關於ASCII 8bit LED

alpha

1.找8個輸出腳
2.輸出腳接 1K 電阻再接 LED 正腳 , LED負腳落地
3. unsigned char r=uart_receive()
4. if(r&0x80) //第7個 Bit
      digitalWrite(Pin, HIGH);
    else
      digitalWrite(Pin, LOW);

5. if(r&0x40) //第6個 Bit
      digitalWrite(Pin, HIGH);
    else
      digitalWrite(Pin, LOW);
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if(r&0x01) //第0個 Bit
      digitalWrite(Pin, HIGH);
    else
      digitalWrite(Pin, LOW);