求助，串口发送数据的问题
我使用的是2560的板子 在ARDUINO IDE 中的串口查看器中输入的数据都正常，就是用PYTHON 或 PROCESSING 的时候发送的数据就不能成功解析 MACLINUX WINDOWS都测试了不行啊，为啥啊，自带的例子都不行。ARDUINO 代码是接收串口的数据为H 时 灯亮 否则灭
用IDE 的串口查看器发送参数就可行
用PROCESSING发送参数就不行 串口速率全无问题求救啊
下面的代码是ARDUINO 的是PROCESSING 中的例子
// Wiring/Arduino code:
// Read data from the serial and turn ON or OFF a light depending on the value
char val; // Data received from the serial port
int ledPin = 45; // Set the pin to digital I/O 4
void setup() {
pinMode(ledPin, OUTPUT); // Set pin as OUTPUT
Serial.begin(9600); // Start serial communication at 9600 bps
}
void loop() {
if (Serial.available()) { // If data is available to read,
val = Serial.read(); // read it and store it in val
}
if (val == 'H') { // If H was received
digitalWrite(ledPin, HIGH); // turn the LED on
} else {
digitalWrite(ledPin, LOW); // Otherwise turn it OFF
}
delay(100); // Wait 100 milliseconds for next reading
}
PROCESSION 代码
import processing.serial.*;
Serial myPort;// Create object from Serial class
int val; // Data received from the serial port
void setup()
{
size(200, 200);
// I know that the first port in the serial list on my mac
// is always myFTDI adaptor, so I open Serial.list().
// On Windows machines, this generally opens COM1.
// Open whatever port is the one you're using.
String portName = "COM4";
myPort = new Serial(this, portName, 9600);
println(portName);
}
void draw() {
background(255);
if (mouseOverRect() == true) {// If mouse is over square,
fill(204); // change color and
myPort.write('H'); // send an H to indicate mouse is over square
println('H');
}
else { // If mouse is not over square,
fill(0); // change color and
myPort.write('L'); // send an L otherwise
println('L');
}
rect(50, 50, 100, 100); // Draw a square
}
boolean mouseOverRect() { // Test if mouse is over square
return ((mouseX >= 50) && (mouseX <= 150) && (mouseY >= 50) && (mouseY <= 150));
}
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