arduino怎么发送串口十六进制指令

Question

单次盘点指令：AA 00 22 00 00 22 DD

Answer 1

char tmp[] = "hello world";


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

void loop()
{
  {
    Serial.println("In DEC:");
    Serial.println(tmp[1],DEC); // tmp[1] points to 'e' of the "hello world"
    delay(500);
    Serial.println("In HEX:");
    Serial.println(tmp[1],HEX);
    delay(500);
  }
  
}