1：定時(shí)器控制小鍵盤的亮滅，發(fā)送數(shù)據(jù)0x57,0xAB,0x12,0x00,0x00,0x00,0x00,0x01,0x07,0xAC,0x20和0x57,0xAB,0x12,0x00,0x00,0x00,0x00,0x00,0x07,0xAC,0x20

2：按下鍵盤任意按鍵，如數(shù)字“1”，串口收到兩次“1”按下的命令，偶爾也是收到一次

3：數(shù)據(jù)見(jiàn)上圖

如果不開(kāi)啟小鍵盤亮滅，鍵盤按下正常，請(qǐng)問(wèn)應(yīng)該如何處理？