12
Beginner
Product guide
Glide on over to some Rainbows
PyLeap will list the device enabled guides, including this one. Our first stop is using Glider (wireless file transfer) inside of PyLeap to work with BundleFly on the Adafruit Learning System to bundle up and send the files on over! The files include code.py and the libraries. For this proof-of-concept we're going to toss a rainbow on over to a Circuit Playground Bluefruit Express.
# SPDX-FileCopyrightText: 2021 Phillip Torrone for Adafruit Industries
#
# SPDX-License-Identifier: MIT
import time
import board
from rainbowio import colorwheel
import neopixel
pixels = neopixel.NeoPixel(board.NEOPIXEL, 10, brightness=0.2, auto_write=False)
rainbow_cycle_demo = 1
def rainbow_cycle(wait):
for j in range(255):
for i in range(10):
rc_index = (i * 256 // 10) + j * 5
pixels[i] = colorwheel(rc_index & 255)
pixels.show()
time.sleep(wait)
while True:
if rainbow_cycle_demo:
rainbow_cycle(0.05)
Page last edited January 22, 2025
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Blink
This is Blink demo code for PyLeap.
# SPDX-FileCopyrightText: 2021 TrevKnows for Adafruit Industries
#
# SPDX-License-Identifier: MIT
import time
import board
import neopixel
pixels = neopixel.NeoPixel(board.NEOPIXEL, 10, brightness=0.2, auto_write=False)
PURPLE = (10, 0, 25)
PINK = (25, 0, 10)
OFF = (0,0,0)
while True:
pixels.fill(PURPLE)
pixels.show()
time.sleep(0.5)
pixels.fill(OFF)
pixels.show()
time.sleep(0.5)
pixels.fill(PINK)
pixels.show()
time.sleep(0.5)
pixels.fill(OFF)
pixels.show()
time.sleep(0.5)
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LED Glasses
Swirl Demo
# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
# SPDX-License-Identifier: MIT
import board
from rainbowio import colorwheel
from adafruit_is31fl3741.adafruit_ledglasses import LED_Glasses
import adafruit_is31fl3741
i2c = board.I2C() # uses board.SCL and board.SDA
# i2c = board.STEMMA_I2C() # For using the built-in STEMMA QT connector on a microcontroller
glasses = LED_Glasses(i2c, allocate=adafruit_is31fl3741.MUST_BUFFER)
wheeloffset = 0
while True:
for i in range(24):
hue = colorwheel(i * 256 // 24 + wheeloffset)
glasses.right_ring[i] = hue
glasses.left_ring[23 - i] = hue
glasses.show()
wheeloffset += 10
Sparkle Demo
# SPDX-FileCopyrightText: 2021 Rose Hooper
# SPDX-License-Identifier: MIT
import board
from adafruit_led_animation.animation.sparkle import Sparkle
from adafruit_led_animation.color import PURPLE
from adafruit_led_animation.sequence import AnimationSequence
from adafruit_is31fl3741.adafruit_ledglasses import MUST_BUFFER, LED_Glasses
from adafruit_is31fl3741.led_glasses_animation import LED_Glasses_Animation
i2c = board.I2C() # uses board.SCL and board.SDA
# i2c = board.STEMMA_I2C() # For using the built-in STEMMA QT connector on a microcontroller
glasses = LED_Glasses(i2c, allocate=MUST_BUFFER)
glasses.set_led_scaling(255)
glasses.global_current = 0xFE
glasses.enable = True
pixels = LED_Glasses_Animation(glasses)
anim2 = Sparkle(pixels, 0.05, PURPLE)
group = AnimationSequence(
anim2, advance_interval=5, auto_reset=True, auto_clear=True
)
while True:
group.animate()
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