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)

spinny_circle_radar.mp4

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.