rorosaurus / esp32-hub75-driver

A small, simple, passive driver for HUB75 based LED panels

👋 Hello world, I’m Rory! I write code and design circuitry! 👨‍💻

👀 I’m interested in full stack, web dev, firmware/hardware, mobile apps, and right-to-repair!

👨‍🎓 I’m probably currently learning about next hot microprocessor (and imagining possibilities)!

🤝 I’m always looking to collaborate on LED art projects or retro hardware renewal!

💭 I document my projects and thoughts on my personal website, roryhay.es!

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esp32-hub75-driver's Issues

Increase data pins trace width

All the traces should be a little wider.

3v3 and GND for the top right especially.

Suggestion: Connector mode 0 pin placement

Hi @rorosaurus,

Great work on the PCB! I've used a board in connector 1 mode for some testing and just soldered a board in connector 0 mode and stumbled upon some clearance issues with the frame attached to the displays I have on hand:

There is simply not enough room to properly seat the PCB when the frame is present. I'm planning on 3D printing a stand that attaches to the frame of the display, so I would need to properly seat the PCB.

I'm using generic P3 displays sold on e.g. AliExpress such as these

Perhaps moving the connector pins way to the left (when viewing the board from the top seated on the PCB) could fix the clearance issues with frames. Some displays need around 8mm additional space according to my measurements while others need 5mm (only have a handful displays)

Also a power barrel jack might be worth considering for future revisions?

Thanks

Change capacitor pin orientation

Add logo and label optional pins

Missing Example

Can you provide a complete, ultra simplistic example that is known to work with the ESP32 and your shield?

As this is the first time I'm trying to use the ESP32 rather than Teensy with SmartMatrix, I'm not sure if the issues I'm seeing relate to something wrong with my build of the shield or the code I'm using on the ESP32

I'm just getting very dim flickering. I've only soldered up the first of the 5 boards I ordered in mode1, no extra components. ESP32 on USB PSU and panel on it's own PSU. I see no reference to needing common ground or similar. I can't see any bad solder joints or anything

Allow option for HUB75 socket output?

Consider a 3 column output pin design, so you can choose between:

1. Female Pin Header 2X8 so you can directly plug into LED panel
2. 16P IDC Socket so you can use a normal ribbon cable to connect

Or maybe relocate the output some place so we can consolidate vertical space requirements?

ESP32-S3 Support

Do you know if a board that uses the newer S3 chip that fits into your driver board or would you consider creating a new version that is compatible?

Align the pins more precisely