bt-sensors-plugin-sk/sensor_classes/Inkbird.js

Bluetooth Sensors for Signalk -- support for Victron devices, RuuviTag, Xiaomi, ATC and Inkbird, Ultrasonic wind meters, Mopeka tank readers, Renogy Battery and Solar Controllers, Aranet4 environment sensors, SwitchBot temp and humidity sensors, Kilovault

const BTSensor = require("../BTSensor");

class Inkbird extends BTSensor{

    static async  identify(device){

        const uuids = await this.getDeviceProp(device,'UUIDs')
        const name = await this.getDeviceProp(device,"Name")
        if ((name == 'tps' || name=='sps') && (uuids.length > 0 && uuids[0] == '0000fff0-0000-1000-8000-00805f9b34fb'))
            return  this
        else
            return null
        
    }

    async init(){
        await super.init()
        this.addMetadatum('temp','K', 'temperature')
        this.addMetadatum('battery','ratio', 'battery strength')
        if (this.getName() == 'sps'){
            this.addMetadatum('humidity','ratio', 'humidity')
        }
    }

    getManufacturer(){
        return "Shenzhen Inkbird Technology Co."
    }
    async propertiesChanged(props){
        super.propertiesChanged(props)    
        
        if (props.ManufacturerData) {
            const keys = Object.keys(this.currentProperties.ManufacturerData) 
            const key = keys[keys.length-1]
            const data = this.getManufacturerData(key)
            const key_i = parseInt(key)
            if (!data)
                throw new Error("Unable to get manufacturer data for "+this.getDisplayName())
            this.emit("temp", parseFloat((273.15+(key_i & 0x8000 ? key_i - 0x10000 : key_i)/100).toFixed(2))) ;
            this.emit('battery', data[5]/100)
            if (this.getMetadata().has('humidity')){
                this.emit("humidity", data.readUInt16LE(0)/100);
            }
        }
   }                         
}
module.exports=Inkbird