Struggle to get binary sensor to display when using mqtt json

Configuration
1

i have a mqtt binary sensor that im trying to pull data from a json output.

so the output when listening to the sensor is:

Message 1 received on diybms2/rule at 18:32:
{
    "0": 0,
    "1": 0,
    "2": 0,
    "3": 0,
    "4": 0,
    "5": 0,
    "6": 0,
    "7": 0,
    "8": 0,
    "9": 0,
    "10": 0,
    "11": 0,
    "12": 0,
    "13": 0,
    "14": 0
}
QoS: 0 - Retain: false
Message 0 received on diybms2/output at 18:28:
{
    "0": 0,
    "1": 0,
    "2": 0,
    "3": 0
}
QoS: 0 - Retain: false

basically the 0,1,2,3,4 are the json topic and then the 0 is either 1 or 0 depending if the relay or rule is on or off

i have my mqtt binary sensors set up like:

binary_sensor:
  - name: Cell Over Volt Alarm
    state_topic: "diybms2/rule"
    value_template: "{{ value_json.3 }}"
    payload_on: "1"
    payload_off: "0"
  - name: Cell Under Volt Alarm
    state_topic: "diybms2/rule"
    value_template: "{{ value_json.4 }}"
    payload_on: "1"
    payload_off: "0"
  - name: Cell Over Temp Alarm
    state_topic: "diybms2/rule"
    value_template: "{{ value_json.7 }}"
    payload_on: "1"
    payload_off: "0"
  - name: Cell Under Temp Alarm
    state_topic: "diybms2/rule"
    value_template: "{{ value_json.8 }}"
    payload_on: "1"
    payload_off: "0"

##################Relay Trip Status#################

  - name: Shunt Trip Alarm
    state_topic: "diybms2/output"
    value_template: "{{ value_json.0 }}"
    payload_on: "1"
    payload_off: "0"

all i seem to get is unknown on the state in home assistant , ive triggered the mqtt to get the outputs to change to 1’s and still unknown

any idea as to why its not working? thanks in advance

2

Try it like this:

binary_sensor:
  - name: Cell Over Volt Alarm
    state_topic: "diybms2/rule"
    value_template: "{{ value_json.3 }}"
    payload_on: 1
    payload_off: 0

Or this:

binary_sensor:
  - name: Cell Over Volt Alarm
    state_topic: "diybms2/rule"
    value_template: "{{ value_json['3'] }}"
    payload_on: 1
    payload_off: 0
1 Like
3 
binary_sensor:
  - name: Cell Over Volt Alarm
    state_topic: "diybms2/rule"
    value_template: "{{ value_json['3'] }}"
    payload_on: 1
    payload_off: 0

this was the solution , Thankyou for the help :smiley:

1 Like