处理arduino连接难度

时间:2013-10-20 21:08:17

标签: arduino processing

我正在尝试将char从处理发送到arduino,但是arduino只识别其中的2个,

问题在于'2'字符

当我按's'键时,处理代码正在发送'2'字符,因为我可以看到arduino rx led灯,但电机什么也没做,

使用'1'或'0'字符我没有问题,  我将arduino代码中的'2'切换为对应于drive_forward,然后切换到drive_reverse,但是分配给它的'2'字符的那个在两种情况下都不起作用, 正如我所说'1'和'0'字符被发送和接收好

我想这是arduino代码中的内容,但我不知道是什么

arduino代码:

int motor1 = 4;
int motor2 = 5;
char val; 

// --------------------------------------------------------------- Setup
void setup() {
Serial.begin(9600);

// Setup motors

pinMode(motor1, OUTPUT);
pinMode(motor2, OUTPUT);

}


// ---------------------------------------------------------------- Loop
void loop() { 
  if (Serial.available()>0) 
   { // If data is available to read,
     val = Serial.read(); // read it and store it in val
   }
  if (val == '2'){
       drive_forward();
        }
  if (val == '1'){
      drive_reverse();
                  }
  if (val == '0'){
  motor_stop();

                  }

}

// --------------------------------------------------------------------------- Drive

void motor_stop(){

digitalWrite(motor1, LOW); 
digitalWrite(motor2, LOW);


}
void drive_forward(){

digitalWrite(motor1, HIGH); 
digitalWrite(motor2, LOW); 
delay(15);
digitalWrite(motor1, LOW); 
digitalWrite(motor2, LOW);
delay(15);


}
void drive_reverse(){

digitalWrite(motor2, HIGH); 
digitalWrite(motor1, LOW); 
delay(15);
digitalWrite(motor2, LOW); 
digitalWrite(motor1, LOW);
delay(15);


}

处理代码:

import processing.serial.*;

Serial myPort;  


void setup() 
{
  size(200,200); 
  myPort = new Serial(this, Serial.list()[2], 9600);


}
void draw() {





  } 
void keyPressed() {
    if (key == 'w' || key == 'W')
    { 
      myPort.write('1');
    println("1");}
      if (key == 's' || key == 'S')
    { 
      myPort.write('2');
    println("2");}
}
void keyReleased() {
myPort.write('0');
println("0");

}

1 个答案:

答案 0 :(得分:1)

正如@tailedmouse所说,将数据发送为整数。

处理代码:

//skipped some code
void keyPressed() {
    if (key == 'w' || key == 'W') {
        myPort.write(1); 
    }

    if (key == 's' || key == 'S') {
        myPort.write(2);
        println("2");
    }
} 

void keyReleased() {
    myPort.write(0);
    println("0");
}

Arduino代码:

//skipped some code.
void loop() {
    if (Serial.available()>0) {
        // If data is available to 
        read, val = Serial.read(); 
        // read it and store it in val 
    }

    if (val == 2) {
        drive_forward();
    }

    if (val == '1') {
        drive_reverse();
    }

    if (val == '0') {
        motor_stop();
    }
}