Kerui 433 MHz motion sensor config issue

Configuration
1

I have a Kerui motion sensor which is 433 MHz. I publish to home/rtl_433 and the following is displayed after the sensor trips. (several other items publish to this topic)

{"time" : "2019-01-24 00:26:07", "model" : "Kerui Security", "id" : 924442, "cmd" : 10, "state" : "motion"}

Not sure what to do with this info. Probably need a value_template for state: motion or something I suppose. I’ve tried and am stuck on this:

  - platform: mqtt
    name: 'Pantry Motion'
    state_topic: 'home/rtl_433'
    payload_on: 'motion'
    payload_off: ''
2

Made some progress. Got the binary_sensor to flip to on but now I don’t know how to shut it down. The MQTT dump I posted above is all. Sensor only reports on, not reset or off.

  - platform: mqtt
state_topic: home/rtl_433
name: Pantry Motion
value_template: >
  {% if value_json is defined and value_json.id == 924442 %}
    {{ value_json.state }}
  {% endif %}
payload_on: 'motion'
payload_off: 'standby'

32%20PM
32%20PM886×79 10.3 KB

3

It’s most likely the sensor only sends one signal, so, you need to create a fake off signal using an automation. See my example below. I use this for a number of 433 mhz motion sensors to reset them to off after 1 second, as they detect motion every 6 seconds.

binary_sensor.yaml

- platform: mqtt
  name: "Motion 1"
  qos: 1
  state_topic: "home/433toMQTT"
  payload_on: "2890473"
  payload_off: "2890473off"   #This is a fake 'off' payload that gets sent with an automation
  optimistic: true
  retain: false

automation.yaml

# MOTION SENSOR 1 - OFF TIMER #
- alias: Motion Sensor 1 - Off Timer
  hide_entity: true
  trigger:
    platform: state
    entity_id: binary_sensor.motion_1
    to: 'on'
    for:
      seconds: 1
  action:
    service: mqtt.publish
    data:
      topic: 'home/433toMQTT'
      payload: '2890473off'
      retain: 'true'
4

Thanks. I have a weird condition where everything rf gets published to home/rtl_433

I can’t quite nail the automation because I’m pretty sure I have to value_template or filter template and I’m not so good at that. This is a binary sensor that shows up and does trip when triggered. Just can’t get the sensor to “reset”

   - platform: mqtt
    qos: 1
    state_topic: home/rtl_433
    name: Pantry Motion
    value_template: >
      {% if value_json is defined and value_json.id == 924442 %}
        {{ value_json.state }}
      {% endif %}
    payload_on: 'motion'
    payload_off: 'motionoff'
    optimistic: true
    retain: false

Automation

automation 21:
  alias: Motion Sensor Off
  hide_entity: false
  trigger:
    platform: state
    entity_id: binary_sensor.pantry_motion
    to: 'on'
    for:
      seconds: 1
  action:
    service: mqtt.publish
    data:
      topic: 'home/rtl_433'
      payload: 'motionoff'
      retain: 'true'

The MQTT server does see the published “motionoff” but I’m certain that my value template can’t find it and I’m stumped.

5

There seems to now be an

off_delay:

variable for the MQTT Binary Sensor. I have it set up but I’m at work VPN’d into my network and I can’t test it until my daughter wakes up and moves around the house which of course could be HOURS. But I’m hopeful it might work.

6

It worked. She tripped the sensor and I watched it activate then turn off 5 seconds later. Sweet. I’m going to buy a few more of these sensors.

  - platform: mqtt
    qos: 1
    state_topic: home/rtl_433
    name: Pantry Motion
    value_template: >
      {% if value_json is defined and value_json.id == 924442 %}
        {{ value_json.state }}
      {% endif %}
    payload_on: 'motion'
    off_delay: 5
    optimistic: true
    retain: false
7

Hi John,
How you getting on with these pirs, can you recommend them?