Wordle 1,704 4/6 ⬜⬜⬜⬜⬜ ⬜⬜⬜🟨🟩 ⬜🟨🟨⬜🟩 🟩🟩🟩🟩🟩

Daily Dordle #1484 4&6/7 🟨⬜⬜🟩⬜ ⬜⬜⬜🟨⬜ ⬜⬜🟨🟨⬜ ⬜🟨🟨⬜⬜ ⬜🟨⬜⬜🟩 🟨🟨⬜🟨⬜ 🟩🟩🟩🟩🟩 ⬜⬜⬜🟨🟨 ⬛⬛⬛⬛⬛ ⬜🟩🟩⬜🟩 ⬛⬛⬛⬛⬛ 🟩🟩🟩🟩🟩

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

Wordle 1,703 4/6 ⬜⬜⬜⬜🟨 🟨🟩⬜⬜🟨 🟩🟩🟩🟨🟨 🟩🟩🟩🟩🟩

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

Wordle 1,702 4/6 ⬜⬜⬜🟨⬜ 🟩⬜🟩⬜⬜ 🟩⬜🟩⬜🟨 🟩🟩🟩🟩🟩

Wordle 1,701 4/6 ⬜🟨⬜⬜⬜ 🟩🟨⬜⬜⬜ 🟩⬜🟩🟩🟩 🟩🟩🟩🟩🟩

Alas. RP2350 ✅ HUB75 ✅panels. Level shifters ❎. Found some VHCT541s locally, ordering, but the week starts with a 2-day national holiday. Extruding photons next weekend. 🤷‍♂️🛠️ P.S. Another idea, to sacrifice one GPIO (RP2350B has 48) for VSync.

Built a RP2040 HUB75 driver 2yrs ago: 2 chans, 2x buffering, and 8-10bit BCM via a single DMA stream to 2 cascaded PIO engines. 7+3 PIO instr. It was a naive try. Starting fresh with RP2350. Simplifying RGB engine and refining control engine to PWM lower bitplanes, to address the min on-time issue.

It can be highly optimized for M×8 keyboard scanning with a fixed debounce depth (e.g., 4) - small lib pending. The original idea targeted a low key count (3) with variable debouncing depth and event firing via a loop. Since abandoning event firing, I will optimize out the loop in the next iteration

Not too shabby for an ESL. Wordle 1,700 3/6 ⬜⬜🟩🟩🟩 ⬜🟩🟩🟩🟩 🟩🟩🟩🟩🟩

​The beauty of this design? It scales to an Mx8 kbd matrix. Just keep an array of state variables for rows 0..M-1. Select a row, read 8 columns into raw_sample, and pass pointers to the row's state into a modded tick. ​Efficient✅️ Simple✅️ Deterministic✅️

I'm building a 12-bit universal sequencer engine for my #HomeAutomation framework. It's a micro-interpreter that treats a binary blob as a program, params and data, to drive a beeper, haptics, fans, room LED lighting and RGB status LEDs, each with custom post-processing. #Embedded

Sneak peek at the HA project’s button controller. Extracted the parallel bit-interleaved debouncer so everyone can reuse it. Features: Symmetric (press/release), Periodic polling (high EMI immunity), Zero counters (bitwise-only), Scalable N×S matrix in a single register ⬇️

In an age of AI-cloud-dependent, wireless "IoT slop," we need a robust, open-source, decentralized, wired system. Fast, documented, and MQTT/Ethernet-free, it uses STM32 low-power nodes for total reliability and easy maintenance/setup. I’m working on one. 🛠️⚡ #HomeAutomation #OpenSource