CSE7766 Power Sensor

The cse7766 sensor platform allows you to use your CSE7766 voltage/current and power sensors (datasheet) sensors with ESPHome. This sensor is commonly found in Sonoff POW R2.

As the communication with the CSE7766 done using UART, you need to have an UART bus in your configuration with the rx_pin connected to the CSE7766. Additionally, you need to set the baud rate to 4800.

# Example configuration entry
# Disable logging over USB
  baud_rate: 0

  rx_pin: RX
  baud_rate: 4800

  - platform: cse7766
      name: "Sonoff Pow R2 Current"
      name: "Sonoff Pow R2 Voltage"
      name: "Sonoff Pow R2 Power"


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 Sensor.
  • power (Optional): Use the (active) power value of the sensor in watts. All options from Sensor.
  • voltage (Optional): Use the voltage value of the sensor in V (RMS). All options from Sensor.
  • update_interval (Optional, Time): The interval to check the sensor. Defaults to 60s.
  • uart_id (Optional, ID): Manually specify the ID of the UART Component if you want to use multiple UART buses.