First init.

FanControl_Simple/FanControl_Simple.ino

@@ -0,0 +1,113 @@
+#include <OneWire.h>
+#include <DallasTemperature.h>
+
+#define ONE_WIRE_BUS_CLT1 2
+#define ONE_WIRE_BUS_CLT2 3
+#define OVERRIDE_SWITCH_PIN 4
+#define FAN1_PWM_PIN 8
+#define FAN2_PWM_PIN 9
+#define POTENTIOMETER_PIN 16
+
+// Define temperature thresholds
+#define FAN_ON_TEMP 95
+#define FAN_OFF_TEMP (FAN_ON_TEMP - 10)
+#define FAN_HIGH_TEMP (FAN_ON_TEMP + 10)
+#define FAN_HIGH_DUTY_CYCLE 95
+#define FAN_LOW_DUTY_CYCLE 40
+#define OVERRIDE_DUTY_CYCLE 60
+
+// Define variables
+float temperature1 = 0;
+float temperature2 = 0;
+float averageTemp = 0;
+bool fanOverride = false;
+int fan1DutyCycle = 0;
+int fan2DutyCycle = 0;
+int overrideDutyCycle = 0;
+
+OneWire oneWire_CLT1(ONE_WIRE_BUS_CLT1);
+DallasTemperature sensor_CLT1(&oneWire_CLT1);
+
+OneWire oneWire_CLT2(ONE_WIRE_BUS_CLT2);
+DallasTemperature sensor_CLT2(&oneWire_CLT2);
+
+void setup() {
+  pinMode(OVERRIDE_SWITCH_PIN, INPUT_PULLUP);
+  pinMode(FAN1_PWM_PIN, OUTPUT);
+  pinMode(FAN2_PWM_PIN, OUTPUT);
+  // Initialize Serial for debugging
+  Serial.begin(9600);
+  // Initialize temperature sensors
+  sensor_CLT1.begin();
+  sensor_CLT2.begin();
+}
+
+void loop() {
+  // Read temperatures
+  temperature1 = readTemperature(sensor_CLT1);
+  temperature2 = readTemperature(sensor_CLT2);
+
+  // Calculate average temperature
+  averageTemp = calculateAverageTemperature();
+
+  // Check if temperatures are valid
+  if (isValidTemperature(temperature1) && isValidTemperature(temperature2)) {
+    // Determine fan duty cycle based on temperature
+    calculateFanDutyCycle(averageTemp);
+    // Check for override switch
+    if (digitalRead(OVERRIDE_SWITCH_PIN) == LOW) {
+      // Override mode
+      fanOverride = true;
+      overrideDutyCycle = map(analogRead(POTENTIOMETER_PIN), 0, 1023, 0, 100);
+      analogWrite(FAN1_PWM_PIN, overrideDutyCycle);
+      analogWrite(FAN2_PWM_PIN, overrideDutyCycle);
+    } else {
+      // Normal operation
+      fanOverride = false;
+      analogWrite(FAN1_PWM_PIN, fan1DutyCycle);
+      analogWrite(FAN2_PWM_PIN, fan2DutyCycle);
+    }
+  } else {
+    // Invalid temperatures, turn off fans
+    analogWrite(FAN1_PWM_PIN, 0);
+    analogWrite(FAN2_PWM_PIN, 0);
+  }
+
+  // Output temperature, fan status, and override duty cycle to serial
+  Serial.print("Temperature 1: ");
+  Serial.print(temperature1);
+  Serial.print("°C, Temperature 2: ");
+  Serial.print(temperature2);
+  Serial.print("°C, Average Temperature: ");
+  Serial.print(averageTemp);
+  Serial.print("°C, Fan Override: ");
+  Serial.print(fanOverride ? "ON" : "OFF");
+  if (fanOverride) {
+    Serial.print(", Override Duty Cycle: ");
+    Serial.print(overrideDutyCycle);
+    Serial.print("%");
+  }
+  Serial.println();
+  delay(1000); // Adjust delay as needed
+}
+
+float readTemperature(DallasTemperature sensor) {
+  sensor.requestTemperatures();
+  return sensor.getTempCByIndex(0);
+}
+
+float calculateAverageTemperature() {
+  return (temperature1 + temperature2) / 2;
+}
+
+bool isValidTemperature(float temp) {
+  return temp >= -20 && temp <= 130;
+}
+
+void calculateFanDutyCycle(float temp) {
+  if (temp >= FAN_ON_TEMP) {
+    fan1DutyCycle = fan2DutyCycle = (temp >= FAN_HIGH_TEMP) ? FAN_HIGH_DUTY_CYCLE : FAN_LOW_DUTY_CYCLE;
+  } else {
+    fan1DutyCycle = fan2DutyCycle = 0;
+  }
+}