 0ms
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setup_priority: -10
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update_interval: 30s
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See Also
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--------
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- :ref:`sensor-filters`
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- :doc:`pzem004t`
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- :doc:`pzemdc`
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- :apiref:`pzemac/pzemac.h`
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- :ghedit:`Edit`
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