exit status 1 expected unqualified-id before 'if'

Projects Programming
1

HI, I got an error I just need to fix it it, can you please help me with it

below is the error:-4_pushbutton_arduino_ide_tutorial_keyboard_and_mouse:54:3: error: expected unqualified-id before 'if'

if (digitalRead(WButton) == HIGH); {

^~

4_pushbutton_arduino_ide_tutorial_keyboard_and_mouse:54:38: error: expected unqualified-id before '{' token

if (digitalRead(WButton) == HIGH); {

^

4_pushbutton_arduino_ide_tutorial_keyboard_and_mouse:57:3: error: expected unqualified-id before 'if'

if (digitalRead(SButton) == HIGH); {

^~

4_pushbutton_arduino_ide_tutorial_keyboard_and_mouse:57:38: error: expected unqualified-id before '{' token

if (digitalRead(SButton) == HIGH); {

^

4_pushbutton_arduino_ide_tutorial_keyboard_and_mouse:60:3: error: expected unqualified-id before 'if'

if (digitalRead(AButton) == HIGH); {

^~

4_pushbutton_arduino_ide_tutorial_keyboard_and_mouse:60:38: error: expected unqualified-id before '{' token

if (digitalRead(AButton) == HIGH); {

^

4_pushbutton_arduino_ide_tutorial_keyboard_and_mouse:63:3: error: expected unqualified-id before 'if'

if (digitalRead(DButton) == HIGH); {

^~

4_pushbutton_arduino_ide_tutorial_keyboard_and_mouse:63:38: error: expected unqualified-id before '{' token

if (digitalRead(DButton) == HIGH); {

^

Using library Keyboard at version 1.0.2 in folder: C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.33.0_x86__mdqgnx93n4wtt\libraries\Keyboard
Using library HID at version 1.0 in folder: C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.33.0_x86__mdqgnx93n4wtt\hardware\arduino\avr\libraries\HID
exit status 1
expected unqualified-id before 'if'

and below is the code:-

#include <Keyboard.h>

// set pin numbers for the five buttons:
const int WButton = 2;
const int SButton = 3;
const int AButton = 4;
const int DButton = 5;

void setup() { // initialize the buttons' inputs:
 pinMode(WButton, INPUT);
 pinMode(SButton, INPUT);
 pinMode(AButton, INPUT);
 pinMode(DButton, INPUT);
 
 Serial.begin(9600);
 // initialize mouse control:

 Keyboard.begin();
}

void loop() {
 // use serial input to control the mouse:
 if (Serial.available() > 0)    <<< needs a { here
   char inChar = Serial.read();}

 // use the pushbuttons to control the keyboard:
 if (digitalRead(WButton) == HIGH); {
   Keyboard.write('W');
 }
 if (digitalRead(SButton) == HIGH); {
   Keyboard.write('S');
 }
 if (digitalRead(AButton) == HIGH); {
   Keyboard.write('A');
 }
 if (digitalRead(DButton) == HIGH); {
   Keyboard.write('D');

 }   
} and this one was missing here

Don't forget CTRL-T to format the code better, lines up ( ), { }, etc for you.
[/code]

2

All the stuff after the } is outside the loop() function, causing the error. Move that } to the end of the code

void loop() {
// use serial input to control the mouse:
if (Serial.available() > 0)
char inChar = Serial.read();}

Also, remove the ; in all these lines:
if (digitalRead(WButton) == HIGH); {
The ; there terminates the processing of the if test.

#include <Keyboard.h>

// set pin numbers for the five buttons:
const int WButton = 2;
const int SButton = 3;
const int AButton = 4;
const int DButton = 5;

void setup() { // initialize the buttons' inputs:
  pinMode(WButton, INPUT);
  pinMode(SButton, INPUT);
  pinMode(AButton, INPUT);
  pinMode(DButton, INPUT);

  Serial.begin(9600);
  // initialize mouse control:

  Keyboard.begin();
}

void loop() {
  // use serial input to control the mouse:
  if (Serial.available() > 0){
    char inChar = Serial.read();
  }

  // use the pushbuttons to control the keyboard:
  if (digitalRead(WButton) == HIGH) {
    Keyboard.write('W');
  }
  if (digitalRead(SButton) == HIGH) {
    Keyboard.write('S');
  }
  if (digitalRead(AButton) == HIGH) {
    Keyboard.write('A');
  }
  if (digitalRead(DButton) == HIGH) {
    Keyboard.write('D');

  }  
}

Or, consider the Serial.available as missing a starting {
and still add the missing } to the end.
Please use the code tag button </> on the menu when posting code.

3

Also, I have version 1.8.5 of the IDE, it says Keyboard.h needs a Leonardo, which uses the '32U4 chip, not the 328P chip.

4

Thanks alot man ,it worked