Is it possible to change the brighness on the fly for Adafruit_CircuitPython_NeoPixel

Question

Is it possible to change the brightness on the fly for Adafruit_CircuitPython_NeoPixel ?

It seems to be possible in a C library but no in python.

Thanks, mcb

score 0 · Answer 1 · answered Nov 22 '21 at 21:19

0

neopixel derives from Pypixelbuf, and inherits a brightness property from that module. Did you try it?

answered Nov 22 '21 at 21:19

Tim Roberts

Well, I only can set the brightness when I initiate NeoPixel: pixels = neopixel.NeoPixel( pixel_pin, pixel_width * pixel_height, brightness=0.1, auto_write=False, ) and I use PixelFramebuffer. Here I could not find any brightness setting – eemceebee Nov 24 '21 at 16:23
Did you try `pixels.brightness = 0.75`? I can't try this, but looking at the base class source, that should work. – Tim Roberts Nov 24 '21 at 18:28

score 0 · Answer 2 · edited Jul 18 '23 at 14:21

0

You have to deinit() the pixel object and reinitialize it with the new brightness.

pixel.deinit()
pixel = neopixel.NeoPixel(pixel_pin, number_pixel, brightness=new brightness)

edited Jul 18 '23 at 14:21

Maria K

answered Jul 14 '23 at 09:50

Sinai

2 Answers2