Pride Flags POV Wand
Pride Month is here! Wave a Pride flag and spread some love!
Project Files
Code
"""
Raspberry Breadstick Pride Month POV Display
learn.breadstick.ca
Michael Rangen
May 28, 2024
Breadstick Innovations is owned by a couple of gay engineering technologists.
June is Pride Month, a time to celebrate all the LGBTQ2S+ people in our vast community!
To anyone who needs to hear this - I am proud of you.
I'll write it here and forever - Love is love <3
Use these pride flags to spread some love!
"""
"""
User Controls
"""
# Select a flag by uncommenting it
IMAGE_PATH = "TraditionalPrideFlag.bmp"
#IMAGE_PATH = "BiPrideFlag.bmp"
#IMAGE_PATH = "TransPrideFlag.bmp"
#IMAGE_PATH = "LesbianPrideFlag.bmp"
#IMAGE_PATH = "PansexualPrideFlag.bmp"
LED_BRIGHTNESS = 0.25
PIXEL_DELAY = 250
IMAGE_PADDING = 0
"""
Library Imports
"""
from board import *
import time
# For SK9822 LEDs
from displayio import Bitmap, Palette
import adafruit_imageload
import bitbangio
from microcontroller import delay_us
# For IMU (Gryoscope & Accellerometer)
import busio
from adafruit_lsm6ds.lsm6ds3trc import LSM6DS3TRC as LSM6DS
from adafruit_lsm6ds import Rate, AccelRange, GyroRange
# Garbage Collector
import gc
"""
LED Setup
"""
spi = bitbangio.SPI(DOTSTAR_CLOCK, DOTSTAR_DATA)
while not spi.try_lock():
pass
spi.configure(baudrate=12000000)
"""
IMAGE Setup
"""
my_bitmap, my_palette = adafruit_imageload.load(
IMAGE_PATH, bitmap=Bitmap, palette=Palette
)
columns = []
start = [0, 0, 0, 0]
end = [255, 255, 255, 255]
bright = 225 + int(LED_BRIGHTNESS * 30)
# Pad the left side of the image with black columns
for x in range(0, IMAGE_PADDING, 1):
column = []
column.extend(start)
for y in range(my_bitmap.height - 1, -1, -1):
column.append(bright)
r = 0
g = 0
b = 0
column.append(b)
column.append(g)
column.append(r)
column.extend(end)
columns.append(bytearray(column))
# Create columns from the indexed bitmap file.
# If you're getting errors about ColorConverter
# then your bitmap likely is in RGB mode.
# Open it in GIMP
# Image > Mode > Indexed > Convert
# File > Overwrite your_image.bmp
for x in range(0, my_bitmap.width, 1):
column = []
column.extend(start)
for y in range(my_bitmap.height - 1, -1, -1):
column.append(bright)
pixel = my_palette[my_bitmap[x, y]]
r = (pixel >> 16) & 0xFF
g = (pixel >> 8) & 0xFF
b = pixel & 0xFF
column.append(b)
column.append(g)
column.append(r)
column.extend(end)
columns.append(bytearray(column))
# Pad the right side of the image with black columns
for x in range(0, IMAGE_PADDING, 1):
column = []
column.extend(start)
for y in range(my_bitmap.height - 1, -1, -1):
column.append(bright)
r = 0
g = 0
b = 0
column.append(b)
column.append(g)
column.append(r)
column.extend(end)
columns.append(bytearray(column))
"""
IMU Setup
"""
i2c = busio.I2C(IMU_SCL, IMU_SDA)
IMU = LSM6DS(i2c)
IMU.accelerometer_range = AccelRange.RANGE_4G
print("Accelerometer range set to: %d G" % AccelRange.string[IMU.accelerometer_range])
IMU.gyro_range = GyroRange.RANGE_1000_DPS
print("Gyro range set to: %d DPS" % GyroRange.string[IMU.gyro_range])
IMU.accelerometer_data_rate = Rate.RATE_1_66K_HZ
print("Accelerometer rate set to: %d HZ" % Rate.string[IMU.accelerometer_data_rate])
IMU.gyro_data_rate = Rate.RATE_1_66K_HZ
print("Gyro rate set to: %d HZ" % Rate.string[IMU.gyro_data_rate])
"""
Free Up Memory
"""
gc.collect()
"""
Main Program Loop
"""
while True:
gyro_x, gyro_y, gyro_z = IMU.gyro
if abs(gyro_z) < 0.001:
gyro_z = 0.001
col_delay = abs(int(PIXEL_DELAY / gyro_z))
if gyro_z < 0:
for i in range(0, len(columns), 1):
gyro_x, gyro_y, gyro_z = IMU.gyro
if abs(gyro_z) < 0.001:
gyro_z = 0.001
col_delay = abs(int(PIXEL_DELAY / gyro_z))
if gyro_z > 0:
break
else:
spi.write(columns[i])
delay_us(col_delay)
else:
for i in range(len(columns) - 1, -1, -1):
gyro_x, gyro_y, gyro_z = IMU.gyro
if abs(gyro_z) < 0.001:
gyro_z = 0.001
col_delay = abs(int(PIXEL_DELAY / gyro_z))
if gyro_z < 0:
break
else:
spi.write(columns[i])
delay_us(col_delay)
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