bt-sensors-plugin-sk/sensor_classes/VictronSolarCharger.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 VictronSensor = require ("./Victron/VictronSensor.js") 
const VC = require("./Victron/VictronConstants.js")
class VictronSolarCharger extends VictronSensor{

    static async identify(device){
        return await this.identifyMode(device, 0x01)
    }   

    async init() {
        await super.init()
        this.initMetadata()
    }
    initMetadata() { 
    this.addMetadatum('chargeState','', 'charge state', 
        (buff)=>{return VC.OperationMode.get(buff.readUInt8(0))})
    this.addMetadatum('chargerError','', 'charger error',
        (buff)=>{return VC.ChargerError.get(buff.readUInt8(1))})
    this.addMetadatum('voltage','V', 'charger battery voltage', 
        (buff)=>{return this.NaNif(buff.readInt16LE(2),0x7FFF)/100})
    this.addMetadatum('current','A','charger battery current', 
        (buff)=>{return this.NaNif(buff.readInt16LE(4),0x7FFF)/10})
    this.addMetadatum('yield','Wh', 'yield today in Watt-hours', 
        (buff)=>{return this.NaNif(buff.readUInt16LE(6),0xFFFF)*10})
    this.addMetadatum('solarPower','W', 'solar power', 
        (buff)=>{return this.NaNif(buff.readUInt16LE(8),0xFFFF)})    
    this.addMetadatum('externalDeviceLoad','A', 'external device load', 
        (buff)=>{return this.NaNif(buff.readUInt16LE(10)&0x1FF,0x1FF)/10})    
    }
}
module.exports=VictronSolarCharger