2022-12-10 08:40:57 +03:00

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# RF open/close sensor
Open/close sensor on ATmega168/328 + RF24.
## Features
1. Power consumption in sleep mode approximately 10 μA. Up to 2 years of operation on one CR2450 battery (estimated).
2. When triggered transmits the battery level charge and contact status (OPEN/CLOSE).
3. Can be used with normally closed and normally open contacts.
4. Automatic restart in case of a hang-up.
## Note
A gateway is required. For details see "RF - ESP-NOW Gateway".
## Full config example for Home Assistant
```yml
mqtt:
sensor:
- name: "NAME"
device_class: "voltage"
unit_of_measurement: "V"
state_topic: "homeassistant/rf_sensor/ID/open_close"
value_template: "{{ value_json.battery }}"
force_update: true
qos: 2
binary_sensor:
- name: "NAME"
device_class: "door"
state_topic: "homeassistant/rf_sensor/ID/open_close"
value_template: "{{ value_json.state }}"
payload_on: "OPEN"
payload_off: "CLOSE"
force_update: true
qos: 2
```