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| author | Gabe <gmp@h4xmb.org> | 2017-09-27 15:49:51 -0400 |
|---|---|---|
| committer | Damien George <damien.p.george@gmail.com> | 2017-10-04 10:35:22 +1100 |
| commit | 9e0cdb22f1a549d5e542418a3007c756cd594b84 (patch) | |
| tree | e0df1785e268b94b1b6908a78425fd8a163f8231 /docs/esp8266/tutorial/neopixel.rst | |
| parent | 3289b9b7a76a1230b6bb631e191a47bfc6c7a8ee (diff) | |
| download | micropython-9e0cdb22f1a549d5e542418a3007c756cd594b84.tar.gz micropython-9e0cdb22f1a549d5e542418a3007c756cd594b84.zip | |
docs/esp8266/tutorial: Update neopixel with example of using 4 bbp.
Diffstat (limited to 'docs/esp8266/tutorial/neopixel.rst')
| -rw-r--r-- | docs/esp8266/tutorial/neopixel.rst | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/docs/esp8266/tutorial/neopixel.rst b/docs/esp8266/tutorial/neopixel.rst index 245aed6d46..a1537526f3 100644 --- a/docs/esp8266/tutorial/neopixel.rst +++ b/docs/esp8266/tutorial/neopixel.rst @@ -20,6 +20,20 @@ To set the colour of pixels use:: >>> np[1] = (0, 128, 0) # set to green, half brightness >>> np[2] = (0, 0, 64) # set to blue, quarter brightness +For LEDs with more than 3 colours, such as RGBW pixels or RGBY pixels, the +NeoPixel class takes a ``bpp`` parameter. To setup a NeoPixel object for an +RGBW Pixel, do the following:: + + >>> import machine, neopixel + >>> np = neopixel.NeoPixel(machine.Pin(4), 8, bpp=4) + +In a 4-bpp mode, remember to use 4-tuples instead of 3-tuples to set the colour. +For example to set the first three pixels use:: + + >>> np[0] = (255, 0, 0, 128) # Orange in an RGBY Setup + >>> np[1] = (0, 255, 0, 128) # Yellow-green in an RGBY Setup + >>> np[2] = (0, 0, 255, 128) # Green-blue in an RGBY Setup + Then use the ``write()`` method to output the colours to the LEDs:: >>> np.write() |