If you have issues running the example, you can always test your hardware by running a UF2 for your display from https://learn.adafruit.com/adafruit-qualia-esp32-s3-for-rgb666-displays/arduino-rainbow-demo
init_sequence_tl032 = bytes((
b'\x11\x80d'
b'\xff\x05w\x01\x00\x00\x13'
b'\xef\x01\x08'
b'\xff\x05w\x01\x00\x00\x10'
b'\xc0\x02\xe5\x02'
b'\xc1\x02\x0c\n'
b'\xc2\x02\x07\x0f'
b'\xc3\x01\x02'
b'\xcc\x01\x10'
b'\xcd\x01\x08'
b'\xb0\x10\x00\x08Q\r\xce\x06\x00\x08\x08\x1d\x02\xd0\x0fo6?'
b'\xb1\x10\x00\x10O\x0c\x11\x05\x00\x07\x07\x1f\x05\xd3\x11n4?'
b'\xff\x05w\x01\x00\x00\x11'
b'\xb0\x01M'
b'\xb1\x01\x1c'
b'\xb2\x01\x87'
b'\xb3\x01\x80'
b'\xb5\x01G'
b'\xb7\x01\x85'
b'\xb8\x01!'
b'\xb9\x01\x10'
b'\xc1\x01x'
b'\xc2\x01x'
b'\xd0\x81\x88d'
b'\xe0\x03\x80\x00\x02'
b'\xe1\x0b\x04\xa0\x00\x00\x05\xa0\x00\x00\x00``'
b'\xe2\r00``<\xa0\x00\x00=\xa0\x00\x00\x00'
b'\xe3\x04\x00\x0033'
b'\xe4\x02DD'
b'\xe5\x10\x06>\xa0\xa0\x08@\xa0\xa0\nB\xa0\xa0\x0cD\xa0\xa0'
b'\xe6\x04\x00\x0033'
b'\xe7\x02DD'
b'\xe8\x10\x07?\xa0\xa0\tA\xa0\xa0\x0bC\xa0\xa0\rE\xa0\xa0'
b'\xeb\x07\x00\x01NN\xeeD\x00'
b"\xed\x10\xff\xff\x04Vr\xff\xff\xff\xff\xff\xff'e@\xff\xff"
b'\xef\x06\x10\r\x04\x08?\x1f'
b'\xff\x05w\x01\x00\x00\x13'
b'\xe8\x02\x00\x0e'
b'\xff\x05w\x01\x00\x00\x00'
b'\x11\x80x'
b'\xff\x05w\x01\x00\x00\x13'
b'\xe8\x82\x00\x0c\n'
b'\xe8\x02\x00\x00'
b'\xff\x05w\x01\x00\x00\x00'
b'6\x01\x00'
b':\x01f'
b'\x11\x80x'
b')\x80x'
))
tft_timings = {
"frequency": 16000000,
"width": 320,
"height": 820,
"hsync_pulse_width": 3,
"hsync_back_porch": 251,
"hsync_front_porch": 150,
"hsync_idle_low": False,
"vsync_pulse_width": 6,
"vsync_back_porch": 90,
"vsync_front_porch": 100,
"vsync_idle_low": False,
"pclk_active_high": False,
"pclk_idle_high": False,
"de_idle_high": False,
}
from displayio import release_displays
release_displays()
import random
import displayio
import time
import busio
import board
import dotclockframebuffer
from framebufferio import FramebufferDisplay
init_sequence_tl032 = bytes((
b'\x11\x80d'
b'\xff\x05w\x01\x00\x00\x13'
b'\xef\x01\x08'
b'\xff\x05w\x01\x00\x00\x10'
b'\xc0\x02\xe5\x02'
b'\xc1\x02\x0c\n'
b'\xc2\x02\x07\x0f'
b'\xc3\x01\x02'
b'\xcc\x01\x10'
b'\xcd\x01\x08'
b'\xb0\x10\x00\x08Q\r\xce\x06\x00\x08\x08\x1d\x02\xd0\x0fo6?'
b'\xb1\x10\x00\x10O\x0c\x11\x05\x00\x07\x07\x1f\x05\xd3\x11n4?'
