fixed a bug, should actually work now

Changes

2 changed files (+7/-4)

• Detector_Building/.vscode/arduino.json
  • @@ -1,5 +1,6 @@
    { "sketch": "Detector_Building.ino", "port": "COM3", - "board": "arduino:avr:uno" + "board": "arduino:avr:uno", + "programmer": "AVRISP mkII" }
• Detector_Building/Detector_Building.ino
  • @@ -12,7 +12,7 @@ */
    // Constants - const bool CALIB = true; // Calibration mode + const bool CALIB = false; // Calibration mode const int LED_R = 4, LED_G = 3, LED_B = 2, THERM = 0; // Device component pins const double R_k = 10000, V_in = 5, analog_max = 1023; // Device constants
  • @@ -51,7 +51,7 @@
    // Calibration data const int n = 3, m = n / 3; // Number of data points, MUST be multiple of 3 - double V[n] = { 1.3, 3.26, 3.96 }; // Voltage measurements + double V[n] = { 2.12, 3.26, 3.96 }; // Voltage measurements double T[n] = { 22.0, 39.15, 60 }; // Temperature measurements double V_mid[m]; // Stores each piecewise segment for binary search double A[m], B[m], C[m]; // Coefficients for each piecewise component
  • @@ -137,7 +137,7 @@ }
    double R_t = R_k * (V_in / V_out - 1); // Thermistor resistance int s = 0; - while (s < m && V_out > V_mid[s + 1]) s++; // Find correct segment + while (s + 1 < m && V_out > V_mid[s + 1]) s++; // Find correct segment double logR_t = log(R_t); double K = 1.0 / (A[s] + B[s] * logR_t + C[s] * logR_t * logR_t * logR_t); // Steinhart-hart
  • @@ -171,6 +171,8 @@ Serial.print("Raw analog reading: ");
    Serial.print(V_raw); Serial.print(" Voltage (V): "); Serial.print(V_out); + //Serial.print(" Resistance (Ohms): "); + //Serial.print(R_t); Serial.print(" Temperature (°C): "); Serial.print(C); Serial.print(" Temperature (°F): "); // For reference