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

Bluetooth Sensors for Signalk - see https://www.npmjs.com/package/bt-sensors-plugin-sk#supported-sensors for a list of supported sensors

const VictronSensor = require ("./Victron/VictronSensor.js") 
const VC = require("./Victron/VictronConstants.js")
class VictronSolarCharger extends VictronSensor{

    static ImageFile="VictronSmartSolarMPPT.webp"

    initSchema() {
        super.initSchema()
        this.addDefaultParam("id")
    
        this.addMetadatum('chargeState','', 'charge state', 
        (buff)=>{return VC.OperationMode.get(buff.readUInt8(0))})
        .default="electrical.solar.{id}.state"
    
        this.addMetadatum('chargerError','', 'charger error',
            (buff)=>{return VC.ChargerError.get(buff.readUInt8(1))})
            .default="electrical.solar.{id}.error"

        this.addMetadatum('voltage','V', 'charger battery voltage', 
            (buff)=>{return this.NaNif(buff.readInt16LE(2),0x7FFF)/100})
            .default="electrical.solar.{id}.dc.voltage"

        this.addMetadatum('current','A','charger battery current', 
            (buff)=>{return this.NaNif(buff.readInt16LE(4),0x7FFF)/10})
            .default="electrical.solar.{id}.dc.current"

        this.addMetadatum('yield','Wh', 'yield today in Watt-hours', 
            (buff)=>{return this.NaNif(buff.readUInt16LE(6),0xFFFF)*10})
            .default="electrical.solar.{id}.yieldToday"

        this.addMetadatum('solarPower','W', 'solar power', 
            (buff)=>{return this.NaNif(buff.readUInt16LE(8),0xFFFF)})   
            .default="electrical.solar.{id}.panelPower" 
       
        this.addMetadatum('externalDeviceLoad','A', 'external device load', 
            (buff)=>{return this.NaNif(buff.readUInt16LE(10)&0x1FF,0x1FF)/10})
            .default="electrical.solar.{id}.loadCurrent" 
  
    }

}
module.exports=VictronSolarCharger