60 lines
1.6 KiB
C++
60 lines
1.6 KiB
C++
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#include <Arduino.h>
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#define BASE_TEMP_SAMPLE_COUNT 10
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#define BASE_TEMP_SAMPLE_DELAY 100
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#define BIGGEST_PIN 5
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#define SMALLEST_PIN 3
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const byte sensorPin = PIN_A1;
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float baseTemp = 0;
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float getTemperature();
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void setup() {
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pinMode(LED_BUILTIN, OUTPUT);
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digitalWrite(LED_BUILTIN, HIGH);
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Serial.begin(9600);
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for (int pinNumber = SMALLEST_PIN; pinNumber < BIGGEST_PIN + 1; pinNumber++) {
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pinMode(pinNumber, OUTPUT);
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digitalWrite(pinNumber, LOW);
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}
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float sum = 0;
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for (int i = 0; i < BASE_TEMP_SAMPLE_COUNT; i++) {
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sum += getTemperature();
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delay(BASE_TEMP_SAMPLE_DELAY);
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}
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baseTemp = sum / BASE_TEMP_SAMPLE_COUNT;
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digitalWrite(LED_BUILTIN, LOW);
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}
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void loop() {
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float temp = getTemperature();
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byte pinLimit = SMALLEST_PIN;
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if (temp > baseTemp + 4) {
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pinLimit = SMALLEST_PIN + 3;
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} else if (temp > baseTemp + 2) {
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pinLimit = SMALLEST_PIN + 2;
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} else if (temp > baseTemp + 0.5) {
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pinLimit = SMALLEST_PIN + 1;
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}
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for (byte pin = SMALLEST_PIN; pin < pinLimit; pin++) {
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digitalWrite(pin, HIGH);
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}
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for (byte pin = pinLimit; pin < BIGGEST_PIN + 1; pin++) {
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digitalWrite(pin, LOW);
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}
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delay(100);
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}
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float getTemperature() {
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const int sensorVal = analogRead(sensorPin);
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// Serial.print("Valeur capteur: ");
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// Serial.print(sensorVal);
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float voltage = sensorVal / 1024.0 * 5.0;
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// Serial.print(", voltage: ");
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// Serial.print(voltage);
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float temperature = (voltage - .5) * 100;
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// Serial.print(", temperature: ");
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// Serial.println(temperature);
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return temperature;
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}
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