Change state of sensor with event?

ESPHome
1

I flashed an FR Bridge 2 with ESPHome and the data is being received and displayed using the event “esphome.rf_code_received”. I have a Govee 433 MHz water sensor that sends code 006ba32 when moisture is detected and 006ba30 when the button is pushed. I’d like to have a template binary sensor that sets the state wet when the first code is received and dry when the second code is received. Like this in pseudo code:

  - name: "Laundry Moisture"
    unique_id: laundry_moisture
    device_class: moisture
    state: wet with the first code, dry with the second

Is it possible to set the state of a sensor directly from an event being fired, or do I have to have a publish event for each code in the ESPHome yaml in the RF Bridge? Thanks for any help.

2

So the data is in esphome.
Post your esphome yaml.

3

This is the RF Bridge yaml:

#Sonoff RF BridgeR2 https://www.irrgang.dev/how-to-flash-the-sonoff-rf-bridger2-with-esphome/
substitutions:
  name: rf-bridge
  friendly_name: RF Bridge

esphome:
  name: ${name}
  friendly_name: ${friendly_name}

esp8266:
  board: esp01_1m

# Enable logging
logger:
  baud_rate: 0

# Enable Home Assistant API
api:
  services:
    - service: send_rf_code
      variables:
        sync: int
        low: int
        high: int
        code: int
      then:
        - rf_bridge.send_code:
            sync: !lambda 'return sync;'
            low: !lambda 'return low;'
            high: !lambda 'return high;'
            code: !lambda 'return code;'
    - service: learn
      then:
        - rf_bridge.learn
rf_bridge:
  on_code_received:
    then:
      - homeassistant.event:
          event: esphome.rf_code_received
          data:
            sync: !lambda 'return format_hex(data.sync);'
            low: !lambda 'return format_hex(data.low);'
            high: !lambda 'return format_hex(data.high);'
            code: !lambda 'return format_hex(data.code);'

ota:
  - platform: esphome

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password
  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "${friendly_name} ESP"
    password: !secret wifi_password_2

button:
  # Restart the ESP
  - platform: restart
    name: "Restart"

uart:
  tx_pin: 1
  rx_pin: 3
  baud_rate: 19200

captive_portal:

# Sensors for ESP version and WIFI information
text_sensor:
  # ESPHome version
  - platform: version
    hide_timestamp: true
    name: "ESPHome Version"
  # IP address and connected SSID
  - platform: wifi_info
    ip_address:
      name: "IP Address"
      icon: mdi:wifi
    ssid:
      name: "Connected SSID"
      icon: mdi:wifi-strength-2

sensor:
  # WiFi signal
  - platform: wifi_signal
    name: "WiFi Signal"
    update_interval: 120s
  - platform: uptime
    name: "${friendly_name} Uptime"

binary_sensor:
  - platform: status
    name: "${friendly_name} Status"

light:
  - platform: status_led
    name: "Switch state"
    pin: GPIO13
4

I have never used RF bridge and the documentation is quite shy.
You could try something like this:

binary_sensor:
  - platform: template
    id: moisture
    name: "Moisture detected"
    

rf_bridge:
  on_code_received:
    then:
      - lambda: |-
          if (data.code == 0x006ba32) {
            id(moisture).publish_state(true);
          }
          if (data.code == 0x006ba30) {
            id(moisture).publish_state(false);
          }
1 Like
5

I added device class as moisture and this works just as I wanted. Thanks! I have five of these sensors so a lot of copy and paste. I previously had these sensors read by a rtl_433 device to MQTT, but that wasn’t very reliable. This should work better.

6

You are welcome.

For curiosity, which device you used?