matrix panel

knowledge

Typical wiring with RPI - for MPC1073

Connection Pin Pin Connection
- 1 2 -
[3] G1 3 4 -
[3] B1 5 6 GND
strobe 7 8 [3] R1
- 9 10 E (for 64 row matrix, 1:32)
clock 11 12 OE-
[1] G1 13 14 -
A 15 16 B
- 17 18 C
[1] B2 19 20 -
[1] G2 21 22 D (for 32 row matrix, 1:16)
[1] R1 23 24 [1] R2
- 25 26 [1] B1
- 27 28 -
[2] G1 29 30 -
[2] B1 31 32 [2] R1
[2] G2 33 34 -
[2] R2 35 36 [3] G2
[3] R2 37 38 [2] B2
- 39 40 [3] B2

corresponding pin number:

  • ROW_A = 22
  • ROW_B = 23
  • ROW_C = 24
  • ROW_D = 25
  • ROW_E = GPIO 15
  • OE = GPIO 18
  • CLK = GPIO 17
  • LAT (STROKE) = GPIO 4
  • P0 R1/G1/B1 = 11 / 27 / 7
  • P0 R2/G2/B2 = 8 / 9 / 10

  • P1 R1/G1/B1 = 12 / 5 / 6

  • P1 R2/G2/B2 = 19 / 13 / 20

  • P2 R1/G1/B1 = 8 / 2 / 3

  • P2 R2/G2/B2 = 26 / 16 / 21

ref

Extra GPIOs for MPC1073-dat

  • Toggle Switch to left side to discard using P2 chain, and use free pin GPIO2 and GPIO3

ref images

ref github

ESP32-dat based

STM32-dat based

ESP8266-dat based

RPI-dat based

RPI software

hzeller/rpi-rgb-led-matrix

trouble shooting

  • plug board into the INPUT port of HUB75-dat, not the OUTPUT port
  • double check the plugin directions
  • double check the pin definitions in the code, and make sure they are correct for your wiring
  • make sure code is running properly if you are using system like ESP32-dat

- for certain board the panel chips are not supported, please read the board wiki page for details.

ref

forum - https://rpi-rgb-led-matrix.discourse.group/t/looking-for-a-small-form-factor-3-channel-solution-smaller-than-electrodragon-active-3-board/905