⬆️MClimate HT Display lite Uplink decoder
Decoder (JavaScript ES5):
function decodeUplink(input) {
try{
var bytes = input.bytes;
var data = {};
const toBool = value => value == '1';
var calculateTemperature = function (rawData){return (rawData - 400) / 10};
var calculateHumidity = function(rawData){return (rawData * 100) / 256};
function handleKeepalive(bytes, data){
var tempRaw = (bytes[1] << 8) | bytes[2];
var temperatureValue = calculateTemperature(tempRaw);
var humidityValue = calculateHumidity(bytes[3]);
var lux = (bytes[4] << 8) | bytes[5];
let batteryVoltageCalculated = ((bytes[6] << 8) | bytes[7])/1000;
var powerSourceStatus = parseInt(bytes[8], 16);
data.sensorTemperature = Number(temperatureValue.toFixed(2));
data.relativeHumidity = Number(humidityValue.toFixed(2));
data.batteryVoltage = Number(batteryVoltageCalculated.toFixed(3));
data.powerSourceStatus = powerSourceStatus;
data.lux = lux;
return data;
}
function handleResponse(bytes, data){
var commands = bytes.map(function(byte){
return ("0" + byte.toString(16)).substr(-2);
});
commands = commands.slice(0,-9);
var command_len = 0;
commands.map(function (command, i) {
console.log(command)
switch (command) {
case '04':
{
command_len = 2;
var hardwareVersion = commands[i + 1];
var softwareVersion = commands[i + 2];
data.deviceVersions = { hardware: Number(hardwareVersion), software: Number(softwareVersion) };
}
break;
case '12':
{
command_len = 1;
data.keepAliveTime = parseInt(commands[i + 1], 16);
}
break;
case '14':
{
command_len = 1;
data.childLock = toBool(parseInt(commands[i + 1], 16)) ;
}
break;
case '19':
{
command_len = 1;
var commandResponse = parseInt(commands[i + 1], 16);
var periodInMinutes = commandResponse * 5 / 60;
data.joinRetryPeriod = periodInMinutes;
}
break;
case '1b':
{
command_len = 1;
data.uplinkType = parseInt(commands[i + 1], 16) ;
}
break;
case '1d':
{
command_len = 2;
var wdpC = commands[i + 1] == '00' ? false : parseInt(commands[i + 1], 16);
var wdpUc = commands[i + 2] == '00' ? false : parseInt(commands[i + 2], 16);
data.watchDogParams= { wdpC: wdpC, wdpUc: wdpUc } ;
}
break;
case '34':
{
command_len = 1;
data.displayRefreshPeriod = parseInt(commands[i + 1], 16) ;
}
break;
case '41':
{
command_len = 1;
data.currentTemperatureVisibility = parseInt(commands[i + 1], 16) ;
}
break;
case '43':
{
command_len = 1;
data.humidityVisibility = parseInt(commands[i + 1], 16) ;
}
break;
case '45':
{
command_len = 1;
data.lightIntensityVisibility = parseInt(commands[i + 1], 16) ;
}
break;
case '47':
{
command_len = 1;
data.measurementBlindTime = parseInt(commands[i + 1], 16) ;
}
break;
case '49':
{
command_len = 1;
data.measurementPeriod = parseInt(commands[i + 1], 16) ;
}
break;
case 'a4':
{
command_len = 1;
data.region = parseInt(commands[i + 1], 16);
}
break;
default:
break;
}
commands.splice(i,command_len);
});
return data;
}
if (bytes[0] == 1) {
data = handleKeepalive(bytes, data);
}else{
data = handleResponse(bytes,data);
bytes = bytes.slice(-9);
data = handleKeepalive(bytes, data);
}
return {data: data};
} catch (e) {
console.log(e)
throw new Error('Unhandled data');
}
}DataCake Decoder
function decodeUplink(input) {
try {
var bytes = input.bytes;
var data = {};
var toBool = function (value) { return value == '1'; };
var calculateTemperature = function (rawData) { return (rawData - 400) / 10; };
var calculateHumidity = function (rawData) { return (rawData * 100) / 256; };
function handleKeepalive(bytes, data) {
var tempRaw = (bytes[1] << 8) | bytes[2];
