Arduino — выражение нельзя использовать как функцию :(

Скетч:

//XPERT MIND.
//This program is used to control a robot using a app that communicates with Arduino through a bluetooth module.
//Error Code Chart: Code 01; Turnradius is higher than Speed; Code 02; Speed is higher than 255;
#include "Arduino.h"
#include "SoftwareSerial.h"

#define in1 3 //L298n Motor Driver pins.
#define in2 4
#define in3 5
#define in4 6
#define enA 2
#define enB 7
#define klaksonON 8
#define klaksonOFF  8
#define ledON 9
#define ledOFF 9

int command; //Int to store app command state.
int Speed = 255; // 0 - 255.
int Speedsec;
int buttonState = 0;
int lastButtonState = 0;
int Turnradius = 0; //Set the radius of a turn, 0 - 255 Note:the robot will malfunction if this is higher than int Speed.
int brakeTime = 45;
int brkonoff = 1; //1 for the electronic braking system, 0 for normal.
void setup() {
  pinMode(in1, OUTPUT);
  pinMode(in2, OUTPUT);
  pinMode(in3, OUTPUT);
  pinMode(in4, OUTPUT);
  pinMode(ledOFF, OUTPUT); //Set the LED pin.
  pinMode(ledON, OUTPUT); //Set the LED pin.
  pinMode(klaksonOFF, OUTPUT);
  pinMode(klaksonON, OUTPUT);

  Serial.begin(9600);  //Set the baud rate to your Bluetooth module.

}

void loop() {
  if (Serial.available() > 0) {
    command = Serial.read();
    Stop(); //Initialize with motors stoped.

    switch (command) {
      case 'F':
        forward();
        break;
      case 'B':
        back();
        break;
      case 'L':
        left();
        break;
      case 'R':
        right();
        break;
      case 'G':
        forwardleft();
        break;
      case 'I':
        forwardright();
        break;
      case 'H':
        backleft();
        break;
      case 'J':
        backright();
        break;
      case '0':
        Speed = 100;
        break;
      case '1':
        Speed = 140;
        break;
      case '2':
        Speed = 153;
        break;
      case '3':
        Speed = 165;
        break;
      case '4':
        Speed = 178;
        break;
      case '5':
        Speed = 191;
        break;
      case '6':
        Speed = 204;
        break;
      case '7':
        Speed = 216;
        break;
      case '8':
        Speed = 229;
        break;
      case '9':
        Speed = 242;
        break;
      case 'q':
        Speed = 255;
        break;
      case 'V':
        klaksonON();
        break;
      case 'v':
        klaksonOFF();
        break;
      case 'W':
        ledON();
        break;
      case 'w':
        ledOFF();
        break;
    }

    Speedsec = Turnradius;
    if (brkonoff == 1) {
      brakeOn();
    } else {
      brakeOff();
    }
  }
}

void forward() {
  digitalWrite(enA, HIGH);
  digitalWrite(enB, HIGH);
  analogWrite(in2, Speed);
  analogWrite(in4, Speed);
}

void back() {
  digitalWrite(enA, HIGH);
  digitalWrite(enB, HIGH);
  analogWrite(in1, Speed);
  analogWrite(in3, Speed);
}

void left() {
  digitalWrite(enA, HIGH);
  digitalWrite(enB, HIGH);
  analogWrite(in4, Speed);
  analogWrite(in1, Speed);
}

void right() {
  digitalWrite(enB, HIGH);
  digitalWrite(enA, HIGH);
  analogWrite(in3, Speed);
  analogWrite(in2, Speed);
}
void forwardleft() {
  digitalWrite(enA, HIGH);
  digitalWrite(enB, HIGH);
  analogWrite(in2, Speedsec);
  analogWrite(in4, Speed);
}
void forwardright() {
  digitalWrite(enA, HIGH);
  digitalWrite(enB, HIGH);
  analogWrite(in2, Speed);
  analogWrite(in4, Speedsec);
}
void backright() {
  digitalWrite(enA, HIGH);
  digitalWrite(enB, HIGH);
  analogWrite(in1, Speed);
  analogWrite(in3, Speedsec);
}

void backleft() {
  digitalWrite(enA, HIGH);
  digitalWrite(enB, HIGH);
  analogWrite(in1, Speedsec);
  analogWrite(in3, Speed);
}

void Stop() {
  analogWrite(in1, 0);
  analogWrite(in2, 0);
  analogWrite(in3, 0);
  analogWrite(in4, 0);
}
void klaksonON() {
   tone(klaksonON, 1000); //Wygeneruj sygnał o częstotliwości 1000Hz na pinie 8

