Compare commits
No commits in common. "0b8e4d3a5c86c4692087c7644e474f1da8e50e48" and "7c12ac40f84360a5181f87a76daf74f700fc88fe" have entirely different histories.
0b8e4d3a5c
...
7c12ac40f8
1 changed files with 20 additions and 84 deletions
|
@ -2,67 +2,28 @@
|
|||
#include <LiquidCrystal_I2C.h> // Support for PCF8574 --> LCD
|
||||
#include <OneWire.h> // 1-Wiresupport for DS18B20
|
||||
#include <DallasTemperature.h> // Easy reading of DS18B20
|
||||
#include <PID_v1.h> // PID-Controller
|
||||
|
||||
#define ONE_WIRE_BUS 10 // Enable 1-Wirebus on digital 10 (PB2 - Pin16)
|
||||
#define fan 8
|
||||
#define wecktopf 9
|
||||
|
||||
LiquidCrystal_I2C lcd(0x3F,20,4); // declare LCD
|
||||
OneWire oneWire(ONE_WIRE_BUS); // declare 1-Wirebus
|
||||
DallasTemperature sensors(&oneWire); // declare sensors
|
||||
|
||||
// Define variables PID is connected to
|
||||
double pidset, watertemp, output;
|
||||
|
||||
// PID adjustment
|
||||
double Kp=2, Ki=5, Kd=1;
|
||||
PID myPID(&watertemp, &output, &pidset, Kp, Ki, Kd, DIRECT);
|
||||
int WindowSize = 5000;
|
||||
unsigned long windowStartTime;
|
||||
|
||||
// Temp adjustment
|
||||
int tempset;
|
||||
float tempset;
|
||||
float watertemp;
|
||||
int poti;
|
||||
|
||||
// time
|
||||
int onesecond = 1000;
|
||||
unsigned long previousMillis;
|
||||
|
||||
|
||||
// °C for LCD
|
||||
byte customChar[8] = {
|
||||
0b01110,
|
||||
0b01010,
|
||||
0b01010,
|
||||
0b01110,
|
||||
0b00000,
|
||||
0b00000,
|
||||
0b00000,
|
||||
0b00000
|
||||
};
|
||||
|
||||
void setup() {
|
||||
|
||||
// Setup GPIO
|
||||
pinMode(wecktopf, OUTPUT); // Output "Wecktopf"
|
||||
pinMode(fan, OUTPUT); // Fan
|
||||
|
||||
pinMode(9, OUTPUT); // Output "Wecktopf"
|
||||
pinMode(8, OUTPUT); // Fan
|
||||
// Setup sensors
|
||||
sensors.begin();
|
||||
|
||||
// Setup I2C-LCD
|
||||
lcd.init();
|
||||
lcd.backlight();
|
||||
lcd.clear();
|
||||
lcd.createChar(0, customChar);
|
||||
lcd.setCursor(1, 0);
|
||||
|
||||
// Setup PID
|
||||
windowStartTime = millis();
|
||||
myPID.SetOutputLimits(0, WindowSize); //tell the PID to range between 0 and the full window size
|
||||
myPID.SetMode(AUTOMATIC); //turn the PID on
|
||||
|
||||
// Greetings
|
||||
lcd.print("Weckkubator 0.0.1");
|
||||
delay(3000);
|
||||
|
@ -71,34 +32,23 @@ void setup() {
|
|||
}
|
||||
|
||||
void loop() {
|
||||
|
||||
// run pid
|
||||
pid();
|
||||
|
||||
// update LCD
|
||||
unsigned long currentMillis = millis();
|
||||
if (currentMillis - previousMillis >= onesecond) {
|
||||
//
|
||||
settemp();
|
||||
readtemp();
|
||||
lcdoutput();
|
||||
|
||||
delay(100);
|
||||
|
||||
if (tempset >= watertemp) {
|
||||
digitalWrite(9, HIGH);
|
||||
|
||||
|
||||
}
|
||||
else {
|
||||
digitalWrite(9, LOW);
|
||||
|
||||
}
|
||||
|
||||
//------------------------------------------
|
||||
// PID-Controller
|
||||
void pid() {
|
||||
|
||||
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(wecktopf, LOW);
|
||||
else digitalWrite(wecktopf, HIGH);
|
||||
}
|
||||
|
||||
//------------------------------------------
|
||||
|
@ -118,32 +68,18 @@ void readtemp() {
|
|||
void lcdoutput() {
|
||||
// Output temperatureset
|
||||
lcd.setCursor(0, 1);
|
||||
lcd.print("set: ");
|
||||
lcd.print("s:");
|
||||
lcd.print(tempset);
|
||||
lcd.write((byte)0);
|
||||
lcd.print("C");
|
||||
|
||||
// Output watertemp
|
||||
lcd.setCursor(0, 2);
|
||||
lcd.print("temp: ");
|
||||
lcd.setCursor(9, 1);
|
||||
lcd.print("t:");
|
||||
lcd.print(watertemp);
|
||||
lcd.write((byte)0);
|
||||
lcd.print("C");
|
||||
lcd.print(" ");
|
||||
|
||||
// output PID
|
||||
lcd.setCursor (0, 3);
|
||||
lcd.print("output: ");
|
||||
lcd.print(output);
|
||||
lcd.print(" ");
|
||||
|
||||
}
|
||||
|
||||
|
||||
//------------------------------------------
|
||||
// Read Poti
|
||||
void settemp() {
|
||||
poti = analogRead(A3);
|
||||
tempset = (18+(poti*0.07)); // range between 18°C and 18+1024*0,07 (~89°C)
|
||||
pidset = tempset;
|
||||
tempset = (poti*0.1);
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue