ΕΡΩΤΗΣΗ ΓΙΑ ΚΩΔΙΚΑ RPM PC FAN

[iordanhsp]

Λοιπον εχεις δικιο για το datasheet. ο ανεμιστήρας είναι ο Noctua NF-S12A PWM 120mm και εδώ τα χαρακτηριστικά. ο κώδικας βέβαια είναι για 490hz.

έχω καταλήξει εδώ αφου προσθεσα όσα μου ειπατε.

#include <Wire.h> 
#include <LiquidCrystal_I2C.h>
#include <TroykaDHT.h>
DHT dht(2, DHT11);
LiquidCrystal_I2C lcd(0x27,20,4);
#define TempPin A0
//gia count
const byte upButtonPin = 7;
const byte downButtonPin = 6;
int buttonPushCounter = 0;
byte upButtonState = HIGH;
byte downButtonState = HIGH;
byte prevUpButtonState = HIGH;
byte prevDownButtonState = HIGH;
//gia debunce
unsigned long lastBtnUp = 0;
unsigned long lastBtnDwn = 0;
int transInt = 50;
//gia pwm
const int fan_control_pin = 9; // Blue wire
unsigned long start_time;
int rpm;
int pwm = 0;
int count = 0;




void setup() {
  lcd.init();
  lcd.init();                  
  lcd.backlight();
  lcd.print("Jordan v1.0");
  pinMode(TempPin, INPUT);
  pinMode(upButtonPin, INPUT_PULLUP);
  pinMode(downButtonPin, INPUT_PULLUP);
  pinMode(13, OUTPUT);
  pinMode(fan_control_pin, OUTPUT);
  analogWrite(fan_control_pin, 0);
  attachInterrupt(digitalPinToInterrupt(2), counter, RISING); // Green wire
}


void loop() {
  
 int temp = ((analogRead(TempPin) * (5.0/1024))-0.5 )/0.01;
 upButtonState = digitalRead(upButtonPin); 
 downButtonState = digitalRead(downButtonPin);
  
  
     if (upButtonState == HIGH and downButtonState == HIGH and pwm == 0)
     {
       digitalWrite(13, HIGH);
          lcd.begin(16,2);
          lcd.clear();
          lcd.setCursor(0,0);
          lcd.print("pwm= 0");
          lcd.print("%");
          lcd.print("   temp=");
          lcd.setCursor(0,1);
          lcd.print("Speed=0");
          lcd.print("    ");
          lcd.print(temp);
          delay(100);
     }




 upButtonState = digitalRead(upButtonPin); 
  if (upButtonState != prevUpButtonState)
  {
    if (millis() - lastBtnUp > transInt)
    {
      if (upButtonState == LOW)
      {
        if (pwm<255) 
        { 
          pwm+=51;
          analogWrite(fan_control_pin, pwm);
          printlcd();
        }
       }
      lastBtnUp = millis();
    }
      prevUpButtonState = upButtonState;
   }


   
  downButtonState = digitalRead(downButtonPin);
  if (downButtonState != prevDownButtonState)
  {
    if(millis() - lastBtnDwn > transInt)
    {
      if (downButtonState == LOW)
      {
        if (pwm<=255 and pwm>0) 
        {
          pwm-=51;   
          analogWrite(fan_control_pin, pwm);
          printlcd();
        }
       }
      lastBtnDwn = millis();  
    }
      prevDownButtonState = downButtonState;
   }       
  
    
}
  void counter() {
    count++;
}
void printlcd() {
    int   temp = ((analogRead(TempPin) * (5.0/1024))-0.5 )/0.01;
       start_time = millis();
        count = 0;
        while((millis() - start_time) < 1000){
        }
          rpm = count * 30 / 2;
 
          lcd.begin(16,2);
          // Print a message to the LCD.
          lcd.clear();
          lcd.setCursor(0,0);
          lcd.print("pwm= ");
          lcd.print(map(pwm, 0, 255, 0, 100));
          lcd.print("%");
          lcd.print("   temp=");
          lcd.setCursor(0,1);
          lcd.print("Speed=");
          lcd.print(rpm);
          lcd.print("    ");
          lcd.print(temp);
  }

εδω μια φώτο απο tinkercad σε απλη οθόνη χωρίς ανεμιστήρα.
σχεδιο1.jpg
συγνώμη για την αναστάτωση και την ταλαιπωρία. θα το δοκιμάσω αυριο. ευχαριστώ.

Update:
Δεν δουλευει το rpm το pwm ειναι ok.