}
void klaksonOFF() {
   noTone(klaksonOFF);

}
void ledON() {

}
void ledOFF() {

}


void brakeOn() {
  //Here's the future use: an electronic braking system!
  // read the pushbutton input pin:
  buttonState = command;
  // compare the buttonState to its previous state
  if (buttonState != lastButtonState) {
    // if the state has changed, increment the counter
    if (lastButtonState == 'F') {
      if (buttonState == 'S') {
        back();
        delay(brakeTime);
        Stop();
      }
    }
    if (lastButtonState == 'B') {
      if (buttonState == 'S') {
        forward();
        delay(brakeTime);
        Stop();
      }
    }
    if (lastButtonState == 'L') {
      if (buttonState == 'S') {
        right();
        delay(brakeTime);
        Stop();
      }
    }
    if (lastButtonState == 'R') {
      if (buttonState == 'S') {
        left();
        delay(brakeTime);
        Stop();
      }
    }
  }
  // save the current state as the last state,
  //for next time through the loop
  lastButtonState = buttonState;
}
void brakeOff() {

}

Выход:

--------------------------------------------------------------
Arduino:1.8.5 (Windows 10), Płytka:"Arduino/Genuino Uno"

C:\Users\jjayy\Desktop\Samochodzik_z_lixbota\Samochodzik_z_lixbota.ino\Samochodzik_z_lixbota.ino.ino: In function 'void setup()':

C:\Users\jjayy\Desktop\Samochodzik_z_lixbota\Samochodzik_z_lixbota.ino\Samochodzik_z_lixbota.ino.ino:35:21: warning: invalid conversion from 'void (*)()' to 'uint8_t {aka unsigned char}' [-fpermissive]

   tone(Klakson, 1000); //Wygeneruj sygnał o częstotliwości 1000Hz na pinie 8

                     ^

In file included from C:\Users\jjayy\Desktop\Samochodzik_z_lixbota\Samochodzik_z_lixbota.ino\Samochodzik_z_lixbota.ino.ino:4:0:

C:\Users\jjayy\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.6.21\cores\arduino/Arduino.h:246:6: note: initializing argument 1 of 'void tone(uint8_t, unsigned int, long unsigned int)'

 void tone(uint8_t _pin, unsigned int frequency, unsigned long duration = 0);

      ^

C:\Users\jjayy\Desktop\Samochodzik_z_lixbota\Samochodzik_z_lixbota.ino\Samochodzik_z_lixbota.ino.ino: In function 'void loop()':

Samochodzik_z_lixbota.ino:104: error: expression cannot be used as a function

         klaksonON();

                   ^

Samochodzik_z_lixbota.ino:107: error: expression cannot be used as a function

         klaksonOFF();

                    ^

Samochodzik_z_lixbota.ino:110: error: expression cannot be used as a function

         ledON();

               ^

Samochodzik_z_lixbota.ino:113: error: expression cannot be used as a function

         ledOFF();

                ^

C:\Users\jjayy\Desktop\Samochodzik_z_lixbota\Samochodzik_z_lixbota.ino\Samochodzik_z_lixbota.ino.ino: In function 'void Klakson()':

C:\Users\jjayy\Desktop\Samochodzik_z_lixbota\Samochodzik_z_lixbota.ino\Samochodzik_z_lixbota.ino.ino:186:29: warning: invalid conversion from 'void (*)()' to 'uint8_t {aka unsigned char}' [-fpermissive]

   digitalWrite(Klakson, HIGH);

                             ^

In file included from C:\Users\jjayy\Desktop\Samochodzik_z_lixbota\Samochodzik_z_lixbota.ino\Samochodzik_z_lixbota.ino.ino:4:0:

C:\Users\jjayy\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.6.21\cores\arduino/Arduino.h:134:6: note: initializing argument 1 of 'void digitalWrite(uint8_t, uint8_t)'

 void digitalWrite(uint8_t, uint8_t);

      ^

exit status 1
expression cannot be used as a function

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