LOVE0METER Error Message 'class HardwareSerial' has no member named 'print1n'

Projects Programming
1

I had several errors, but the last one I can't figure out. I looked at the youtube video but it the sketch is different from the book i purchased and cannot find anything on it. Any help is appreciated. The errors are at the bottom. Thanks!

const int sensorPin = A0;
const float baselineTemp = 20.0;
void setup() {
  Serial.begin(9600);//open a serial port
  for(int pinNumber = 2; pinNumber<5; pinNumber++){
    pinMode(pinNumber,OUTPUT);
    digitalWrite(pinNumber, LOW);
  }
}
void loop(){
  // put your main code here, to run repeatedly:
  int sensorVal = analogRead(sensorPin);
  Serial.print("Sensor Value:");
  Serial.print(sensorVal);
  //convert the ADC reading to voltage
  float voltage = (sensorVal/1024.0) * 5.0;
  Serial.print(", Volts:");
  Serial.print(voltage);
  Serial.print(",degrees C:");
  //convert the voltage to temperature in degrees
  float temperature = (voltage - .5) * 100;
  Serial.print1n(temperature) ;
  if(temperature < baselineTemp){
    digitalWrite(2,LOW)
    digitalWrite(3,LOW)
    digitalWrite(4,LOW)
  }esle if(temperature >= baselineTemp+2 &&
    temperature < baselineTemp+4){
    digitalWrite(2,HIGH);
    digitalWrite(3,LOW);
    digitalWrite(4,LOW);
  }else if(temperature >= baselineTemp+4 &&
    temperature < baselineTemp+6){
      digitalWrite(2,HIGH);
      digitalWrite(3,HIGH);
      digitalWrite(4,LOW);
  }else if(temperature >= baselineTemp+6){
      digitalWrite(2,HIGH);
      digitalWrite(3,HIGH);
      digitalWrite(4,HIGH);
  }
  delay(1);
}
    
  }

}

LoveMeter.ino: In function 'void loop()':
LoveMeter:22: error: 'class HardwareSerial' has no member named 'print1n'
LoveMeter:25: error: expected ';' before 'digitalWrite'
LoveMeter:27: error: 'esle' was not declared in this scope
LoveMeter:27: error: expected ';' before 'if'
LoveMeter:32: error: 'else' without a previous 'if'
LoveMeter.ino: At global scope:
LoveMeter:45: error: expected declaration before '}' token
'class HardwareSerial' has no member named 'print1n'

2

that's the number one (1), not an 'l"

you have typed "Serial.print1n". Change it to "Serial.println"

oh, and change "esle" to "else"

3

1. It's 'println()', not 'print1n(); - done

  1. You didn't end these lines with a semicolon:-
digitalWrite(2,LOW)
digitalWrite(3,LOW)
digitalWrite(4,LOW)

3. Take a good look at this and you'll work it out:- - done

LoveMeter:27: error: 'esle' was not declared in this scope
  1. You have two extra closing curly brackets at the end of your code.

You beat me to 1 and 3, @arduinodlb. :slight_smile: