现在1.7.3的bug已经修复了 
can you confirm if your keyboard works to wake up a sleeping computer (in other words, does the microcontroller get enough power to trigger the computer to wake up, like a standard keyboard)?
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Yes, it simulates the keys on the keyboard.
HID only work from CPython. But it’s pretty limited for other functionality. For example, I2C slave is not supported. So, you can not talk to XIAO from another (more intelligent) board.
spi slave ?
yes - I can confirm it can wake up a sleeping computer (at least on a mac!)
Can you help out with an example of that?