Hello everyone!
the panel :
I have three LED panels connected in series to a Raspberry Pi 4 shield (Electrodragon shield). The text command works: sudo ./text-scroller \
--led-rows=64 \
--led-cols=128 \
--led-chain=3 \
--led-parallel=1 \
--led-gpio-mapping=regular \
--led-slowdown-gpio=4 \
--led-no-hardware-pulse \
--led-brightness=50 \
-f ../fonts/9x15B.bdf \
-y 32 \
“Hello everyone!”
But for images and videos, it displays two black bars on the screens.
I’ve tried extensively, and also with DeepSeek (AI), but I still have the same problem.with this command:
sudo ./led-image-viewer
–led-rows=64
–led-cols=128
–led-chain=3
–led-parallel=1
–led-gpio-mapping=regular
–led-slowdown-gpio=4
–led-no-hardware-pulse
–led-brightness=50
-w5
/home/pi/test_3_panneau.png
the result is:
And my shield :
Thanks in advance et good day
