Display 64x64 with app

[NewG]

Hi guys, i’m working on an android project that use a led display to show image or little Video (or GIF).
i’m new with led but i have find a le matrix that work like what i want the problem is the it is not open source (this Gearbest: Affordable Quality, Fun Shopping).

is there a way to create a led matrix 64x64 that work with a powerbank (5V 2A) ?

Thanks

[Louis]

There’s been some threads discussing the panels in those backpacks:

Modify 64x64 matrix

Hi, i need to make a led rgb matrix 64x64 pixels, 5v max 2A with bluetooth controller for my project. i searched online and i found it, is a panel used with the cinese led backpack. i buy one of this backpack and i find a led matrix panel with only one usb cable and a GD32F105RBT6 controller. i would like to modify it but i don’t find any documetation and the software is not open source, is it possible to change the MCU controller with another one ? if is not, i have make a led rgb matrix o…

Mechanical Ideas for Wearable Panel

There you go, it’s amazingly flat [IMG_20190325_195513] [IMG_20190325_195629]

Got a 64x64 pre-made RGBpanel with no visible flickering at all

I just bought one of these: https://www.gearbest.com/backpacks/pp_009594757312.html It’s a single 64x64 panel with probably some FPGA on top. The thing is that it has 0 visible flickering on my camera, it’s just perfect, you can’t tell it’s a scan matrix. My understanding is that it’s only possible with a very high refresh rate, but I remember @Louis saying that if you refresh too fast, the panel is dimmer. From my tests, it doesn’t really seem that dim. So, I’m a bit confused, how did they…

If I were going to use one of those matrices (I have one, unused BTW), I would desolder the controller, and wire up a SmartLED Shield to the matrix signals on the board. It looks like there are HUB75-compatible signals on the board. No one has posted here that they’ve tried it and it works yet.

is there a way to create a led matrix 64x64 that work with a powerbank (5V 2A) ?

I don’t think there’s much special about that matrix to make it work with a power bank. I’ve used some of my matrices (32x32 P6 is the only one I can remember trying) with a powerbank. Just watch that the brightness isn’t too high and you’ll probably have good results.

This doesn’t take care of actually needing to drive the matrix from an Android app. I don’t have many suggestions there.

[NewG]

hi,
i unsoldered the original controller and i put an ESP32.
i use this library GitHub - 2dom/PxMatrix: Adafruit GFX compatible graphics driver for LED matrix panels, i connect it like HUB75 and works but not perfectly.
i uploaded the example that are in the library and only one works!

.
i completely new in this “pixel’s world”, my goal is to create a display to reproduce an image or a little GIF that it receive from a smartphone.
i read many discussion here and i’m confuse about what type of board i need to use.
i have understood that teensy is the best option, ESP32 is much more compicated, i’m right?
Is there a teensy with bluetooh or wifi like ESP32 ?

[NewG]

i have switched to smartMatrix library, i have used AnimatedGif example and it works very well!
i think that this screen is very similar to another 64x64 1/32 but thinner