# Electrodragon RGB Matrix V2 port orientation

**URL:** <https://rpi-rgb-led-matrix.discourse.group/t/electrodragon-rgb-matrix-v2-port-orientation/491>\
**Category:** Uncategorized\
**Created:** [May 19, 2022, 3:40am UTC](https://rpi-rgb-led-matrix.discourse.group/t/electrodragon-rgb-matrix-v2-port-orientation/491 "2022-05-19T03:40:29Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![wazsxr](https://avatars.discourse-cdn.com/v4/letter/w/9e8a1a/32.png) [@wazsxr](https://rpi-rgb-led-matrix.discourse.group/u/wazsxr)\
**Post date:** [May 19, 2022, 3:40am UTC](https://rpi-rgb-led-matrix.discourse.group/t/electrodragon-rgb-matrix-v2-port-orientation/491/1 "2022-05-19T03:40:29Z")

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Hi,  
I’ve just moved over to rpi-rgb-led-matrix package from SmartMatrix, mainly because I want to go bigger than the SmartMatrix can handle.  
I ordered the Electrodragon RGB matrix V2 board as I saw a few users here were using it and it can drive the 9x64x64 panels I have. I can’t seem to get the board working right, it seems to be the middle parallel chain is a bit off. It’s mainly black with a few pixels lighting up sometimes. From the limited number of pictures I can find of this board, all three ports are facing the same way with the notch on top. My one has the middle port with the notch on the bottom (see pic). Is this normal or do I have a “special” board? Thank you, I’m sure I’ll be back again for more noob advice.

 ![electrodragon](https://global.discourse-cdn.com/free1/uploads/rpi_rgb_led_matrix/original/1X/91c7fe945a24121a22186de8d6fbfe15d95b11ac.jpeg)

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**Author:** ![marcmerlin](https://yyz2.discourse-cdn.com/free1/user_avatar/rpi-rgb-led-matrix.discourse.group/marcmerlin/32/40_2.png) [@marcmerlin](https://rpi-rgb-led-matrix.discourse.group/u/marcmerlin)\
**Post date:** [July 2, 2022, 4:25pm UTC](https://rpi-rgb-led-matrix.discourse.group/t/electrodragon-rgb-matrix-v2-port-orientation/491/2 "2022-07-02T16:25:22Z")

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It looks like your board was built wrong, the 3 notches are supposed to point up. You could cut a hole at the top and put the connector the same way up than the other ones, I think it may work

Also, if you have smartmatrix code, I recommend you look at my lib to run your arduino code both on smartmatrix and rPi:

> **[Marc's Blog: arduino - Framebuffer::GFX, Choosing between its 3 2D APIs:...](http://marc.merlins.org/perso/arduino/post_2020-03-16_Framebuffer_GFX_-Choosing-between-its-3-2D-APIs_-FastLED-XY_-NeoMatrix_-and-LEDMatrix_-and-detail-of-its-many-supported-hardware-backends.html)**

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**Author:** ![weins3](https://avatars.discourse-cdn.com/v4/letter/w/c68b51/32.png) [@weins3](https://rpi-rgb-led-matrix.discourse.group/u/weins3)\
**Post date:** [January 31, 2025, 11:20am UTC](https://rpi-rgb-led-matrix.discourse.group/t/electrodragon-rgb-matrix-v2-port-orientation/491/3 "2025-01-31T11:20:49Z")

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> [@wazsxr](#):
>
> Hi,  
> I’ve just moved over to rpi-rgb-led-matrix package from SmartMatrix, mainly because I want to go bigger than the SmartMatrix can handle.  
> I ordered the Electrodragon RGB matrix V2 board as I saw a few users here were using it and it can drive the 9x64x64 panels I have. I can’t seem to get the board working right, it seems to be the middle parallel chain is a bit off. It’s mainly black with a few pixels lighting up sometimes. From the limited number of pictures I can find of this board, all three ports are facing the same way with the notch on top. My one has the middle port with the notch on the bottom (see pic). Is this normal or do I have a “special” board? Thank you, I’m sure I’ll be back again for more noob advice.

in your matrix led panel its 64x64 or hihger its probably that have E line, in your matrix v2 board you need solder 2 pins, look the back of your matrix panel and see the pins, if you have a pin with the name E need solder, if the pin of E its 4 you need solder in the v2 board the pin 4 to E and the pin 8 to gnd, if the line E its the pin 8 then 8 with E and 4 with gnd.

 ![603622939dfc411114e3e94bc95f44e675b3bea3_2_375x500](https://global.discourse-cdn.com/free1/uploads/rpi_rgb_led_matrix/original/1X/d30d34cf68842e4f98436cfc23cbd07d4b01ef6d.jpeg)  
visit this url

> **[Adafruit RGB Matrix + Real Time Clock HAT for Raspberry Pi](https://learn.adafruit.com/adafruit-rgb-matrix-plus-real-time-clock-hat-for-raspberry-pi/driving-matrices#step-2982421)**
>
> You can now create a dazzling display with your Raspberry Pi with the Adafruit RGB Matrix HAT. This HAT plugs into your Pi and makes it super easy to control RGB matrices such as those we stock in the shop and create a colorful scrolling display or...