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@deckerego
Last active Nov 22, 2020
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A busy/free desktop indicator for the Adafruit Circuit Playground Express. See https://github.com/deckerego/busy-free_indicator for the full version.
import board
import digitalio
import storage
# Only allow code.py updates when turned off
switch = digitalio.DigitalInOut(board.D7)
switch.direction = digitalio.Direction.INPUT
switch.pull = digitalio.Pull.UP
storage.remount("/", not switch.value)
import board
import simpleio
import time
import math
import random
import adafruit_lis3dh
from busio import I2C
from analogio import AnalogIn
from digitalio import DigitalInOut, Direction, Pull
from neopixel import NeoPixel
# NeoPixels
pixels = NeoPixel(board.NEOPIXEL, 10, brightness=1.0, auto_write=False)
# Light indicator
light = AnalogIn(board.LIGHT)
# Accelerometer
i2c = I2C(board.ACCELEROMETER_SCL, board.ACCELEROMETER_SDA)
int1 = DigitalInOut(board.ACCELEROMETER_INTERRUPT)
lis3dh = adafruit_lis3dh.LIS3DH_I2C(i2c, address=0x19, int1=int1)
lis3dh.range = adafruit_lis3dh.RANGE_8_G
# Toggle Switch
switch = DigitalInOut(board.SLIDE_SWITCH)
switch.direction = Direction.INPUT
switch.pull = Pull.UP
switch_state = switch.value
# Button A
button_a = DigitalInOut(board.BUTTON_A)
button_a.direction = Direction.INPUT
button_a.pull = Pull.DOWN
button_a_state = False
# Button B
button_b = DigitalInOut(board.BUTTON_B)
button_b.direction = Direction.INPUT
button_b.pull = Pull.DOWN
button_b_state = False
def check_inputs(shake_delay=0.1):
global switch_state, button_a_state, button_b_state
global timeout_seconds
if button_a.value is not button_a_state:
button_a_state = button_a.value
if button_a_state: press_a()
if button_b.value is not button_b_state:
button_b_state = button_b.value
if button_b_state: press_b()
if switch.value is not switch_state:
switch_state = switch.value
flip_switch()
if lis3dh.shake(shake_threshold=15, avg_count=3, total_delay=shake_delay):
shaken()
if timeout_seconds < 0: timeout()
def shaken():
if timeout_seconds > 0:
timeout()
def press_a():
global timeout_seconds
timeout_seconds += SECONDS_PER_CLICK
if timeout_seconds > SECONDS_PER_CLICK * 10:
timeout_seconds = SECONDS_PER_CLICK * 10
def press_b():
global timeout_seconds
global shader_index
autoset_brightness()
if timeout_seconds > 0:
timeout_seconds -= SECONDS_PER_CLICK
else:
shader_index = (shader_index + 1) % len(SHADERS)
def timeout():
global timeout_seconds
timeout_seconds = 0
autoset_brightness()
def flip_switch():
global power
autoset_brightness()
if switch_state:
power = True
else:
if power:
power = False
pixels.fill((0, 0, 0))
pixels.brightness = 0.0
pixels.show()
def elapsed_seconds():
global last_time_seconds
current_seconds = time.time()
elapsed_seconds = current_seconds - last_time_seconds
last_time_seconds = current_seconds
return elapsed_seconds
def event_sleep(seconds):
global timeout_seconds
check_inputs(seconds)
time.sleep(seconds)
if timeout_seconds > 0: timeout_seconds -= elapsed_seconds()
def autoset_brightness():
pixels.brightness = round(simpleio.map_range(light.value, 800, 60000, 5, 100) / 100.0, 2)
def show_timer(shader):
global timeout_seconds
timeout_segments = 0 if timeout_seconds < 0 else math.ceil(timeout_seconds / SECONDS_PER_CLICK)
for frame in range(10):
frame_sleep = shader(frame, timeout_segments)
pixels.show()
event_sleep(frame_sleep)
def shader_rotate(frame, timeout_segments):
gamma_palette = (1, 0.05, 0) if timeout_segments > 0 else (0.05, 0.2, 1)
for pixel in range(timeout_segments, 10):
color = 55 + (pixel * 20)
pixels[(pixel + frame) % 10] = list(map(lambda g: math.ceil(color * g), gamma_palette))
for pixel in range(timeout_segments):
pixels[pixel] = (204, 61, 61)
return 0.05
def shader_breathe(frame, timeout_segments):
gamma_palette = (1, 0.05, 0) if timeout_segments > 0 else (0.05, 0.2, 1)
idx = frame if frame < 5 else 10 - frame
color = 15 + (idx * 24)
for pixel in range(timeout_segments, 10):
pixels[pixel] = list(map(lambda g: math.ceil(color * g), gamma_palette))
for pixel in range(timeout_segments):
pixels[pixel] = (204, 61, 61)
return 0.1
def shader_sparkle(frame, timeout_segments):
for pixel in range(timeout_segments, 10):
gamma_palette = (1, 0.05, 0) if timeout_segments > 0 else (round(random.random(), 2) / 3, round(random.random(), 2), 1.0)
color = 15 + ((pixel & 3) * 80)
pixels[random.randrange(10)] = list(map(lambda g: math.ceil(color * g), gamma_palette))
for pixel in range(timeout_segments):
pixels[pixel] = (204, 61, 61)
return 0.05
def shader_rainbow(frame, timeout_segments):
for pixel in range(timeout_segments, 10):
if timeout_segments > 0:
color = 55 + (pixel * 20)
pixels[(pixel + frame) % 10] = list(map(lambda g: math.ceil(color * g), (1, 0.05, 0)))
else:
color = (0, 0, 0)
base = (pixel % 3) * 60
if pixel <= 2 or pixel == 9: color = (100 - int(base / 2), base, 0)
elif pixel <= 5: color = (0, 200 - base, base)
else: color = (base, 0, 200 - base)
pixels[(pixel + frame) % 10] = color
for pixel in range(timeout_segments):
pixels[pixel] = (204, 61, 61)
return 0.05
# Constants
SECONDS_PER_CLICK = 60 * 15
SHADERS = [shader_rotate, shader_breathe, shader_sparkle, shader_rainbow]
# Default state
power = switch_state
last_time_seconds = time.time()
timeout_seconds = 0
shader_index = 0
autoset_brightness()
while True:
if power:
show_timer(SHADERS[shader_index])
else:
event_sleep(1.0)
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@deckerego deckerego commented Nov 4, 2020

Requires lib/adafruit_lis3dh.mpy and lib/simpleio.mpy from the CircuitPython Library collection.

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@deckerego deckerego commented Nov 4, 2020

Parts list:

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@deckerego deckerego commented Nov 5, 2020

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@deckerego deckerego commented Nov 17, 2020

Just added: hit button B while idle and it will change the pattern of the lights!

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@deckerego deckerego commented Nov 22, 2020

The full-fledged project is now being updated at https://github.com/deckerego/busy-free_indicator - see updates there!

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