hello ,
I intend to make chicken incubator using arduino uno but every time i copy codes to the arduino IDE i face below error while uploading . ( codes are not written by me )
here is the error :
Arduino: 1.8.3 (Windows 8.1), Board: "Arduino/Genuino Uno"
C:\Users\Gharaei.m\Documents\Arduino__.ino:2:17: fatal error: DHT.h: No such file or directory
#include "DHT.h"
^
compilation terminated.
exit status 1
Error compiling for board Arduino/Genuino Uno.
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
and here is the codes :
#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
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(8,9,4,5,6,7); //set up what port the LCD will use
int backLight = 13; // pin 13 will control the backlight
void setup()
{
dht.begin(); //start the temp sensor
pinMode(RELAY, OUTPUT);
pinMode(backLight, OUTPUT);
digitalWrite(backLight, HIGH); // 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); // opening line
lcd.setCursor(0,1); // set cursor to column 0, row 1
lcd.print("Hatch!");
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 //Text for line 3
//lcd.setCursor(0,3); // set cursor to column 0, row 3
//lcd.print("Row // Text for line 4
}
//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);
int is,im,ih,id,ida; // variables for time
float time,s1,m1,h1,d1; // Set up variables to calculate time
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("failedead");
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(f,1);
lcd.print(" F");
lcd.setCursor(0,1);
lcd.print("Humidity")
lcd.print(h,0);
lcd.print(" %");
lcd.setCursor(0,2);
lcd.print("Time
// 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(0,3);
// Print days left till hatch
lcd.print("Days:");
lcd.print(21-id);
//Temperature controller
if(f<91){ // 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
}
// Puase for 5 seconds
delay(5000);
}
}