var temperatureValue = calculateTemperature(tempRaw);
var humidityValue = calculateHumidity(bytes[3]);
var lux = (bytes[4] << 8) | bytes[5];
var batteryVoltageCalculated = ((bytes[6] << 8) | bytes[7]) / 1000;
var powerSourceStatus = parseInt(bytes[8], 16);
data.sensorTemperature = Number(temperatureValue.toFixed(2));
data.relativeHumidity = Number(humidityValue.toFixed(2));
data.batteryVoltage = Number(batteryVoltageCalculated.toFixed(3));
data.powerSourceStatus = powerSourceStatus;
data.lux = lux;
return data;
}
function handleResponse(bytes, data) {
var commands = bytes.map(function (byte) {
return ("0" + byte.toString(16)).substr(-2);
});
commands = commands.slice(0, -9);
var command_len = 0;
commands.map(function (command, i) {
switch (command) {
case '04':
command_len = 2;
var hardwareVersion = commands[i + 1];
var softwareVersion = commands[i + 2];
data.deviceVersions = { hardware: Number(hardwareVersion), software: Number(softwareVersion) };
break;
case '12':
command_len = 1;
data.keepAliveTime = parseInt(commands[i + 1], 16);
break;
case '14':
command_len = 1;
data.childLock = toBool(parseInt(commands[i + 1], 16));
break;
case '19':
command_len = 1;
var commandResponse = parseInt(commands[i + 1], 16);
var periodInMinutes = commandResponse * 5 / 60;
data.joinRetryPeriod = periodInMinutes;
break;
case '1b':
command_len = 1;
data.uplinkType = parseInt(commands[i + 1], 16);
break;
case '1d':
command_len = 2;
var wdpC = commands[i + 1] == '00' ? false : parseInt(commands[i + 1], 16);
var wdpUc = commands[i + 2] == '00' ? false : parseInt(commands[i + 2], 16);
data.watchDogParams = { wdpC: wdpC, wdpUc: wdpUc };
break;
case '34':
command_len = 1;
data.displayRefreshPeriod = parseInt(commands[i + 1], 16);
break;
case '41':
command_len = 1;
data.currentTemperatureVisibility = parseInt(commands[i + 1], 16);
break;
case '43':
command_len = 1;
data.humidityVisibility = parseInt(commands[i + 1], 16);
break;
case '45':
command_len = 1;
data.lightIntensityVisibility = parseInt(commands[i + 1], 16);
break;
case '47':
command_len = 1;
data.measurementBlindTime = parseInt(commands[i + 1], 16);
break;
case '49':
command_len = 1;
data.measurementPeriod = parseInt(commands[i + 1], 16);
break;
case 'a4':
command_len = 1;
data.region = parseInt(commands[i + 1], 16);
break;
default:
break;
}
commands.splice(i, command_len);
});
return data;
}
if (bytes[0] == 1) {
data = handleKeepalive(bytes, data);
} else {
data = handleResponse(bytes, data);
bytes = bytes.slice(-9);
data = handleKeepalive(bytes, data);
}
return { data: data };
} catch (e) {
console.log(e);
throw new Error('Unhandled data');
}
}
function Decoder(payload, port) {
var decoded = decodeUplink({ bytes: payload, fPort: port }).data;
// Extract Gateway Information
try {
decoded.LORA_RSSI = (!!normalizedPayload.gateways && !!normalizedPayload.gateways[0] && normalizedPayload.gateways[0].rssi) || 0;
decoded.LORA_SNR = (!!normalizedPayload.gateways && !!normalizedPayload.gateways[0] && normalizedPayload.gateways[0].snr) || 0;
decoded.LORA_DATARATE = normalizedPayload.data_rate;
} catch (e) {
console.log(JSON.stringify(e));
}
// Array where we store the fields that are being sent to Datacake
var datacakeFields = [];
// Take each field from decoded and convert them to Datacake format
for (var key in decoded) {
if (decoded.hasOwnProperty(key)) {
datacakeFields.push({ field: key.toUpperCase(), value: decoded[key] });
}
}
// Forward data to Datacake
return datacakeFields;
}Last updated