I am trying to make a code for reading the temperature in the room and I keep getting error messages and I am not sure what they mean. Here is the entire error message and my code.
const int sensorPin = A0
(const float baselineTemp = 20.0);
void setup(){
Serial.begin(9600); // open a serial post
for(int pinNumber = 2; pinNumber<5; pinNumber++){
pinMode(pinNumber, OUTPUT);
digitalWrite(pinNumber, LOW);
}
}
void loop(){
int sensorVal = analogRead(sensorPin);
Serial.print("Sensor Value: ");
Serial.print(sensorVal);
// convert the ADC reading to votage
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.println(temperature);
if(temperature < baselineTemp+2){
digitalWrite(2, LOW);
digitalWrite(3, LOW);
digitalWrite(4, LOW);
}else 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);
}
[Error]
2:2: error: expected primary-expression before 'const'
2:33: error: 'A0' cannot be used as a function
In function 'void loop()':
22:20: error: 'baselineTemp' was not declared in this scope
Hopefully someone can help!