:description:Instructions for setting up BL0942 power monitors.
:image:bl0942.png
:keywords:BL0942, Aubess, Mini Smart Switch With Energy Monitor
The ``bl0942`` sensor platform allows you to use BL0942 energy monitors sensors with
ESPHome. These are used in some Tuya-devices (e.g. Aubess Tuya WiFi Mini Smart Switch With Energy Monitor)
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 4800 with 1 stop bit.
..code-block:: yaml
# Example configuration entry
uart:
id: uart_bus
tx_pin: TX
rx_pin: RX
baud_rate: 4800
stop_bits: 1
sensor:
- platform: bl0942
uart_id: uart_bus
voltage:
name: 'BL0942 Voltage'
current:
name: 'BL0942 Current'
power:
name: 'BL0942 Power'
filters:
multiply: -1
energy:
name: 'BL0942 Energy'
frequency:
name: "BL0942 Frequency"
accuracy_decimals: 2
update_interval: 60s
Configuration variables:
------------------------
-**voltage** (*Optional*): The voltage value of the sensor in Volts.
All options from :ref:`Sensor <config-sensor>`.
-**current** (*Optional*): The current value of the sensor in Amperes. All options from
:ref:`Sensor <config-sensor>`.
-**power** (*Optional*): The (active) power value of the sensor in Watts. Note that some power meters will report this in negative values (probably wired backwards), so you may want to use a filter to multiply it by -1. All options from :ref:`Sensor <config-sensor>`.
