MQTT binary_sensor always shows as Unknown

Configuration
,
1

Hi, I’ve added new binary sensor via MQTT which worked fine, but I’m not able to set its status, it keeps showing status as Unknown. Could anyone take a look and suggest what might be wrong in my setup?

Here is the payload in MQTT topic homeassistant/binary_sensor/satel_zone_1/config:

{
    "device_class": "motion",
    "name": "Zone 1",
    "state_topic": "satel/zones/violation/state",
    "payload_on": true,
    "payload_off": false,
    "value_template": "{{ json_value[0] }}"
}

And here is the message in topic satel/zones/violation/state:

[
    false,
    false,
    false,
    false
]
2

It’s value_json not json_value.

3

tried that, same result :confused:

4

Apologies, you may have missed my edit:

    "value_template": "{{ value_json[0] }}"
5

Tried changing type from binary_sensor to sensor and that works fine and shows correct status True/False

don’t understand why binary_sensor doesn’t work

6

oh my, I missed that. that was of course the problem. thank you so much!