print('Animating pixels for 10 seconds...')
for offset in range(10000):
# Go through each pixel and set its color based on its position and the
# current offset. Constrain these values to fall within the list of colors.
for i in range(12):
# Find the color for this pixel.
color = colors[(i + offset) % len(colors)]
# Set the pixel color.
board.set_pixel(i, (offset - 0) % 255, (offset - 50) % 255,
(offset - 100) % 255)
# board.show_pixels()
# Push the updated colors out to the pixels (this will make the pixels change
# their color, the previous set_pixel calls just change the memory and not
# the pixels).
board.show_pixels()
time.sleep(0.01)
if (offset % nframes == 0):
finish_frame_time = time.time()
print("Frame rate = ",
int(nframes / (finish_frame_time - start_frame_time)), " fps")
start_frame_time = time.time()
# Sleep for a bit between iterations.
# time.sleep(0.01)
# Clear all the pixels to turn them off.
board.clear_pixels()
board.show_pixels() # Make sure to call show after clear!
# time.sleep(0.01) # Small delay to make sure board connection doesn't close
# before previous command is processed.
# to higher brightness because the color information is 'lost'. It's best to
# just call set brightness once at the start to set a good max brightness instead
# of trying to make animations with it.
board.set_pixel_brightness(50)
# Animate moving the colors across the pixels 100 times / 10 seconds.
print('Animating pixels for 10 seconds...')
for offset in range(100):
# Go through each pixel and set its color based on its position and the
# current offset. Constrain these values to fall within the list of colors.
for i in range(10):
# Find the color for this pixel.
color = colors[(i+offset)%len(colors)]
# Set the pixel color.
board.set_pixel(i, color[0], color[1], color[2])
# Push the updated colors out to the pixels (this will make the pixels change
# their color, the previous set_pixel calls just change the memory and not
# the pixels).
board.show_pixels()
# Sleep for a bit between iterations.
time.sleep(0.1)
# Clear all the pixels to turn them off.
board.clear_pixels()
board.show_pixels() # Make sure to call show after clear!
time.sleep(0.1) # Small delay to make sure board connection doesn't close
# before previous command is processed.
# Close Firmata board connection when done.
board.close()
# The buttons/switches on Circuit Playground use these pins:
# - Left button = Digital pin 4
# - Right button = Digital pin 19
board.set_pin_mode(4, board.INPUT, board.DIGITAL, left_changed)
board.set_pin_mode(19, board.INPUT, board.DIGITAL, right_changed)
# Animate moving the colors across the pixels 100 times / 10 seconds.
print('Animating pixels...')
print('Press left button to cycle colors and right button to cycle speeds.')
while True:
frequency = FREQUENCIES[current_frequency]
c0_red, c0_green, c0_blue = COLORS[current_color][0]
c1_red, c1_green, c1_blue = COLORS[current_color][1]
t = time.time()
# Go through each pixel and interpolate its color using a sine wave with
# phase offset based on pixel position.
for i in range(10):
phase = (i / 10.0) * 2.0 * math.pi
x = math.sin(2.0 * math.pi * frequency * t + phase)
red = int(lerp(x, -1.0, 1.0, c0_red, c1_red))
green = int(lerp(x, -1.0, 1.0, c0_green, c1_green))
blue = int(lerp(x, -1.0, 1.0, c0_blue, c1_blue))
# Set the pixel color.
board.set_pixel(i, red, green, blue)
# Push the updated colors out to the pixels (this will make the pixels change
# their color, the previous set_pixel calls just change the memory and not
# the pixels).
board.show_pixels()
# Sleep for a bit between iterations.
time.sleep(0.01)
