Problems with P5 32x32 1/8 scan display

[Lookandfind]

559

Sorry I'm new to github, so i closed accidentally the Issue.

Sorry for that.

[angelogoncalve]

Try apply this options:

--led-multiplexing=1

or

--led-multiplexing=6

or

--led-multiplexing=4 --led-row-addr-type=2

or

from rgbmatrix import RGBMatrix, RGBMatrixOptions import time

options = RGBMatrixOptions() number_of_panels = 1 MATRIX_ROWS = 32 MATRIX_COLUMNS = 32 options.rows = MATRIX_ROWS / 2 options.cols = MATRIX_COLUMNS options.chain_length = 2 * number_of_panels display = RGBMatrix(options=options) height = display.height width = display.width

def chinese(x, y, red, green, blue):
    scan_rate = MATRIX_ROWS / 4

    odd8_block = (((y % (MATRIX_ROWS / 2)) / scan_rate) + 1) % 2
    num_mod_x = x / MATRIX_COLUMNS
    new_x = x + MATRIX_COLUMNS * (num_mod_x + odd8_block)
    new_y = (y % scan_rate) + scan_rate * (y / (MATRIX_ROWS / 2))
    return display.SetPixel(new_x, new_y, red, green, blue)

for x in range(0, width): for y in range(0, height): chinese(x, y, 255, 0, 0) print '({}, {})'.format(x, y) time.sleep(1)

or

from rgbmatrix import RGBMatrix, RGBMatrixOptions import time

options = RGBMatrixOptions() number_of_panels = 1 MATRIX_ROWS = 32 MATRIX_COLUMNS = 32 options.rows = MATRIX_ROWS options.cols = MATRIX_COLUMNS options.chain_length = 2 * number_of_panels display = RGBMatrix(options=options) height = display.height width = display.width

def electrodragon(x, y, red, green, blue):
    scan_rate = MATRIX_ROWS / 4
    new_x = ((x / (MATRIX_COLUMNS / 2)) * MATRIX_COLUMNS) + (x % (MATRIX_COLUMNS / 2))
    if (y / scan_rate) % 2 == 1:
        new_x += MATRIX_COLUMNS / 2
    new_y = ((y / (MATRIX_ROWS / 2)) * (MATRIX_ROWS / 2)) + (y % scan_rate)
    return display.SetPixel(new_x, new_y, red, green, blue)

for x in range(0, width):
for y in range(0, height):
electrodragon(x, y, 0, 255, 0)
print '({}, {})'.format(x, y)
time.sleep(1)

[Lookandfind]

Hi, I dont have further informations about the display i bought it over a yeahr ago on Aliexpress. But here is a picture of the back

This is a pic of using --led-multiplexing = 6

This is with --led-multiplexing=4 --led-row-addr-type=2

This is an error i get when i try to run the pythonscript:

[angelogoncalve]

I fix the bug above in the code, see please.

[Lookandfind]

This is what i get:

[angelogoncalve]

from rgbmatrix import RGBMatrix, RGBMatrixOptions import time

options = RGBMatrixOptions() number_of_panels = 1 MATRIX_ROWS = 32 MATRIX_COLUMNS = 32 options.rows = MATRIX_ROWS / 2 options.cols = MATRIX_COLUMNS options.chain_length = 2 * number_of_panels display = RGBMatrix(options=options) height = display.height width = display.width

def chinese(x, y, red, green, blue):
    scan_rate = MATRIX_ROWS / 4

    odd8_block = (((y % (MATRIX_ROWS / 2)) / scan_rate) + 1) % 2
    num_mod_x = x / MATRIX_COLUMNS
    new_x = x + MATRIX_COLUMNS * (num_mod_x + odd8_block)
    new_y = (y % scan_rate) + scan_rate * (y / (MATRIX_ROWS / 2))
    return display.SetPixel(new_x, new_y, red, green, blue)

for x in range(0, width):   
    for y in range(0, height):   
        chinese(x, y, 0, 255, 0)   
        print '({}, {})'.format(x, y)   
        time.sleep(1)   

[Lookandfind]

Thanks for your help. Now its working.

But with your py i just can illuminate half of the display