Zigbee2mqtt revisited: No more ugly transformations

Tutorials & Examples
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226

thanks, that worked!
i tried all kinds of combinations /set/state /state/set /set etc…but was getting some strange error in zigbee2mqtt logs until I rebooted rpi.
so, reboot + your solution worked

227

Hello mby someone have example for (items and things) to share for MOES BHT-002 thermostat, or mby some similar temperature sensor.

228

here is the things part as a file:

Thing mqtt:topic:ThermoSchlafzimmerO "ThermoSchlafzimmerO" (mqtt:broker:MosquittoMqttBroker) {Channels:
     Type number   : Temperature  "Temperature" [stateTopic="zigbee2mqtt/ThermoSchlafzimmer/local_temperature", unit="°C"]
     Type number   : SollTemp     "SollTemp"    [stateTopic="zigbee2mqtt/ThermoSchlafzimmer/current_heating_setpoint", commandTopic="zigbee2mqtt/ThermoSchlafzimmer/set/current_heating_setpoint", unit="°C"]
     Type datetime : last_seen    "last_seen"   [stateTopic="zigbee2mqtt/ThermoSchlafzimmer/last_seen"]
     Type number   : battery      "battery"     [stateTopic="zigbee2mqtt/ThermoSchlafzimmer/battery"]
}

I create the items in the UI with add equipment to model.

1 Like
229

This thread has been very helpful and helped me troubleshoot an issue I had so I thought I would dump my working solution, it may help someone else too.

Context

Zigbee2Mqtt and a Schwaiger HAL550 (GU10 RGB LED).

Thing

Bridge .... {
 Thing topic hal550_zb037 "ZigBee - ZB037 - GU10 RGBW" {
        Channels:
            Type switch : state "State" [
                stateTopic="zigbee2mqtt/ZB037/state",
                commandTopic="zigbee2mqtt/ZB037/set/state"]

            Type dimmer : brightness "Brightness" [
                stateTopic="zigbee2mqtt/ZB037/brightness",
                commandTopic="zigbee2mqtt/ZB037/set/brightness",
                min=0,
                max=254 ]

            Type color : color "Color" [
                stateTopic="zigbee2mqtt/ZB037/color",
                commandTopic="zigbee2mqtt/ZB037/set",
                colorMode="XYY",
                transformationPattern="JS:z2m_hal550_color_in.js",
                transformationPatternOut="JS:z2m_hal550_color_out.js"]

            Type dimmer : temp "Temp" [
                stateTopic="zigbee2mqtt/ZB037/color_temp",
                commandTopic="zigbee2mqtt/ZB037/set/color_temp",
                min=153,
                max=500]

            Type number : linkquality "Link Quality" [
                stateTopic="zigbee2mqtt/ZB037/linkquality"]
    }
}

Transforms

z2m_hal550_color_in.js:

// x = { "color": { "x": 0.123, "y": 0.456 }, "brightness": 50 }
// output = "0.123,0.456,50"
(function (x) {
    var o = JSON.parse(x);

    // The brightness value is received as integer 1-254 but needed as percentage 0.100
    var brightness = Math.round(o.brightness / 254 * 100);
    return o.color.x + ',' + o.color.y + ',' + brightness
})(input)

z2m_hal550_color_out.js:

// x = "0.123,0.456,50"
// output = { "color": { "x": 0.123, "y": 0.456 }, "brightness": 50 }
(
    function (x) {
        var [x, y, brightness] = x.split(',');
        x = parseFloat(x);
        y = parseFloat(y);

        // The brightness value is received as percentage but needed as integer 1-254
        brightness = brightness * 2.54;

        var payload = {
            color: {
                x,
                y
            },
            brightness
        };

        return JSON.stringify(payload);
    }
)(input)
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