alab-co2-sensor.js

const {binary, temperature, humidity, numeric} = require('zigbee-herdsman-converters/lib/modernExtend');

const definition = {
    zigbeeModel: ['Alab-CO2-1.0', 'Alab-CO2-1.1'],
    model: 'Alab-CO2-1.1',
    vendor: 'Alab',
    description: '[Zigbee CO2 Sensor](https://www.tindie.com/products/a_lab_technology/zigbee-co2-sensor-v2/)',
    extend: [
        temperature(),
        humidity(),
        numeric({
            name: 'co2',
            valueMin: 0,
            valueMax: 65535,
            valueStep: 1,
            cluster: 'msCO2',
            label: 'CO2',
            attribute: 'measuredValue',
            reporting: { min: '10_SECONDS', max: '1_HOUR', change: 50 },
            description: 'Measured value',
            unit: 'ppm',
            scale: 1,
            access: 'STATE_GET',
        }),
        binary({
            name: "calibration_nitrogen",
            valueOn: ['Start', 1],
            valueOff: ['Not started', 0],
            cluster: "msCO2",
            attribute: { ID: 0x1000, type: 0x21 },
            description: 'Perform nitrogen calibration. The device must be in a pure nitrogen atmosphere.',
        }),
        binary({
            name: "calibration_background",
            valueOn: ['Start', 1],
            valueOff: ['Not started', 0],
            cluster: "msCO2",
            attribute: { ID: 0x1001, type: 0x21 },
            description: 'Perform background calibration. For best results, the device should be placed in fresh air for 3-5 minutes.',
        }),
        binary({
            name: "abc",
            valueOn: ['Active', 1],
            valueOff: ['Disabled', 0],
            cluster: "msCO2",
            attribute: { ID: 0x1002, type: 0x21 },
            description: 'Perform background calibration. For best results, the device should be placed in fresh air for 3-5 minutes.',
        }),
        numeric({
            name: "abc_period",
            valueMin: 0,
            valueMax: 65535,
            valueStep: 1,
            cluster: "msCO2",
            attribute: { ID: 0x1003, type: 0x21 },
            description: 'Perform background calibration. For best results, the device should be placed in fresh air for 3-5 minutes.',
        }),
        numeric({
            name: "altitude",
            valueMin: 0,
            valueMax: 3000,
            valueStep: 1,
            cluster: "msCO2",
            attribute: { ID: 0x1009, type: 0x21 },
            description: 'SCD4X height above sea level. Valid input values are between 0–3000m.',
        }),
        numeric({
            name: "pressure",
            valueMin: 70000,
            valueMax: 120000,
            valueStep: 1,
            cluster: "msCO2",
            attribute: { ID: 0x1010, type: 0x23 },
            description: 'SCD4X sensor only! The default value is 101300 Pa. Valid input values are between 70000 – 120000 Pa. Overrides any pressure compensation based on a previously set sensor altitude.',
        }),
        binary({
            name: "factory_reset",
            valueOn: ['Start', 1],
            valueOff: ['Not started', 0],
            cluster: "msCO2",
            attribute: { ID: 0x1011, type: 0x10 },
            description: 'Reset SCD4X sensor!',
        }),
    ],
    meta: {},
};

module.exports = definition;

I just received a Zigbee CO2 Sensor and followed the link to this gist. It seems to be a converter for Alab-PhSensor-1.0 not the CO2 one.

I've found that revision 1 seems to be the code I need... Is that right? Also, how to trigger the background calibraiton?

I've found that revision 1 seems to be the code I need... Is that right? Also, how to trigger the background calibraiton?

Hi, you right
use: https://gist.github.com/9zigen/5219085e6d06eb53bfffc3cd064e5308

Background calibration is relevant for the CO2 sensor only.
Please write your comments in the gist at the link. Thanks!

When using ZHA on HomeAssistant readout shows 435,000,000 ppm at normal CO2 levels. Highest recorded was 65,000,000,000 ppm. No way to modify or change in HA integration.

Hi,
What version of home assistant? The sensor provide data in the form of a ppm. that is, if the carbon dioxide content in the air is 600 ppm, then the same data is sent to the coordinator or other device with direct binding.

I have submitted a request at the ZHA quirk repository zigpy/zha-device-handlers#2889 @9zigen

@frootblaster
Use this quirk
https://gist.github.com/9zigen/3ec959af5b83722563f09826cef0021e