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Control all pixel leds and Set color of one pixel!!!

1

I want to control one pixel led by controlling arduino . but i only can cntrol all pixel leds . The procedure for controlling all lights is as follows. I'm...

How to change BING speech api recognize language？

2

I can't change the language,i have modified the program.but it also can't recognize chinese.

How to control the LED?

2

i can't control the LED with using respeaker core v1.0 ,how can i control the LED in python.