Hydreon Rain Sensor

The hydreon_rgxx sensor platform allows you to use rain sensors by Hydreon. Currently supported are the RG-9 and RG-15 sensors (model comparison).

These optical rain sensors use a UART connection at 3.3V. The UART is required to be set up in your configuration for this sensor to work.

Supported firmware versions:

  • RG-15: v1.000

  • RG-9: v1.000, v1.100, v1.200

Device FAQ: https://rainsensors.com/support/rg-9-rg-15-faq/

../../_images/hydreon_rg9_full.jpg

Hydreon RG-9 Rain Sensor. Image by Hydreon.

# Example RG-9 entry

uart:
  rx_pin: GPIO16
  tx_pin: GPIO17
  baud_rate: 9600

sensor:
  - platform: hydreon_rgxx
    model: "RG_9"
    id: "hydreon_1"
    update_interval: 20s
    disable_led: false
    moisture:
      name: "Rain Level"
    temperature:
      name: "Device Temperature"

binary_sensor:
  - platform: hydreon_rgxx
    hydreon_rgxx_id: "hydreon_1"
    too_cold:
      entity_category: diagnostic
      name: "Temperature Status"
    lens_bad:
      entity_category: diagnostic
      name: "Lens Status"
    em_sat:
      entity_category: diagnostic
      name: "Emitter Saturation"

# Example RG-15 entry

uart:
  rx_pin: GPIO16
  tx_pin: GPIO17
  baud_rate: 9600

sensor:
  - platform: hydreon_rgxx
    model: "RG_15"
    update_interval: 60s
    acc:
      name: "rain"
    event_acc:
      name: "rain event"
    total_acc:
      name: "rain total"
    r_int:
      name: "rain intensity"

Configuration variables:

  • model (Required, string): Specify which rain sensor you have connected. Must be either RG_9 or RG_15.

  • disable_led (Optional): Disables the on-board LED. Defaults to false. Only on RG-9 firmware version 1.200-onwards.

  • uart_id (Optional, ID): Manually specify the ID of the UART Component if you want to use multiple UART buses.

  • moisture (Optional): Rain intensity level from 0-7 (more detail). Only on RG-9.

    • name (Required, string): The name for the sensor.

    • id (Optional, ID): Set the ID of this sensor for use in lambdas.

    • All other options from Sensor.

  • temperature (Optional): Device internal temperature in Celsius. Accuracy is ±5°C. Only on RG-9 firmware version 1.100-onwards.

    • name (Required, string): The name for the sensor.

    • id (Optional, ID): Set the ID of this sensor for use in lambdas.

    • All other options from Sensor.

  • acc (Optional): Amount of rain since last message (see update_interval), in mm. Only on RG-15.

    • name (Required, string): The name for the sensor.

    • id (Optional, ID): Set the ID of this sensor for use in lambdas.

    • All other options from Sensor.

  • event_acc (Optional): Amount of rain for this event (i.e. since it last stopped raining), in mm. Only on RG-15.

    • name (Required, string): The name for the sensor.

    • id (Optional, ID): Set the ID of this sensor for use in lambdas.

    • All other options from Sensor.

  • total_acc (Optional): Total amount of rain this sensor has ever measured, in mm. Only on RG-15.

    • name (Required, string): The name for the sensor.

    • id (Optional, ID): Set the ID of this sensor for use in lambdas.

    • All other options from Sensor.

  • r_int (Optional): Current rain intensity in mm/h. Only on RG-15.

    • name (Required, string): The name for the sensor.

    • id (Optional, ID): Set the ID of this sensor for use in lambdas.

    • All other options from Sensor.

  • update_interval (Optional, Time): The interval to check the sensor. Defaults to 60s.

See Also