scaleExtendedRegisters static method

Map<String, double> scaleExtendedRegisters(List<int> raw)

Scale 7 raw register values into physical quantities.

Register order: moisture, temperature, conductivity, pH, N, P, K

Implementation

static Map<String, double> scaleExtendedRegisters(List<int> raw) {
  assert(raw.length >= 7);

  // Temperature is INT16 — apply two's complement if high bit set.
  int rawTemp = raw[1];
  if (rawTemp & 0x8000 != 0) rawTemp -= 0x10000;

  return {
    'moisture': raw[0] / 10.0,
    'temperature': rawTemp / 10.0,
    'conductivity': raw[2].toDouble(),
    'ph': raw[3] / 10.0,
    'nitrogen': raw[4].toDouble(),
    'phosphorus': raw[5].toDouble(),
    'potassium': raw[6].toDouble(),
  };
}