APA102驱动

sunlichao

1. from machine import Pin
   
2. from apa102 import APA102
   
3. clock = Pin(14, Pin.OUT)     # set GPIO14 to output to drive the clock
   
4. data = Pin(13, Pin.OUT)      # set GPIO13 to output to drive the data
   
5. apa = APA102(clock, data, 8) # create APA102 driver on the clock and the data pin for 8 pixels
   
6. apa[0] = (255, 255, 255, 31) # set the first pixel to white with a maximum brightness of 31
   
7. apa.write()                  # write data to all pixels
   
8. r, g, b, brightness = apa[0] # get first pixel colour

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