Hello arduino~
before saying...im eastern and not good at English...
so plz.... understand my English level....: )
im going to use ultrasonicwave sensor to receive distance value to arduino
and that value will send to C++
In c++ some algorithim will work and send signal to arduino to run dc motor and sub motor
this send, receive signal should work everytime while my car is working....
So! my question is how to receive data from arduino to linux
and receive data from linux to arduino
my base code of arduino is this....
// #include <Servo.h>
//Servo myservo; // 서보모터 선언
//int buzzer = 2;
//int motor_direction = 13;
//int motor_pwm = 11;
//int motor_break = 8;
int trigPin1 = 23; // 전방 우측 센서 -----> means foward right sensor....not much meaning
int echoPin1 = 22;
int trigPin2 = 25; // 전방 중앙 센서
int echoPin2 = 24;
int trigPin3 = 27; // 전방 좌측 센서
int echoPin3 = 26;
int trigPin4 = 48; // 후방 좌측 센서
int echoPin4 = 49;
int trigPin5 = 50; // 후방 중앙 센서
int echoPin5 = 51;
int trigPin6 = 52; // 후방 우측 센서
int echoPin6 = 53;
void setup()
{
//myservo.attach(5); // 서보모터를 5번핀에 연결
//myservo.write(90); // 90'가 중심각도 여기서 +,- 30~31'가 조향임.
// 서보모터 회전정도를 정함 30~31이 최고임.
Serial.begin(115200);
// pinMode(buzzer, OUTPUT);
// pinMode(motor_direction, OUTPUT);
// pinMode(motor_pwm, OUTPUT);
// pinMode(motor_break, OUTPUT);
pinMode(trigPin1, OUTPUT);
pinMode(echoPin1, INPUT);
pinMode(trigPin2, OUTPUT);
pinMode(echoPin2, INPUT);
pinMode(trigPin3, OUTPUT);
pinMode(echoPin3, INPUT);
pinMode(trigPin4, OUTPUT);
pinMode(echoPin4, INPUT);
pinMode(trigPin5, OUTPUT);
pinMode(echoPin5, INPUT);
pinMode(trigPin6, OUTPUT);
pinMode(echoPin6, INPUT);
}
void loop()
{
digitalWrite(trigPin1, LOW);
digitalWrite(echoPin1, LOW);
delay(2);
digitalWrite(trigPin1, HIGH);
delay(10);
digitalWrite(trigPin1, LOW);
unsigned long duration1 = pulseIn(echoPin1, HIGH);
float distance1 = duration1 /29.0/2.0;
digitalWrite(trigPin2, LOW);
digitalWrite(echoPin2, LOW);
delay(2);
digitalWrite(trigPin2, HIGH);
delay(10);
digitalWrite(trigPin2, LOW);
unsigned long duration2 = pulseIn(echoPin2, HIGH);
float distance2 = duration2 /29.0/2.0;
digitalWrite(trigPin3, LOW);
digitalWrite(echoPin3, LOW);
delay(2);
digitalWrite(trigPin3, HIGH);
delay(10);
digitalWrite(trigPin3, LOW);
unsigned long duration3 = pulseIn(echoPin3, HIGH);
float distance3 = duration3 /29.0/2.0;
digitalWrite(trigPin4, LOW);
digitalWrite(echoPin4, LOW);
delay(2);
digitalWrite(trigPin4, HIGH);
delay(10);
digitalWrite(trigPin4, LOW);
unsigned long duration4 = pulseIn(echoPin4, HIGH);
float distance4 = duration4 /29.0/2.0;
digitalWrite(trigPin5, LOW);
digitalWrite(echoPin5, LOW);
delay(2);
digitalWrite(trigPin5, HIGH);
delay(10);
digitalWrite(trigPin5, LOW);
unsigned long duration5 = pulseIn(echoPin5, HIGH);
float distance5 = duration5 /29.0/2.0;
long duration6, distance6;
digitalWrite(trigPin6, LOW);
delay(2);
digitalWrite(trigPin6, HIGH);
delay(10);
digitalWrite(trigPin6, LOW);
duration6 = pulseIn(echoPin6, HIGH);
distance6 = duration6 * 17 / 1000;
Serial.print("\nDistance1: ");
Serial.print(distance1);
Serial.print("cm\n\n");
Serial.print("\nDistance2: ");
Serial.print(distance2);
Serial.print("cm\n\n");
Serial.print("\nDistance3: ");
Serial.print(distance3);
Serial.print("cm\n\n");
Serial.print("\nDistance4: ");
Serial.print(distance4);
Serial.print("cm\n\n");
Serial.print("\nDistance5: ");
Serial.print(distance5);
Serial.print("cm\n\n");
Serial.print("\nDistance6: ");
Serial.print(distance6);
Serial.print("cm\n\n");
}
But i have no idea how to make code in linux(C++) to receive data from arduino
my question maybe so ideal....but please u guys are my hope
PLZ HELP ME! 
