系统的硬件电路板主要包括主控制板、显示按键板、电机驱动板。
The system hardware includes main control board, display and button board, and motor driver board.
是它能准时、实时、高效地显示按键信息，以提高工作效率和资源利用率。
Is it to be on time, real-time, efficient display key information, so as to improve the work efficiency and the utilization rate of resources.
当发送系统中的键盘中有键按下时，接收系统中的1602液晶显示屏显示按键代表的值。
When the key in the sending part is pressed by someone, the 1602LCD will display the value of the key.
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