#include <EnableInterrupt.h>     // https://www.arduino.cc/reference/en/libraries/enableinterrupt/
// For https://forum.arduino.cc/t/control-a-wind-turbine-direction-thanks-to-a-program/962692/
// with wind simulation code

#include <Servo.h>

 

unsigned long displayTimer = millis();     // Tempo pour affichage

 

#define anemometrePin A2     // Pin ou est connecté l'anémomètre

 

float anemometreKmH = 0.0;     // Vitesse du vent

const float anemometreKmHimpuls = 2.4;     // KmH par impulsion

volatile int anenometreImpulsions = 0;     // Compteur d'impulsions 1/sec = 2.4 kmH

 

unsigned long anemometreTempoStart= millis();     // Début periode de comptage

int anemometreTempo= 2;     // Période de comptage 2sec.

 

#define servoAnemoPin A0     // Pin ou est connecté le servo (Ex pluvio)

int servoPositionBas = 20;     // Position bas en degrés

int servoPositionHaut = 110;     // Position haut en degrés

 

Servo servoAnemo;  // creation de l'objet servo

int servoPosition = 0;     // Position actuelle

const float servoActionLimite = 5.0;     // Limite d'action

 

void setup()

{

  Serial.begin(9600);

 

  pinMode(anemometrePin, INPUT_PULLUP);

  enableInterrupt(anemometrePin, anemImpulsionMesure, RISING);

 

  servoAnemo.attach(servoAnemoPin);  // Attacher le servo sur la pin servoAnemoPin

 

  Serial.println("\nProchaine mesure dans " + String(anemometreTempo) + " secondes");

  servoAnemo.write(servoPositionBas);

}

int simAnalogPin = 0; // simulated anemometer ADC

void loop()
{
  simulateWind();
  // int anemometreDirectionADC = analogRead(???);
  int anemometreDirectionADC = simAnalogPin;
  if (millis() - anemometreTempoStart >= (anemometreTempo*1000))     // Toutes les anemometreTempo millisecondes
  {
    anemometreKmH = ((float)anenometreImpulsions * anemometreKmHimpuls)/(float)anemometreTempo;
    Serial.print("Vitesse " + String(anemometreKmH) + " km/h");
    anenometreImpulsions = 0;
    anemometreTempoStart = millis();
    if (anemometreKmH <= servoActionLimite)
    {
      servoPosition = servoPositionBas;
    }
    else if (anemometreKmH > servoActionLimite)
    {
      servoPosition = servoPositionHaut;
    }
    Serial.println("\tServo = " + String(servoPosition));
    servoAnemo.write(servoPosition);
  }
}

//     Traitement de l'interrupt
void anemImpulsionMesure()
{
  anenometreImpulsions ++;
}

void simulateWind(void){
  // per https://forum.arduino.cc/t/control-a-wind-turbine-direction-thanks-to-a-program/962692

  const unsigned long interval = 100UL;
  static unsigned long last = -interval;
  static int tick = 0;
  static float speed = 0;
  static float direction = 0;
  const float vaneResistanceK[] ={64.4,39.2,99.7,54.4,119.4,33.8,47.1,27.2};
  const float vanePullupK = 10;
  int dirIndex;
  float simImpulsions = 0;
  if(millis() - last >= interval){
    if( tick == 0 ){ //choose a different direction 
       speed = 0.1*random(0,1000);
       direction = random(0,359);
       dirIndex = floor(direction/45);
       Serial.print("simulateWind: ");
       Serial.print(speed);
       Serial.print("km/h, ");
       Serial.print(direction);
       Serial.print("°, simAnalogPin: ");
       Serial.print(simAnalogPin);
       Serial.println(" counts");
    }
    // update simulation time
    tick = (tick + 1) % (30000/interval) ; // every 30 seconds... 
    last += interval;
    // update sensors with simulated data:
    dirIndex = floor(direction/45);
    simImpulsions += speed * interval/ 1000 /anemometreKmHimpuls;
    noInterrupts();
    anenometreImpulsions += floor(simImpulsions);
    interrupts();
    simImpulsions -= floor(simImpulsions);
    // windvane pot per https://forum.arduino.cc/t/control-a-wind-turbine-direction-thanks-to-a-program/962692/5
    simAnalogPin= 1023*vaneResistanceK[dirIndex]/(vaneResistanceK[dirIndex]+vanePullupK);
  }
}