this is the code with the stepper:
// Incubator code
// ---------------------------------------------
#include <LiquidCrystal.h>
#include "DHT.h"
#define DHTPIN 2 // Define the temp sensor data pin
#define DHTTYPE DHT22 // define the temp/hum sensor type
#define RELAY 0 // define the relay control pin
#include <Stepper.h>
#define STEPS_PER_MOTOR_REVOLUTION 32 //define the number of steps per motor revolution
// #define STEPS_PER_OUTPUT_REVOLUTION 32 * 64
#define STEPS_PER_OUTPUT_REVOLUTION 8 * 64 //define the number of steps to take each time the code loops
// 6 should give about 1 revolution per hour with a 2 second delay at the end of the loop
DHT dht(DHTPIN, DHTTYPE); //initialize the temp sensor
// LCD Connections:
// rs (LCD pin 4) to Arduino pin 12
// rw (LCD pin 5) to Arduino pin 11
// enable (LCD pin 6) to Arduino pin 10
// LCD pin 15 to Arduino pin 13
// LCD pins d4, d5, d6, d7 to Arduino pins 5, 4, 3, 1
LiquidCrystal lcd(12, 11, 10, 5, 4, 3, 1); //set up what port the LCD will use
int backLight = 13; // pin 13 will control the backlight
int is,im,ih,id,ida; // variables for time
float time,s1,m1,h1,d1; // Set up variables to calculate time
int ic,ip,ik;
int Steps2Take; // define the steper motor steps
byte thermo[8] ={B00100,B01010,B01010,B01110,B01110,B11111,B11111,B01110}; //thermometer icon
byte drop[8] ={B00100,B00100,B01010,B01010,B10001,B10001,B10001,B01110}; //drop icon
byte smile[8] = {B00000,B10001,B00000,B00000,B10001,B01110,B00000}; // smile icon
byte tim[8] = {B00000,B01110,B10101,B10101,B10011,B10001,B01110,}; // clock icon
//The pin connections need to be 4 pins connected
// to Motor Driver In1, In2, In3, In4 and then the pins entered
// here in the sequence 1-3-4-2 for proper sequencing (hook up driver bard pins to arduino 6789
Stepper small_stepper(STEPS_PER_MOTOR_REVOLUTION, 7, 9,8, 6);
void setup()
{
dht.begin(); //start the temp sensor
pinMode(RELAY, OUTPUT);
pinMode(backLight, OUTPUT);
digitalWrite(backLight, LOW); // turn backlight on. Replace 'HIGH' with 'LOW' to turn it off.
lcd.begin(20,4); // columns, rows. use 16,2 for a 16x2 LCD, etc.
lcd.clear(); // start with a blank screen
lcd.setCursor(0,0); // set cursor to column 0, row 0 (the first row)
lcd.print("Incubator 1.0"); // opening line
lcd.setCursor(0,1); // set cursor to column 0, row 1
lcd.print("Hatch Them!");
delay(2000);
// Uncomment if you want more text on the 4 line LCD (not used in 2 line LCDs)
// lcd.setCursor(0,2); // set cursor to column 0, row 2
// lcd.print("Row 3"); //Text for line 3
//lcd.setCursor(0,3); // set cursor to column 0, row 3
//lcd.print("Row 4"); // Text for line 4
lcd.createChar(0,thermo);
lcd.createChar(1,drop);
lcd.createChar(2,smile);
lcd.createChar(3,tim);
}
//loop to read the sensor and display
void loop(){
float h = dht.readHumidity(); // Read the humidity
float t = dht.readTemperature(); // Read temperature in celsius
float f = dht.readTemperature(true); // get the temperature in Fahreheit
// uncomment to compute heat index in Fahrenheit (the default)
//float hif = dht.computeHeatIndex(f, h);
// Compute heat index in Celsius (isFahreheit = false)
//float hic = dht.computeHeatIndex(t, h, false);
time=millis(); // Get time in milliseconds since tunit turn on
s1=time/1000; // Convert time to seconds, minutes, hours, days
m1=s1/60;
h1=m1/60;
d1=h1/24;
id=int(d1); // Strip out remainder to leave Days:Hours:Minutes:Seconds
ih=int((d1-int(d1))*24);
im=int((h1-int(h1))*60);
is=int((m1-int(m1))*60);
// Calculate approximate days till hatch (assume 21 days to hatch)
ida=21-id;
if (isnan(h) || isnan(t) || isnan(f)){
// if sensor can't be read
lcd.clear();
lcd.setCursor(0,0);
lcd.print("failed to read sensor");
delay(50000);
return;
}
else {
//sensor was read succesfully so print values to LCD
lcd.clear(); // Clear the LCD
//Print temperature and humidity in first two lines
lcd.setCursor(0,0);
// lcd.print("Temperature:");
lcd.print(" ");
lcd.write(byte(0)); // Write the Thhermometer icon
lcd.print(" ");
lcd.print(f,1);
lcd.print(" F ");
//lcd.setCursor(0,1);
lcd.write(byte(1)); // Write the drop icon
// lcd.print("Humidity:");
lcd.print(" ");
lcd.print(h,0);
lcd.print(" %");
lcd.setCursor(0,1);
lcd.print(" ");
lcd.write(byte(3));
lcd.print(" ");
// Print time in format Time: xxd:xxh:xxm:xxs
lcd.print(id);
lcd.print("d:");
lcd.print(ih);
lcd.print("h:");
lcd.print(im);
lcd.print("m:");
lcd.print(is);
lcd.print("s");
lcd.setCursor(0,2);
lcd.print("_-_-_-_-_-_-_-_-_-_-");
lcd.setCursor(0,3);
// Print days left till hatch
lcd.print("Days left:");
lcd.print(21-id);
lcd.print(" ");
lcd.write(byte(2));
//Temperature controller
if(f < 98.0){ // Set the temperature for the relay to come on (somewhere around 90-101F to get eggs to hatch)
digitalWrite(RELAY,LOW); // Turns ON Relay
}
else{
digitalWrite(RELAY,HIGH); // Turns Relay Off
}
ic= im % 15;
ik=im-ip;
if(ic==0 && ik != 0){
ip=im;
lcd.setCursor(0,2);
lcd.print("Turning Eggs!_-_-_-_");
Steps2Take = STEPS_PER_OUTPUT_REVOLUTION ; // define stepper CW steps
small_stepper.setSpeed(50); // set stepper max speed
small_stepper.step(Steps2Take); // take the steps
// Steps2Take = - STEPS_PER_OUTPUT_REVOLUTION; // define stepper CCW 1 steps
// small_stepper.setSpeed(700); // set stepper to max speed
// small_stepper.step(Steps2Take); // take the steps
}
// Puase for 2 seconds
delay(2000);
}
}
