HID USB键盘单片机固件程序，能实现键盘输入的功能-HID USB keyboard firmware single-chip, to achieve the functions of keyboard input

CH375模拟HID键盘功能，免驱动，自动上传字符，通用性好，输入光标在那，就可把字符输入到那。-CH375 simulated HID keyboard function, free drive, automatically upload characters, common good, enter the cursor in that, you can go there to character input.

串口发送协议控制HID键盘输入对应协议数据(Serial port sending protocol controls HID keyboard input corresponding to protocol data.)