arduino过滤空格

最新推荐文章于 2024-06-19 02:09:45 发布

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最新推荐文章于 2024-06-19 02:09:45 发布

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分类专栏： arduino源程序

本文链接：https://blog.youkuaiyun.com/G1342522389/article/details/46271555

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int r=6;
int y=7;
int g=8;
char led;
void setup()
{
  Serial.begin(9600);
  pinMode(r,OUTPUT);
  pinMode(y,OUTPUT);
  pinMode(g,OUTPUT);
}

void loop()
{
  if (Serial.available()>0)
  {
    char i='0';
    delay(100);
    int numChar=Serial.available();
    if (numChar>10) numChar=10;
    while (numChar!=0)
    {
      led=Serial.read();
      if(led!=' '){
 i=led;
      }
      numChar=numChar-1;
    }
    splitString(i);
    Serial.flush();
  }
}

void splitString(char hi)
{
  Serial.print("Read is:");
  Serial.println(hi);
  if (hi=='R'||hi=='r'){
    digitalWrite(r,HIGH);
    digitalWrite(g,LOW); 
    digitalWrite(y,LOW); 
  } 
  else if(hi=='G'||hi=='g'){
    digitalWrite(g,HIGH);
    digitalWrite(r,LOW); 
    digitalWrite(y,LOW); 
  }
  else if(hi=='Y'||hi=='y'){
    digitalWrite(y,HIGH); 
    digitalWrite(g,LOW); 
    digitalWrite(r,LOW); 
  } 
  else {
    Serial.println("you are stupid");
    digitalWrite(y,LOW); 
    digitalWrite(g,LOW); 
    digitalWrite(r,LOW);
  }
}