I have access to this matrix
The Print is labeled: GC-P2.5-16S-1415-128x64-V1.1
It has 4 x 74HC254 and 8 x 10 chipone ICND2153AP Ic’s mounted
The connector is labeled like this
I have it connected to a rasperry pi zero W and powered with 4V (tried also with 5V) because i have no level shifter available atm.
No matter what settings i try, it stays all black.
Double checked the cabling several times, and was reading allot and trying many options without success. The matrix is drawing 262mA when Idle and 280mA whe i run demo -D 0 with varing parameters
Is there a chance i can get dis matrix to run? would be cool as i have access to allot of them.
What parameters should i try, is maybe level shifting mandatory with this panel?