Custom MQTT formats

Meter Key Value

The schema below mkv which is Meter Key Value will have a timestamp, meter_name and key-value pairs of the measurements of that (hardware) meter. Here the properties timestamp schema and meter_name are fixed. All the others will be dynamic, where the meter_name + key will be a separate measurement.

This schema is mainly used for cases where a single hardware device outputs multiple measurements without an easy way of splitting up the measurements in different JSON objects.

{
    "schema": "mkv",
    "timestamp": 1728633877715,
    "meter_name": "ab100sdfk1h",
    "power": 1637.859,
    "volt": 221.78,
    "battery": 33.12
}

The schema below will output the following measurement points;

• ab100sdfk1h_power

• ab100sdfk1h_volt

• ab100sdfk1h_battery