32x32 led matrix dual display

hzeller / rpi-rgb-led-matrix

Controlling up to three chains of 64x64, 32x32, 16x32 or similar RGB LED displays using Raspberry Pi GPIO

GNU General Public License v2.0

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32x32 led matrix dual display #287

Closed Abhigyanabhijeet closed 7 years ago

Abhigyanabhijeet commented 7 years ago

Hello Again,

I am using these led matrix plates and the problem with them is 1st and 9th line is internally connected so even if i write a sentence in first row it gets copied in the next row. As you can observe in picture "A W E" is repeated twice but I coded just for one row.

Is there any library change which can fix this? Thanks for responding to previous post so quickly.

Thank you Abhijeet

hzeller commented 7 years ago

Do you have a picture of your Hub75 connector on your matrix ?
What command line parameters do you give the programs you run ?
do you know the multiplexing of your matrix from its documentation?

Abhigyanabhijeet commented 7 years ago

Yes sir! I just acquired all data , here it is: A) image of Hub 75

led_matrix_socket2

In place of "CLK" its printed "S". "LAT" is replaced by "L" and "GND" at bottom right is replaced by "Dg"

B) command line is exactly this -> $ sudo ./demo -D 1 runtext.ppm

C) No documentation was provided by seller. But we have "q6d8v5" Board name mentioned

Abhigyanabhijeet commented 7 years ago

Board Name is "q6d8v5"

hzeller commented 7 years ago

Sounds like you might have a 1:8 multiplexing in a way that the second and forth stripe is just the longer part of the rest. Try --led-rows=16 --led-chain=2 and observe how things look.