Scanner rev_113

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    - Project: Scanner
    - Source Code compiled for: Arduino Mega
    - Source Code created on: 2023-11-06 23:53:40
    - Source Code generated by: AlexWind

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/****** DEFINITION OF LIBRARIES *****/
#include <Arduino.h>

/****** FUNCTION PROTOTYPES *****/
void updateInputs();
float lookupPhyDataFromVoltage(float voltage, int segmentPoints, const float* voltagePhyDataLookup);
float mapFloat(float x, float inMin, float inMax, float outMin, float outMax);
void convertInputsFromRawToPhyData();

/***** DEFINITION OF ANALOG INPUT PINS *****/
const uint8_t sensorPinA0 = A0;

/****** DEFINITION OF ANALOG INPUTS CHARACTERISTIC CURVES *****/
const uint8_t segmentPointsVoltageTemperaturePinA0 = 3;
const float voltageTemperaturePinA0Lookup[2][segmentPointsVoltageTemperaturePinA0] PROGMEM =
{
  {0.0, 2.0, 3.0},   // Voltage [V]
  {20.0, 60.0, 100.0}   // Temperature [°C]
};

/***** DEFINITION OF INPUT RAW VARIABLES *****/
unsigned int sensorPinA0RawData = 0; // Analog Input

/***** DEFINITION OF INPUT PHYSICAL VARIABLES *****/
float sensorPinA0PhyData = 0.0; // Temperature [°C]

void setup()
{
  // Put your setup code here, to run once:
  pinMode(sensorPinA0, INPUT);
  Serial.begin(9600); // Initialize serial communication
}

void loop()
{
  // Put your main code here, to run repeatedly:
  updateInputs(); // Refresh input data
  convertInputsFromRawToPhyData(); // After that updateInput function is called, so raw data are transformed into physical data according to the characteristic curve

  // Check if temperature is above 100°C
  if (sensorPinA0PhyData > 100.0)
  {
    Serial.println("Temperature is above 100°C");
  }

  delay(1000); // Wait for 1 second before repeating the loop
}

void updateInputs()
{
  sensorPinA0RawData = analogRead(sensorPinA0);
}

float lookupPhyDataFromVoltage(float voltage, int segmentPoints, const float* voltagePhyDataLookup)
{
  // Search table for appropriate value.
  uint8_t index = 0;

  const float *voltagePointer = &voltagePhyDataLookup[0];
  const float *phyDataPointer = &voltagePhyDataLookup[segmentPoints];

  // Perform minimum and maximum voltage saturation based on characteristic curve
  voltage = min(voltage, voltagePointer[segmentPoints - 1]);
  voltage = max(voltage, voltagePointer[0]);

  while (pgm_read_float(voltagePointer[index]) <= voltage && index < segmentPoints)
    index++;

  // If index is zero, physical value is smaller than our table range
  if (index == 0)
  {
    return mapFloat(voltage,
                    pgm_read_float(voltagePointer[0]),   // X1
                    pgm_read_float(voltagePointer[1]),   // X2
                    pgm_read_float(phyDataPointer[0]),   // Y1
                    pgm_read_float(phyDataPointer[1])); // Y2
  }
  // If index is maxed out, physical value is larger than our range.
  else if (index == segmentPoints)
  {
    return mapFloat(voltage,
                    pgm_read_float(voltagePointer[segmentPoints - 2]),   // X1
                    pgm_read_float(voltagePointer[segmentPoints - 1]),   // X2
                    pgm_read_float(phyDataPointer[segmentPoints - 2]),   // Y1
                    pgm_read_float(phyDataPointer[segmentPoints - 1])); // Y2
  }
  // index is between 0 and max, just right
  else
  {
    return mapFloat(voltage,
                    pgm_read_float(voltagePointer[index - 1]), // X1
                    pgm_read_float(voltagePointer[index]),    // X2
                    pgm_read_float(phyDataPointer[index - 1]), // Y1
                    pgm_read_float(phyDataPointer[index]));  // Y2
  }
}

float mapFloat(float x, float inMin, float inMax, float outMin, float outMax)
{
  return (x - inMin) * (outMax - outMin) / (inMax - inMin) + outMin;
}

void convertInputsFromRawToPhyData()
{
  float voltage = 0.0;

  voltage = sensorPinA0RawData * (5.0 / 1023.0);
  sensorPinA0PhyData = lookupPhyDataFromVoltage(voltage, segmentPointsVoltageTemperaturePinA0, &(voltageTemperaturePinA0Lookup[0][0]));
}