mirror of
https://github.com/esphome/esphome-docs.git
synced 2024-11-01 08:39:52 +01:00
87 lines
3.4 KiB
ReStructuredText
87 lines
3.4 KiB
ReStructuredText
Peacefair PZEM-004T Energy Monitor
|
|
==================================
|
|
|
|
.. seo::
|
|
:description: Instructions for setting up PZEM-004 and PZEM-004T V1 power monitors.
|
|
:image: pzem004t.svg
|
|
:keywords: PZEM-004T, PZEM-004
|
|
|
|
.. note::
|
|
|
|
This page is incomplete and could use some work. If you want to contribute, please read the
|
|
:doc:`contributing guide </guides/contributing>`. This page is missing:
|
|
|
|
- An image for the front page.
|
|
- Images/screenshots/example configs of this device being used in action.
|
|
|
|
The ``pzem004t`` sensor platform allows you to use PZEM-004 (version with 8-segment screens, `website <https://www.instructables.com/Power-Peacefair-PZEM-004-ESP8266-Arduino-Nano/>`__) and PZEM-004T V1 energy monitors
|
|
(`website <https://innovatorsguru.com/ac-digital-multifunction-meter-using-pzem-004t/>`__) sensors with
|
|
ESPHome.
|
|
|
|
.. warning::
|
|
|
|
This page refers to version V1 of the PZEM-004T, which has been out of stock for a while.
|
|
The PZEM-004, however, is still working (and selling) with this protocol and does not use modbus.
|
|
For using the newer V3 variant of this sensor please see :doc:`pzemac <pzemac>`.
|
|
|
|
The communication with this integration is done over a :ref:`UART bus <uart>`.
|
|
You must therefore have a ``uart:`` entry in your configuration with both the TX and RX pins set
|
|
to some pins on your board and the baud rate set to 9600.
|
|
|
|
.. code-block:: yaml
|
|
|
|
# Example configuration entry
|
|
uart:
|
|
tx_pin: D1
|
|
rx_pin: D2
|
|
baud_rate: 9600
|
|
|
|
sensor:
|
|
- platform: pzem004t
|
|
current:
|
|
name: "PZEM-004T Current"
|
|
voltage:
|
|
name: "PZEM-004T Voltage"
|
|
power:
|
|
name: "PZEM-004T Power"
|
|
energy:
|
|
name: "PZEM-004T Energy"
|
|
update_interval: 60s
|
|
|
|
Configuration variables:
|
|
------------------------
|
|
|
|
- **current** (*Optional*): Use the current value of the sensor in amperes. All options from
|
|
:ref:`Sensor <config-sensor>`.
|
|
- **power** (*Optional*): Use the (active) power value of the sensor in watts. All options from
|
|
:ref:`Sensor <config-sensor>`.
|
|
- **voltage** (*Optional*): Use the voltage value of the sensor in volts.
|
|
All options from :ref:`Sensor <config-sensor>`.
|
|
- **update_interval** (*Optional*, :ref:`config-time`): The interval to check the
|
|
sensor. Defaults to ``60s``.
|
|
- **uart_id** (*Optional*, :ref:`config-id`): Manually specify the ID of the :ref:`UART Component <uart>` if you want
|
|
to use multiple UART buses.
|
|
|
|
Hardware considerations:
|
|
------------------------
|
|
These devices have optocouplers on the UART port and the resistors mounted on the board have been designed to work with 5V devices.
|
|
ESPs need a `Level Shifter <https://www.adafruit.com/product/1875>`__ to be compatible with TTL levels.
|
|
|
|
.. note::
|
|
|
|
You need a IC level shifter and not a `Mosfet-based <https://www.sparkfun.com/products/12009>`__ level shifter, because you need
|
|
to power the optocoupler's LEDs without an additional resistor in the path.
|
|
|
|
If prefer, you could change the value of the optocoupler's resistors by following `this <https://gregwareblog.wordpress.com/2020/12/13/home-power-monitoring-pzem-004/>`__ or `this <https://www.instructables.com/Power-Peacefair-PZEM-004-ESP8266-Arduino-Nano/>`__ guide.
|
|
|
|
Your ESP shall be powered by an external power supply and cannot be connected to the PZEM for power.
|
|
|
|
See Also
|
|
--------
|
|
|
|
- :ref:`sensor-filters`
|
|
- :doc:`pzemac`
|
|
- :doc:`pzemdc`
|
|
- :apiref:`pzem004t/pzem004t.h`
|
|
- :ghedit:`Edit`
|