adafruit-mirror/Adafruit_Learning_System_Guides
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

kleen up

Browse source
This commit is contained in:
ladyada 2017-09-28 23:08:03 -04:00
parent fd5f4e2cc5
commit b7692eac46
1 changed files with 16 additions and 22 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

38
Introducing_Gemma_M0/Gemma_DotStar.py
View file

@ -1,51 +1,45 @@
# Gemma IO demo - Dotstar # Gemma IO demo - Dotstar
from digitalio import * import board
from board import * import adafruit_dotstar
import dotstar
import time import time
numpix = 64 numpix = 64
strip = dotstar.DotStar(D2, D0, numpix, brightness=0.2) strip = adafruit_dotstar.DotStar(board.D2, board.D0, numpix, brightness=0.2)
led = DigitalInOut(D13)
led.direction = Direction.OUTPUT
def wheel(pos): def wheel(pos):
# Input a value 0 to 255 to get a color value. # Input a value 0 to 255 to get a color value.
# The colours are a transition r - g - b - back to r. # The colours are a transition r - g - b - back to r.
if (pos < 0): if (pos < 0) or (pos > 255):
return [0, 0, 0] return (0, 0, 0)
if (pos > 255):
return [0, 0, 0]
if (pos < 85): if (pos < 85):
return [int(pos * 3), int(255 - (pos*3)), 0] return (int(pos * 3), int(255 - (pos*3)), 0)
elif (pos < 170): elif (pos < 170):
pos -= 85 pos -= 85
return [int(255 - pos*3), 0, int(pos*3)] return (int(255 - pos*3), 0, int(pos*3))
else: else:
pos -= 170 pos -= 170
return [0, int(pos*3), int(255 - pos*3)] return (0, int(pos*3), int(255 - pos*3))
def rainbow_cycle(wait): def rainbow_cycle(wait):
for j in range(255): for j in range(255):
for i in range(len(strip)): for i in range(len(strip)):
idx = int ((i * 256 / len(strip)) + j) idx = int ((i * 256 / len(strip)) + j)
strip[i] = wheel(idx & 255) strip[i] = wheel(idx & 255)
strip.write() strip.show()
time.sleep(wait) time.sleep(wait)
while True: while True:
strip.fill([255, 0, 0]) strip.fill((255, 0, 0))
strip.write() strip.show()
time.sleep(1) time.sleep(1)
strip.fill([0, 255, 0]) strip.fill((0, 255, 0))
strip.write() strip.show()
time.sleep(1) time.sleep(1)
strip.fill([0, 0, 255]) strip.fill((0, 0, 255))
strip.write() strip.show()
time.sleep(1) time.sleep(1)
rainbow_cycle(0) rainbow_cycle(0.001) # high speed rainbow cycle w/1ms delay per sweep