Milesight WT101: LoRaWAN Smart-Heizkörperthermostat

function decodeUplink(input) {
  var bytes = input.bytes;
  var data = {};

  for (var i = 0; i < bytes.length; ) {
    var channel = bytes[i++];
    var type = bytes[i++];

    if (channel === 0x01 && type === 0x75) {          // battery (%)
      data.battery = bytes[i]; i += 1;
    } else if (channel === 0x03 && type === 0x67) {   // room temperature (°C)
      data.temperature = readInt16LE(bytes, i) / 10; i += 2;
    } else if (channel === 0x04 && type === 0x67) {   // target temperature (°C)
      data.target_temperature = readInt16LE(bytes, i) / 10; i += 2;
    } else if (channel === 0x05 && type === 0x92) {   // valve opening (%)
      data.valve_opening = bytes[i]; i += 1;
    } else if (channel === 0x06 && type === 0x00) {   // tamper status
      data.tamper_status = bytes[i] === 1 ? "uninstalled" : "installed"; i += 1;
    } else if (channel === 0x07 && type === 0x00) {   // open-window detection
      data.window_detection = bytes[i] === 1 ? "open" : "normal"; i += 1;
    } else if (channel === 0x09 && type === 0x90) {   // motor stroke
      data.motor_stroke = readUInt16LE(bytes, i); i += 2;
    } else if (channel === 0x0a && type === 0x00) {   // freeze protection
      data.freeze_protection = bytes[i] === 1 ? "triggered" : "normal"; i += 1;
    } else if (channel === 0x0b && type === 0x90) {   // motor current position
      data.motor_position = readUInt16LE(bytes, i); i += 2;
    } else {
      break;
    }
  }
  return { data: data };
}

function readUInt16LE(b, i) {
  return ((b[i + 1] << 8) | b[i]) & 0xffff;
}
function readInt16LE(b, i) {
  var v = readUInt16LE(b, i);
  return v > 0x7fff ? v - 0x10000 : v;
}