I get an error in this code.
dht DHT;
#define DHT11_PIN 4 // use pin 2 on UNO to sample data from DHT module
const int relay1 = 2; //Digital pin that the Relay is connected
const int relay2 = 5; //Digital pin that the Relay is connected
const int OnHour1 = 10;
const int OnMin1 = 23;
const int OffHour1 = 10;
const int OffMin1 = 24;
void setup()
{
Serial.begin(9600);
Serial.println("DHT TEST PROGRAM ");
Serial.print("DHT LIBRARY VERSION: ");
Serial.println(DHT_LIB_VERSION);
Serial.println();
Serial.println("Humidity % \tTemperature (C) \tTime \tDate");
lcd.begin(20, 4); // defines it is a 20 character four line display
rtc.begin(); // Start the RTC library code
}
void loop()
{
// READ DATA
DateTime now = rtc.now();
int chk = DHT.read11(DHT11_PIN);
Serial.print(DHT.humidity, 1);
Serial.print(",\t");
Serial.print("\t");
Serial.print(DHT.temperature, 1);
Serial.print(",\t");
Serial.print("\t");
Serial.print("\t");
Serial.print(now.hour(), DEC);
Serial.print(':');
Serial.print(now.minute(), DEC);
Serial.print(':');
Serial.print(now.second(), DEC);
Serial.print(' ');
Serial.print(now.day(), DEC);
Serial.print('/');
Serial.print(now.month(), DEC);
Serial.print('/');
Serial.println(now.year(), DEC);
lcd.setCursor(0, 0); // start postion of Humidity text on LCD
lcd.print(DHT.humidity, 0); // 0 creates whole number, 1 two decimal
lcd.print("% Humidity ");
lcd.setCursor(14, 0); // start postion of temperature text on LCD
lcd.print(DHT.temperature * 1.8 + 32, 0); //Farhenheit conversion
lcd.setCursor(17, 0);
//lcd.print(”F“);
//lcd.print(DHT.temperature, 0);
//lcd.print(" C");
lcd.setCursor(6, 1); // start postion of time text on LCD
lcd.print(now.hour(), DEC);
lcd.print(':');
lcd.print(now.minute(), DEC);
lcd.print('.');
lcd.print(now.second(), DEC);
lcd.setCursor(0, 2); // start postion of time text on LCD
lcd.print(now.hour(), DEC);
lcd.print(':');
lcd.print(now.minute(), DEC);
lcd.print('.');
lcd.print(now.second(), DEC);
// You can display in lcd by changing Serial to lcd I have only used time above not date
//lcd.print(now.year(), DEC);
//lcd.print('/');
//lcd.print(now.month(), DEC);
//lcd.print('/');
//lcd.print(now.day(), DEC);
//lcd.print(' ');
//lcd.print(now.hour(), DEC);
//lcd.print(':');
//lcd.print(now.minute(), DEC);
//lcd.print(':');
//lcd.print(now.second(), DEC);
//lcd.println();
delay(1000); // screen - sample & LCD refresh time 1 second although DHT say min 2 seconds but works ok.
if (now.hour == OnHour1 && now.minute == OnMin1) {
digitalWrite (relay1, LOW);
}
else if (now.hour == OffHour1 && now.minute == OffMin1) {
digitalWrite (relay1, HIGH);
}
//
// END OF FILE
The error message
C:\Users\Documents\Arduino\rtc-lcd-dht\rtc-lcd-dht.ino: In function 'void loop()':
rtc-lcd-dht:101: error: invalid use of member function (did you forget the '()' ?)
if (now.hour == OnHour1) && (now.minute == OnMin1) {
^
rtc-lcd-dht:101: error: expected identifier before '(' token
if (now.hour == OnHour1) && (now.minute == OnMin1) {
What is wrong??
That's why it's better not to repeat yourself in the comment but extend it. So
This code complies but does not put the on and off on display.