Added all 6 thermistors and cleaned up the AnalogRef file

src/Tools/AnalogRef.h

@@ -9,43 +9,40 @@ class AnalogRef
 private:
   float systemVoltage; // Reference voltage in volts
 
-  boolean systemVolatgeBelow4_5V = false;
   uint8_t voltageRefPin = 27;
-
   uint8_t voltageInPin = 28;
 
 public:
   float sysVoltage;
   float sysMultiplyer;
-  float outputVoltage;
-  float outputVoltageMultiplyer;
-  float differenceMultiplyer;
+  float inputVoltage;
+
+  //Set what the system voltage SHOULD be
   AnalogRef(float systemVoltage)
   {
     this->systemVoltage = systemVoltage;
   }
 
+
+  //Calculate the system voltage
   float calculateSystemVoltage()
   {
-    const uint8_t sampleCount = 1;
-
+    const uint8_t SAMPLE_COUNT = 1;
+    const float VOLTAGE_REF = 1023.0;
     uint16_t rawValue = 0;
-
-    for (size_t i = 0; i < sampleCount; ++i)
+    for (size_t i = 0; i < SAMPLE_COUNT; ++i)
     {
       rawValue += analogRead(voltageRefPin);
     }
 
-    const float voltageRef = 1023.0;
-    const float systemVoltage = 5.0;
-    const float systemVoltageOut = rawValue / sampleCount * systemVoltage / voltageRef;
-    const float voltage5V = 2.5 / systemVoltageOut * systemVoltage;
-
-    systemVolatgeBelow4_5V = voltage5V < 4.5;
+    float meanRawValue = (float)rawValue / SAMPLE_COUNT;
+    float outputVoltage = meanRawValue / VOLTAGE_REF * systemVoltage;
+    float voltage5V = 2.5 / outputVoltage * systemVoltage;
 
     return voltage5V;
   }
 
+  //Used for external voltage readings not powered by the 5V system
   float calculateSystemVoltageMultyplyer()
   {
 
@@ -58,6 +55,8 @@ public:
     return voltage_5V_multiplyer;
   }
 
+
+  //Calculate the input voltage of the power supply
   float calculateInputVoltage()
   {
 
@@ -80,12 +79,7 @@ public:
     return vOut * 5.8;
   }
 
-  void calculate()
-  {
 
-    sysVoltage = calculateSystemVoltage();
-    sysMultiplyer = 5 / sysVoltage;
-  }
 };
 
 #endif // ANALOGREF_H

src/Tools/Thermistor.cpp

@@ -72,9 +72,7 @@ void Thermistor::calculateCoefficents(float resistance, TempCalibration calibrat
 float Thermistor::getResistance()
 {
 
-    analogRef.calculate();
-
-    float systemVoltage = analogRef.sysVoltage;
+    float systemVoltage = analogRef.calculateSystemVoltage();
 
     int raw = analogRead(thermistorPin);
 
@@ -84,9 +82,7 @@ float Thermistor::getResistance()
     // Serial.println(vOut);
     buffer = (systemVoltage / vOut) - 1;
     
-    // Serial.println(R2);
     // return the resistence
-
     sensorResistance = setRes * buffer;
 
     return sensorResistance;

src/main.cpp

@@ -20,7 +20,6 @@ TempCalibration calibration_100K_3950 = {25, 100000, 86, 10000, 170, 1000};
 #define TFT_DC 14
 #define MOSI 4 // MOSI
 #define SCK 6  // SCK
-
 // Create an instance of the Adafruit ST7789 class using the custom SPI pins
 Adafruit_ST7789 tft = Adafruit_ST7789(TFT_CS, TFT_DC, MOSI, SCK, TFT_RST);
 
@@ -32,6 +31,11 @@ Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
 
 // Initalize a 3950 100K thermistor with 2.5k reference resistor using the default calibration data for 100K thermistor
 Thermistor thermistor1(THERMISTOR1_PIN, 2500);
+Thermistor thermistor2(THERMISTOR2_PIN, 2500);
+Thermistor thermistor3(THERMISTOR3_PIN, 2500);
+Thermistor thermistor4(THERMISTOR4_PIN, 2500);
+Thermistor thermistor5(THERMISTOR5_PIN, 2500);
+Thermistor thermistor6(THERMISTOR6_PIN, 9000);
 
 Buttons buttons = Buttons();
 
@@ -40,18 +44,15 @@ bool yellowLedON = false;
 Button *__buttons[4] = {nullptr};
 ArduPID PID;
 
-void i2cScanner();
-
 void setup()
 {
 
-  if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C))
-  {
-    Serial.println(F("SSD1306 allocation failed"));
-    for (;;)
-      ; // Don't proceed further, loop forever
-  }
+  Serial.begin(9600);
 
+  Serial.println("Starting OLED");
+  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
+
+  //Set PWM frequency to 64 kHz
   analogWriteFrequency(64);
 
   display.setRotation(3);
@@ -59,8 +60,6 @@ void setup()
   pinMode(greenLED, OUTPUT);
   pinMode(redLED, OUTPUT);
 
-  Serial.begin(9600);
-
   Serial.println("Starting LCD");
 
   // tft.init(240, 320); // The dimensions (width and height) of your display
@@ -98,19 +97,15 @@ void loop()
   // Handle the buttons outside the main loop, only put functions in here for sanity and flow purposes
   buttons.handleButtonLeds();
 
-
-
-    /*
-    analogRef.calculate();
-
-    float sysVoltage = analogRef.sysVoltage;
+  float sysVoltage = analogRef.calculateSystemVoltage();
   float inputVoltage = analogRef.calculateInputVoltage();
+  int thermistor1Temp = thermistor1.getTemperature();
 
   // Print the system voltage on the tft
 
   display.clearDisplay();
   Serial.print("Thermistor 1: ");
-    Serial.println(thermistor1.getTemperature());
+  Serial.println(thermistor1Temp);
   char *text = "Sys V: ";
   display.setTextSize(2);
   display.setTextColor(SSD1306_WHITE);
@@ -131,8 +126,7 @@ void loop()
   display.setCursor(0, 100);
   display.println(text3);
   display.setCursor(25, 100);
-    display.println(thermistor1.getTemperature());
-
+  display.println(thermistor1Temp);
   display.display();
 
   // Serial.println("System voltage: ");
@@ -142,49 +136,4 @@ void loop()
 
   // Serial.print("Input voltage: ");
   // Serial.println(analogRef.calculateInputVoltage());
-
-    */
-}
-
-void i2cScanner()
-{
-
-  byte error, address;
-  int nDevices;
-
-  Serial.println("Scanning...");
-
-  nDevices = 0;
-  for (address = 1; address < 127; address++)
-  {
-    // The i2c_scanner uses the return value of
-    // the Write.endTransmisstion to see if
-    // a device did acknowledge to the address.
-    Wire.beginTransmission(address);
-    error = Wire.endTransmission();
-
-    if (error == 0)
-    {
-      Serial.print("I2C device found at address 0x");
-      if (address < 16)
-        Serial.print("0");
-      Serial.print(address, HEX);
-      Serial.println("  !");
-
-      nDevices++;
-    }
-    else if (error == 4)
-    {
-      Serial.print("Unknown error at address 0x");
-      if (address < 16)
-        Serial.print("0");
-      Serial.println(address, HEX);
-    }
-  }
-  if (nDevices == 0)
-    Serial.println("No I2C devices found\n");
-  else
-    Serial.println("done\n");
-
-  delay(5000); // wait 5 seconds for next scan
 }