70 lines
1.7 KiB
Python
70 lines
1.7 KiB
Python
|
# SPDX-FileCopyrightText: 2021 Sandy Macdonald
|
||
|
|
#
|
||
|
|
# SPDX-License-Identifier: MIT
|
||
|
|
|
||
|
|
# This example demonstrates the use of a modifier key to pick the colour of the
|
||
|
|
# keys' LEDs, as well as the LED sleep functionality.
|
||
|
|
|
||
|
|
import time
|
||
|
|
import board
|
||
|
|
import random
|
||
|
|
from keybow2040 import Keybow2040, number_to_xy
|
||
|
|
|
||
|
|
MODIFIER_KEY = 0
|
||
|
|
|
||
|
|
def hsv_to_rgb(h, s, v):
|
||
|
|
# Convert an HSV (0.0-1.0) colour to RGB (0-255)
|
||
|
|
if s == 0.0:
|
||
|
|
rgb = [v, v, v]
|
||
|
|
|
||
|
|
i = int(h * 6.0)
|
||
|
|
|
||
|
|
f = (h*6.)-i; p,q,t = v*(1.-s), v*(1.-s*f), v*(1.-s*(1.-f)); i%=6
|
||
|
|
|
||
|
|
if i == 0:
|
||
|
|
rgb = [v, t, p]
|
||
|
|
if i == 1:
|
||
|
|
rgb = [q, v, p]
|
||
|
|
if i == 2:
|
||
|
|
rgb = [p, v, t]
|
||
|
|
if i == 3:
|
||
|
|
rgb = [p, q, v]
|
||
|
|
if i == 4:
|
||
|
|
rgb = [t, p, v]
|
||
|
|
if i == 5:
|
||
|
|
rgb = [v, p, q]
|
||
|
|
|
||
|
|
rgb = [int(c * 255) for c in rgb]
|
||
|
|
|
||
|
|
return rgb
|
||
|
|
|
||
|
|
# Set up Keybow
|
||
|
|
i2c = board.I2C()
|
||
|
|
keybow = Keybow2040(i2c)
|
||
|
|
keys = keybow.keys
|
||
|
|
|
||
|
|
# Enable LED sleep and set a time of 5 seconds before the LEDs turn off.
|
||
|
|
# They'll turn back on with a tap of any key!
|
||
|
|
keybow.led_sleep_enabled = True
|
||
|
|
keybow.led_sleep_time = 5
|
||
|
|
|
||
|
|
# Set up the modifier key. It's 0, or the bottom left key.
|
||
|
|
modifier_key = keys[MODIFIER_KEY]
|
||
|
|
modifier_key.modifier = True
|
||
|
|
|
||
|
|
# The starting colour (black/off)
|
||
|
|
rgb = (0, 0, 0)
|
||
|
|
|
||
|
|
while True:
|
||
|
|
# Always remember to call keybow.update()!
|
||
|
|
keybow.update()
|
||
|
|
|
||
|
|
# If the modifier key and any other key are pressed, then set all the
|
||
|
|
# keys to the selected colour. The second key pressed picks the colour.
|
||
|
|
if modifier_key.held and keybow.any_pressed:
|
||
|
|
if len(keybow.get_pressed()) > 1:
|
||
|
|
hue = max(keybow.get_pressed()) / 15.0
|
||
|
|
rgb = hsv_to_rgb(hue, 1.0, 1.0)
|
||
|
|
|
||
|
|
keybow.set_all(*rgb)
|