Arduino PID controller with relay and DS18B20

controller.ino

#include <PID_v1.h>

// Libraries for the DS18B20 sensor
#include <OneWire.h>
#include <DallasTemperature.h>

// DS18B20 on PIN 6 on the Arduino
#define ONE_WIRE_BUS 6

//Solid state relay on PIN 5 on the Arduino
#define RELAY_PIN 5

OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

//Define Variables we'll be connecting to
double Setpoint, Input, Output;

//Specify the links and initial tuning parameters
double Kp=5, Ki=3, Kd=3;
PID myPID(&Input, &Output, &Setpoint, Kp, Ki, Kd, DIRECT);

int WindowSize = 10000;
unsigned long windowStartTime;

void setup()
{
  pinMode(RELAY_PIN, OUTPUT);
  digitalWrite(RELAY_PIN, LOW);
  Serial.begin(115200);
  Serial.println("Starting");
  windowStartTime = millis();

  //initialize the variables we're linked to
  Setpoint = 68;

  //tell the PID to range between 0 and the full window size
  myPID.SetOutputLimits(0, WindowSize);

  //turn the PID on
  myPID.SetMode(AUTOMATIC);
}

void loop()
{
  sensors.requestTemperatures();
  Input = sensors.getTempCByIndex(0);
  Serial.print("Temperature: ");
  Serial.println(Input);
  myPID.Compute();

  /************************************************
   * turn the output pin on/off based on pid output
   ************************************************/
  if (millis() - windowStartTime > WindowSize)
  {
    //time to shift the Relay Window
    windowStartTime += WindowSize;
  }
  if (Output < millis() - windowStartTime) 
    digitalWrite(RELAY_PIN, HIGH);
  else 
    digitalWrite(RELAY_PIN, LOW);

}

Hy. where can i find PID_v1. h file?

@tamasdravai13 Install Arduino PID Library via library manager.
Its sources are here: https://github.com/br3ttb/Arduino-PID-Library

thank you nobodyguy ***@***.***> ezt írta (időpont: 2022. aug. 10., Sze, 13:56):

…

***@***.**** commented on this gist. ------------------------------ @tamasdravai13 <https://github.com/tamasdravai13> Install Arduino PID Library via library manager. Its sources are here: https://github.com/br3ttb/Arduino-PID-Library — Reply to this email directly, view it on GitHub <https://gist.github.com/ac286f8ccba23211c27a604f6a0f8af9#gistcomment-4262269>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AJCS2AHKWUAMUG2I5IB43ADVYOKG5ANCNFSM56EGTJPA> . You are receiving this because you were mentioned.Message ID: ***@***.***>

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