Hello,
I bought a 64x32 P4 panel on Aliexpress, got it working on arduino UNO without smartmatrix shield by following the Adafruit tutorial, including wiring ( https://learn.adafruit.com/32x16-32x32-rgb-led-matrix/connecting-with-jumper-wires ). I can run the 32x32 examples but not 64x32, I guess it’s related to memory.
I would like to connect it to a Teensy 3.1 and use Fastled, is it possible ? If yes, can someone help me with the wiring, I have searched online but couldn’t find any resource
Cheers
You might post this over on the SmartMatrix community: http://community.pixelmatix.com
You can use FastLED, but you’ll still need the SmartMatrix library to handle driving the panel. It was recently updated to handle various sizes, including 64x32.
I am running one currently with the shield on a teensy 3.2
@Jason_Coon @Tom_Schubert I don’t have the shield, that’s why I’m asking here, I thought maybe someone followed the same path as me … I’m kind of broke for the moment, and cannot order the shield
I have followed these instructions for the UNO ( https://learn.adafruit.com/32x16-32x32-rgb-led-matrix/connecting-with-jumper-wires ). I have tried to run the Fastled/smartmatrix example on the UNO but it doesn’t work, I don’t know what is the equivalent for the pins on the Teensy
You don’t have to have the shield to use the library. It makes for neater wiring, adds level shifters, SD card, etc.
You will need a Teensy, though, as I doubt the uno has enough ram.
I’ll see if I can find the wiring diagram for the Teensy.
@Jason_Coon That’s what I thought when I ordered it, I have the teensy, level shifter and beefy power supply.
I’ll order a shield later then, it sucks on the UNO, it can’t run the 64x32, the 32x32 examples display 2 frames side by side and are very laggy … I have a Mega I ordered on Aliexpress, but it’s faulty, I never by a clone again … thank you for your help
In the meantime, I’ll print a grid on my 3d printer to have a pixel display when I’ll have it working
Here we go, found it: http://docs.pixelmatix.com/SmartMatrix/shieldref.html#smartmatrix-shield-overview-technical-details-manually-connecting-teensy-and-panel
I found this additional picture on their site, that shows the pins used on the teensy 3.1 ( red lines ) http://docs.pixelmatix.com/SmartMatrix/photos/TeensyPinout.png