Error Code 'Expected Primary-expression'

Projects Programming
1

Im using the Arduino Example with the 15 ultrasonic sensors and just changed it to suit my project

My project is a self driving car. With the sensors detect a servo will turn on the change the direction of the car and will have a motor that will turn at a constant speed.

expected declaration before '}' token
this is my error whilst im compiling it

i will be using 3 hc-srf04 and im using an Arduino UNO.

#include <NewPing.h>
#include <Servo.h>

#define SONAR_NUM 3
#define MAX_DISTANCE 40
#define PING_INTERVAL 33

int motorPin = 10;
int pos = 90;
unsigned long pingTimer[SONAR_NUM];
unsigned int cm[SONAR_NUM];
uint8_t currentSensor = 0;

NewPing sonar[SONAR_NUM] = {
NewPing SONAR_Middle (1, 2, MAX_DISTANCE),
NewPing SONAR_Left (3, 4, MAX_DISTANCE),
NewPing SONAR_Right (5, 6, MAX_DISTANCE)
};

void setup() {
pinMode (motorPin, OUTPUT);
myservo.attach (12)
Serial.begin(115200);
pingTimer[0] = millis() + 75;
for (uint8_t i = 1; i < SONAR_NUM; i++)
pingTimer = pingTimer[i - 1] + PING_INTERVAL;
}
void loop() {

  • digitalWrite (motorPin,HIGH);*
  • for (uint8_t i = 0; i < SONAR_NUM; i++) {*
    _ if (millis() >= pingTimer*) { _
    pingTimer += PING_INTERVAL * SONAR_NUM;
    if (i == 0 && currentSensor == SONAR_NUM - 1) oneSensorCycle();
    sonar[currentSensor].timer_stop();
    _ currentSensor = i;
    cm[currentSensor] = 0; _
    sonar[currentSensor].ping_timer(echoCheck);
    _ }
     }
    }
    void echoCheck() {_
    if (sonar[currentSensor].check_timer())
    cm[currentSensor] = sonar[currentSensor].ping_result / US_ROUNDTRIP_CM;
    _}*
    void oneSensorCycle() {_
    if (SONAR_Middle && SONAR_Left <= MAX_DISTANCE)

* for(pos = 90; pos < 180; pos += 1) *
* { *
* myservo.write(pos); *
* delay(10); *
* }*
* if (SONAR_Middle && SONAR_Right <= MAX_DISTANCE)
_ for(pos = 90; pos < 0; pos -= 1)
 {
myservo.write(pos);
delay(10); _
if (SONAR_Middle <= MAX_DISTANCE)
_ for (pos = 90; pos <180; pos +=1)
 {
 myservo.write (pos);
 delay (10) ;
 }_
if (SONAR_Middle && SONAR_Left && SONAR_Right <= MAX_DISTANCE)
_ digitalWrite (motorPin, LOW);
 delay(2000)*_

}
also any guidance on how to neaten things up that would be a big help thanks.

2

Is part of your code really in italics ?

Did you read this before posting a programming question ?

3

Your { } are not paired up correctly

#include <NewPing.h>
#include <Servo.h>

#define SONAR_NUM     3 
#define MAX_DISTANCE 40 
#define PING_INTERVAL 33 

int motorPin = 10;
int pos = 90;
unsigned long pingTimer[SONAR_NUM]; 
unsigned int cm[SONAR_NUM];    
uint8_t currentSensor = 0;         

NewPing sonar[SONAR_NUM] = {     
  NewPing SONAR_Middle (1, 2, MAX_DISTANCE), 
  NewPing SONAR_Left (3, 4, MAX_DISTANCE),
  NewPing SONAR_Right (5, 6, MAX_DISTANCE)
};

void setup() {
  pinMode (motorPin, OUTPUT);
  myservo.attach (12)
  Serial.begin(115200);
  pingTimer[0] = millis() + 75;          
  for (uint8_t i = 1; i < SONAR_NUM; i++) {
    pingTimer = pingTimer[i - 1] + PING_INTERVAL;
}
}

void loop() {
  digitalWrite (motorPin,HIGH);
  for (uint8_t i = 0; i < SONAR_NUM; i++) {
    if (millis() >= pingTimer) {         
      pingTimer += PING_INTERVAL * SONAR_NUM; 
      if (i == 0 && currentSensor == SONAR_NUM - 1){
      oneSensorCycle(); 
      sonar[currentSensor].timer_stop();          
      currentSensor = i;                        
      cm[currentSensor] = 0;                     
      sonar[currentSensor].ping_timer(echoCheck);
    }
   }
  }
}

void echoCheck() {
  if (sonar[currentSensor].check_timer()){
    cm[currentSensor] = sonar[currentSensor].ping_result / US_ROUNDTRIP_CM;
    }
}

void oneSensorCycle() { 
 if (SONAR_Middle && SONAR_Left <= MAX_DISTANCE){
     
      for(pos = 90; pos < 180; pos += 1)  {                               
    myservo.write(pos);             
    delay(10);                   
    }
   }
  if (SONAR_Middle && SONAR_Right <= MAX_DISTANCE){

       for(pos = 90; pos < 0; pos -= 1) 
  {                               
    myservo.write(pos);             
    delay(10); 
   }
  }

   if (SONAR_Middle <= MAX_DISTANCE) {

      for (pos = 90; pos <180; pos +=1)
  {
    myservo.write (pos);
    delay (10) ; 
  }
 }
  if (SONAR_Middle && SONAR_Left && SONAR_Right  <= MAX_DISTANCE) {

    digitalWrite (motorPin, LOW);
    delay(2000)
     }
    }

}
    
    
}

[/code]
I think that fixes them. Use CTLR-T and check.