.. seo::
:description: Instructions for setting up CSE7761 power sensors for the Sonoff Dual R3 v1.x
:image: cse7761.svg
:keywords: cse7761, Sonoff Dual R3
The cse7761 sensor platform allows you to use your CSE7761 voltage/current and power sensors
with ESPHome. This sensor is commonly found in Sonoff Dual R3 v1.x.
Note
SAFETY HAZARD: Some devices such as Sonoff POWs/Shelly/etc, have the digital GND connected directly to mains voltage so the GPIOs become LIVE during normal operation. Our advice is to mark these boards to prevent any use of the dangerous digital pins.
As the communication with the CSE7761 done using UART, you need
to have an :ref:`UART bus <uart>` in your configuration with the tx_pin and rx_pin connected to the CSE7761.
Additionally, you need to set the baud rate to 38400 and parity to EVEN.
# Example configuration entry
sensor:
- platform: cse7761
voltage:
name: 'CSE7761 Voltage'
current_1:
name: 'CSE7761 Current 1'
current_2:
name: 'CSE7761 Current 2'
active_power_1:
name: 'CSE7761 Active Power 1'
active_power_2:
name: 'CSE7761 Active Power 2'Note
The configuration above should work for Sonoff Dual R3 v1.x.
- voltage (Optional): Use the voltage value of the sensor in V (RMS). All options from :ref:`Sensor <config-sensor>`.
- current_1 (Optional): Use the current value of the channel 1 in amperes. All options from :ref:`Sensor <config-sensor>`.
- current_2 (Optional): Use the current value of the channel 2 in amperes. All options from :ref:`Sensor <config-sensor>`.
- active_power_1 (Optional): Use the (active) power value of the channel 1 in watts. All options from :ref:`Sensor <config-sensor>`.
- active_power_2 (Optional): Use the (active) power value of the channel 2 in watts. 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.