And now, that you have not just the keyboard, but a device like this connected via USB can you do something like this, like a former student did.

有键盘，还有一个连上USB的设备,你就可以做一些事情了，先前有一个学生就做过。

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like Bluetooth and USB and HMI, which is human machine interfaces,

例如蓝牙，USB，还有一个被称为人工机器接口的HMI，

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