compiler error, missing semi-colon

Projects Programming
1

I am getting a compiler error saying a semi-colon is expected before motorPin, but I can't find where, or any other place with an error. It's a simple program; shown in its' entirety below. The error message is also attached.

All it is meant to do is run a motor (through a relay), upon the push of a button, for a set time.

Thanks in advance for any help.

int buttonPin = 8;
int motorPin = 11;

void setup() {
 pinMode (buttonPin, INPUT); 
 pinMode (motorPin, OUTPUT);
}

void loop() {
int runtime = 10000;//motor on time in milliseconds
int runspeed = 150;//for pwm, so 0 - 255 
int buttonState = digitalRead (buttonPin);
if (buttonState == 1){
  analogWrite motorPin (runspeed); //This line is highlighted as the error
  delay (runtime); 
}
}

ArduinoErrorHoneyStirrer.txt (4.77 KB)

2

Yep. Compiler was right:

  analogWrite motorPin (runspeed); //This line is highlighted as the error

analogWrite takes 2 parameters:

  analogWrite(motorPin, runspeed);
3

Ahhh, I'd put the bracket in the wrong place, thanks.

4

The error message gives you the exact line number, and character position where the error is....

5

ok, thanks. That helps.

is there a specific symbol or phrase which reliably appears before that part, so i can find it with my screen reader? I can search for a phrase and read from there, but error messages through a screen reader are taking some getting used to.

6

The full messages appear in the text box below the sketch. Each message starts with the full path to the sketch followed by a colon. If you search for ".ino:" that should get you to the interesting part of the message.

/Users/john/Documents/Arduino/sketch_feb28a/sketch_feb28a.ino: In function 'void loop()':
sketch_feb28a:14:15: error: expected ';' before 'motorPin'
   analogWrite motorPin (runspeed); //This line is highlighted as the error
               ^~~~~~~~
/Users/john/Documents/Arduino/sketch_feb28a/sketch_feb28a.ino:14:34: warning: statement is a reference, not call, to function 'analogWrite' [-Waddress]
   analogWrite motorPin (runspeed); //This line is highlighted as the error
                                  ^
/Users/john/Documents/Arduino/sketch_feb28a/sketch_feb28a.ino:14:34: warning: statement has no effect [-Wunused-value]
/Users/john/Documents/Arduino/sketch_feb28a/sketch_feb28a.ino:11:5: warning: unused variable 'runspeed' [-Wunused-variable]
 int runspeed = 150;//for pwm, so 0 - 255
     ^~~~~~~~
exit status 1
expected ';' before 'motorPin'
7

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