gistfile1.txt

function Decoder(bytes, port) {
  // Decode an uplink message from a buffer
  // (array) of bytes to an object of fields.
  var decoded = {};

  if (port === 10) {
    decoded.pm25count = parseFloat((bytes[1] << 8) + "." + bytes[2]);
    decoded.pm10count = parseFloat((bytes[3] << 8) + "." + bytes[4]);
  }

  return decoded;
}