A C# wrapper for driving HUB75 RGB LED matrix panels on the Raspberry Pi 5 @raspberry_pi Pi5MatrixSharp is a C# wrapper for driving HUB75 RGB LED matrix panels on the Raspberry Pi 5 using Adafruit...

#LED #Matrix #LEDs #Raspberry #Pi #Raspberry #Pi #5 #HUB75 #piomatter

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While waiting for VHCT translators, ideas keep popping. 💡
​Refactored #HUB75 row Interlacing to just (START_LINE, STEP):
🔹 STEP = 0: Bit-Reversal (Auto-handles non-2^N panels like my 96x48 with SCAN=24)
🔹 STEP > 0: Arithmetic stride. Auto-injects offsets on wrap if GCD(SCAN, STEP) > 1.

#hub75 hitting so many walls. Goals i set will have to change. 🤷‍♂️

I set goals for my RP2350 HUB75 driver project:
▶️13-bit/col render buffer
▶️2 cascaded PIOs + 2x frame buffer
▶️BCM, also bottom 3 bitplanes PWMed
▶️ASM parallel 4x4px RGB-shuffling on Core 1
▶️Vsync + Active FB outputs
▶️DMA interrupt-free
▶️0 CPU cost for static output
#RP2350 #Embedded #HUB75

Open Source Framework Aims To Keep Tidbyt Afloat We recently got a note in the tips line from [Tavis Gustafson], who is one of the developers of Tronbyt — a replacement firmware and self-hosted backend that breaks the Tidbyt smart display free from its cloud dependency. When they started the project, [Tavis] says the intent was simply to let privacy-minded users keep their data within the local network, which was itself a goal worthy enough to be featured on these pages. But now that Tidbyt has been acquired by Modal and has announced they’ll no longer be producing new units, things have shifted slightly. While the press release says that the Tidbyt backend is going to stay up and running for existing customers, the writing is clearly on the wall. It’s now possible that the Tronbyt project will be able to keep these devices from ending up in landfills when the cloud service is inevitably switched off, especially if they can get the word out to existing users before then. What’s that? You say you haven’t heard of Tidbyt? Well, truth be told, neither had we. So we did some digging, and this is where things get _really_ interesting. A look inside the original Tidbyt. It turns out, Tidbyt started its life as a project on Hackaday.io by [Rohan Singh] back in 2020. The hardware consists of a 64×32 HUB75 LED panel and a small custom PCB holding an ESP32 inside of a wooden box, and while it doesn’t appear to have ever been an open source device per se, how it worked internally was hardly a secret. The software side of things however _was_ released on GitHub, which likely made creating the custom firmware that much easier for [Travis] and co. By March of 2021, Tidbyt was on Kickstarter, where it blew past its goal in 48 hours and ultimately brought in just shy of one million dollars. In October of 2023, they were back on Kickstarter with a second generation of Tidbyt hardware, and this time brought in even more money than the first time. So what’s the takeaway from all of this? Well, first of all we can’t believe this whole thing was developed right under our noses without us even realizing it. This seems like a good time as any to remind folks to drop us a line if you’re working on something cool and you want to share it with the class. We would’ve loved to connect with [Rohan] as Tidbyt was on the rise. Rohan Singh (center) poses with Modal founders, three years after posting the project on Hackaday.io But more importantly, it’s a great example of just how much better devices that were developed in the open can weather a storm than their proprietary counterparts. [Rohan] kept enough of Tidbyt open to the community that they were able to successfully create their own firmware and backend — a decision which now might end up being the only thing keeping some of these devices up and running in the future. Oh yeah, and keep starting awesome projects on Hackaday.io and turning them into multi-million dollar ventures too. We like that also.

Open Source Framework Aims to Keep Tidbyt Afloat We recently got a note in the tips line from [Ta...

hackaday.com/2025/03/29/open-source-f...

#home #hacks #Software #Hacks #custom #firmware #HUB75 #IoT #Tidbyt

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