esphome-docs/components/sensor/cse7766.rst

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CSE7766 Power Sensor
====================
.. seo::
:description: Instructions for setting up CSE7766 power sensors for the Sonoff Pow R2
:image: cse7766.png
:keywords: cse7766, cse7759b, Sonoff Pow R2
The ``cse7766`` sensor platform allows you to use your CSE7766 voltage/current and power sensors
(`datasheet <http://dl.itead.cc/S31/CSE7766.pdf>`__) sensors with
ESPHome. This sensor is commonly found in Sonoff POW R2. CSE7759B is similar to CSE7766
and works with this integration.
As the communication with the CSE7766 done using UART, you need
to have an :ref:`UART bus <uart>` in your configuration with the ``rx_pin`` connected to the CSE7766.
Additionally, you need to set the baud rate to 4800.
.. code-block:: yaml
# Example configuration entry
# Disable logging over USB
logger:
baud_rate: 0
uart:
rx_pin: RX
baud_rate: 4800
sensor:
- platform: cse7766
current:
name: "Sonoff Pow R2 Current"
voltage:
name: "Sonoff Pow R2 Voltage"
power:
name: "Sonoff Pow R2 Power"
.. note::
The configuration above should work for Sonoff POWs (R2).
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 V (RMS).
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.
See Also
--------
- :ref:`sensor-filters`
- :apiref:`cse7766/cse7766.h`
- :ghedit:`Edit`