程序运行报错

hgmyaoming

byte val;
int ledpin=13;
void setup()
{
  Serial.begin(9600);
  pinMode(ledpin,OUTPUT);
}
void loop()
{
  if(Serial.available())
  {
   val=Serial.read();
   if(val=='r')
   {
    digitalWrite(ledpin，HIGH);
    delay((500);
    digitalWrite(ledpin，LOW);
    delay(500);
    Serial.println("keyes");
    }
   }
}
运行后是这样的错误

Arduino: 1.6.1 (Windows 7), Board: "Arduino Uno"

Build options changed, rebuilding all

BlueTooth_controal.ino:16:5: error: stray '\' in program

BlueTooth_controal.ino:18:5: error: stray '\' in program

BlueTooth_controal.ino: In function 'void loop()':

BlueTooth_controal.ino:16:25: error: expected ')' before 'uff0cHIGH'

BlueTooth_controal.ino:16:34: error: too few arguments to function 'void digitalWrite(uint8_t, uint8_t)'

In file included from BlueTooth_controal.ino:2:0:

E:\Program Files\Arduino\hardware\arduino\avr\cores\arduino/Arduino.h:126:6: note: declared here

void digitalWrite(uint8_t, uint8_t);

      ^

BlueTooth_controal.ino:17:16: error: expected ')' before ';' token

BlueTooth_controal.ino:18:25: error: expected ')' before 'uff0cLOW'

BlueTooth_controal.ino:18:33: error: too few arguments to function 'void digitalWrite(uint8_t, uint8_t)'

In file included from BlueTooth_controal.ino:2:0:

E:\Program Files\Arduino\hardware\arduino\avr\cores\arduino/Arduino.h:126:6: note: declared here

void digitalWrite(uint8_t, uint8_t);

      ^

Error compiling.

  This report would have more information with
  "Show verbose output during compilation"
  enabled in File > Preferences.
求解

Super169

首先, 你要明白運行跟 compile 的分明.  你並非在運行後出問題.
其次, 你要明白中文輸入時, 全形跟半形的分別.  程式中字串/字符/註解中可以加入全形的文字, 但其他地方只可以有半形的.  小心看看你的標點符號吧.

hgmyaoming

谢谢你的指点

hgmyaoming

/*
OpenJumper Examples
DHT11 Moudle
www.openjumper.com
*/
#include <dht11.h>

dht11 DHT11;

#define DHT11PIN 2

void setup()
{
  Serial.begin(9600);
}

void loop()
{
  Serial.println("\n");
  // 读取传感器数据
  int chk = DHT11.read(DHT11PIN);
  Serial.print("Read sensor: ");
  // 检测数据是否正常接收
  switch (chk)
  {
    case DHTLIB_OK:
                Serial.println("OK");
                break;
    case DHTLIB_ERROR_CHECHSUM:
                Serial.println("Checksum error");
                break;
    case DHTLIB_ERROR_TIMEOUT:
                Serial.println("Time out error");
                break;
    default:
                Serial.println("Unknown error");
                break;
  }
  // 输出湿度与温度信息
Serial.print("Humidity (%): ");
  Serial.println(DHT11.humidity);
  Serial.print("Temperature (oC): ");
  Serial.println(DHT11.temperature);

  delay(1000);
}
编译报错：
Arduino: 1.6.1 (Windows 7), Board: "Arduino Uno"

temperature_and_Humidity_check1.ino: In function 'void loop()':

temperature_and_Humidity_check1.ino:29:10: error: 'DHTLIB_ERROR_CHECHSUM' was not declared in this scope

Error compiling.

  This report would have more information with
  "Show verbose output during compilation"
  enabled in File > Preferences.
这是我按《arduino 程序设计基础第二版》的案例敲进去的，卟知道怎么改，能帮看看吗？

suoma

hgmyaoming 发表于 2015-4-1 12:07
/*
OpenJumper Examples
DHT11 Moudle

        注意全形，半形