b'\xff\x05w\x01\x00\x00\x11'
b'\xb0\x01M'
b'\xb1\x01\x1c'
b'\xb2\x01\x87'
b'\xb3\x01\x80'
b'\xb5\x01G'
b'\xb7\x01\x85'
b'\xb8\x01!'
b'\xb9\x01\x10'
b'\xc1\x01x'
b'\xc2\x01x'
b'\xd0\x81\x88d'
b'\xe0\x03\x80\x00\x02'
b'\xe1\x0b\x04\xa0\x00\x00\x05\xa0\x00\x00\x00``'
b'\xe2\r00``<\xa0\x00\x00=\xa0\x00\x00\x00'
b'\xe3\x04\x00\x0033'
b'\xe4\x02DD'
b'\xe5\x10\x06>\xa0\xa0\x08@\xa0\xa0\nB\xa0\xa0\x0cD\xa0\xa0'
b'\xe6\x04\x00\x0033'
b'\xe7\x02DD'
b'\xe8\x10\x07?\xa0\xa0\tA\xa0\xa0\x0bC\xa0\xa0\rE\xa0\xa0'
b'\xeb\x07\x00\x01NN\xeeD\x00'
b"\xed\x10\xff\xff\x04Vr\xff\xff\xff\xff\xff\xff'e@\xff\xff"
b'\xef\x06\x10\r\x04\x08?\x1f'
b'\xff\x05w\x01\x00\x00\x13'
b'\xe8\x02\x00\x0e'
b'\xff\x05w\x01\x00\x00\x00'
b'\x11\x80x'
b'\xff\x05w\x01\x00\x00\x13'
b'\xe8\x82\x00\x0c\n'
b'\xe8\x02\x00\x00'
b'\xff\x05w\x01\x00\x00\x00'
b'6\x01\x00'
b':\x01f'
b'\x11\x80x'
b')\x80x'
))
board.I2C().deinit()
i2c = busio.I2C(board.SCL, board.SDA, frequency=400_000)
tft_io_expander = dict(board.TFT_IO_EXPANDER)
#tft_io_expander['i2c_address'] = 0x38 # uncomment for rev B
dotclockframebuffer.ioexpander_send_init_sequence(i2c, init_sequence_tl032, **tft_io_expander)
i2c.deinit()
tft_pins = dict(board.TFT_PINS)
tft_timings = {
"frequency": 16000000,
"width": 320,
"height": 820,
"hsync_pulse_width": 3,
"hsync_back_porch": 251,
"hsync_front_porch": 150,
"hsync_idle_low": False,
"vsync_pulse_width": 6,
"vsync_back_porch": 90,
"vsync_front_porch": 100,
"vsync_idle_low": False,
"pclk_active_high": False,
"pclk_idle_high": False,
"de_idle_high": False,
}
#bitmap = displayio.OnDiskBitmap("/display-ruler-720p.bmp")
bitmap = displayio.Bitmap(256, 7*64, 65535)
fb = dotclockframebuffer.DotClockFramebuffer(**tft_pins, **tft_timings)
display = FramebufferDisplay(fb, auto_refresh=False)
# Create a TileGrid to hold the bitmap
tile_grid = displayio.TileGrid(bitmap, pixel_shader=displayio.ColorConverter(input_colorspace=displayio.Colorspace.RGB565))
# Create a Group to hold the TileGrid
group = displayio.Group()
# Add the TileGrid to the Group
group.append(tile_grid)
# Add the Group to the Display
display.root_group = group
display.auto_refresh = True
for i in range(256):
b = i >> 3
g = (i >> 2) << 5
r = b << 11
for j in range(64):
bitmap[i, j] = b
bitmap[i, j+64] = b|g
bitmap[i, j+128] = g
bitmap[i, j+192] = g|r
bitmap[i, j+256] = r
bitmap[i, j+320] = r|b
bitmap[i, j+384] = r|g|b
# Loop forever so you can enjoy your image
while True:
time.sleep(1)
display.auto_refresh = False
group.x = random.randint(0, 32)
group.y = random.randint(0, 32)
display.auto_refresh = True
pass
Go ahead and save the example you your CircuitPython code.py and run the code. Your display should now look like this:
Page last edited March 08, 2024
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