C++ Question
Arduino Error 1 expected unqualified-id before 'else'
Arduino Error: Where have i gone wrong in this simple and extremely small amount of code to receive the above error message? I cannot figure it out.
int ledPin = A0;
int bumpPin = A1;
void setup() {
pinMode(ledPin, OUTPUT);
pinMode(bumpPin, INPUT);
}
void loop() {
digitalRead(bumpPin);
if (bumpPin == HIGH);
digitalWrite(ledPin,HIGH);
}else{
digitalWrite(ledPin,LOW);
}
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Answer Source
Definitely read a tutorial on C/C++. What you have here is a basic syntax error. An if/else statements uses the following syntax:
if (condition) {
// Do stuff here
} else {
// Do other stuff here
}
You have a semi colon after your condition in your if statement. Change that to a curly brace and you’re good! So this:
if (bumpPin == HIGH);
Should be this:
if (bumpPin == HIGH) {
Here is an online C++ tutorial.
Here is that tutorial’s section on if statements.
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