spinning sorta radar based off of John Park's CircuitPython Parsec 1 Feb 2024

spinny_radar_box_code.py

import board
import displayio
import math
import time

# Set up the display
display = board.DISPLAY

# Create a blank displayio group
tilegroup = displayio.Group()

# Add the group to the display
display.show(tilegroup)

# Create a group of box bitmaps, each with a different color
num_colors = 30
palette = displayio.Palette(num_colors)
dcolor = int(255 / num_colors)  # amount of color difference per box
for i in range(num_colors):
    palette[i] = (dcolor*i) << 8 # e.g. 0x00ii00 just green
    bitmap = displayio.Bitmap(5, 5, num_colors)  # 5x5 box
    bitmap.fill(i)
    tile = displayio.TileGrid(bitmap, pixel_shader=palette)  # stick bitmap in tilegrid
    tilegroup.append(tile)  # add tilegrid to group

# Set initial position and parameters for curved motion
center_x, center_y = display.width // 2, display.height // 2
angle = 0
radius = 30

while True:

    # Compute new x,y position based off angle
    x = center_x + radius * math.sin(angle)
    y = center_y + radius * math.cos(angle)
    # Update angle for next frame
    angle += 0.2

    # Update the highest box position (-1 = last one in list)
    tilegroup[-1].x = int(x)
    tilegroup[-1].y = int(y)

    # move the last box positions down to older boxes
    for i in range(0,num_colors-1):
        tilegroup[i].x = tilegroup[i+1].x
        tilegroup[i].y = tilegroup[i+1].y

    # Update the display
    display.refresh()

    # Pause for a short time to control the speed of the animation
    time.sleep(0.05)

Very pretty and smooth animation. There are plenty of applications for something like this especially on the new round RGB666 displays or even the GC9A01.