Hello,
I recently ordered a P2.5 128*64 LED display (specs below, link to exact model I have here), and am driving it with a Teensy 4.1 (with the Smartled shield), and can’t get the panels to turn on at all 
, I would appreciate any advice, I am new to ledsmartshield.
I have added some pictures below showing how I have connected it, but I am powering the panels and teensy using a 5V, 10 amp power source.
I installed the following libraries: SmartMatrix, LinkedList, Adafruit GFX Library, and Adafruit BUSIO. Then downloaded the FeatureDemo directory from the Github repo to my computer, and uploaded the code uncommenting the following few lines of code (see below).
I have tried running other examples, switching the port I connect to in the panels, and have not been able to get the panels to turn on at all, as I mentioned, I’d appreciate any advice on this. Thanks everyone!
Code:
#define USE_ADAFRUIT_GFX_LAYERS
#include <MatrixHardware_Teensy4_ShieldV5.h>
#include <SmartMatrix.h>
#define COLOR_DEPTH 24
const uint16_t kMatrixWidth = 128;
const uint16_t kMatrixHeight = 64;
const uint8_t kRefreshDepth = 36;
const uint8_t kDmaBufferRows = 4;
const uint8_t kPanelType = SM_PANELTYPE_HUB75_32ROW_MOD16SCAN;
const uint32_t kMatrixOptions = (SM_HUB75_OPTIONS_NONE);
const uint8_t kBackgroundLayerOptions = (SM_BACKGROUND_OPTIONS_NONE);
const uint8_t kScrollingLayerOptions = (SM_SCROLLING_OPTIONS_NONE);
const uint8_t kIndexedLayerOptions = (SM_INDEXED_OPTIONS_NONE);
Specs HB75 panel:
Module Size: 320x160x5.35mm
Signal Interface Mode: HUB75
Module Resolution: 128x64 pixels
Scans Mode: 1/32
Max Power Consumption: 22.5W
Gray Level: 12-16 Bits
Chip number I can read off the back: DP3364S 5A0201
