Hi There 👋

Welcome! I enjoy designing and building electronics. Here I’ll document electronics projects I work on in a bit more detail than I can do on twitter. Basically this is just the same images I put on twitter, but with some more words padding them out.

Donations are never required, but are always appreciated. You can donate via Github Sponsors ❤️

d20: Panel Photos

Introduction Shortly after completing the d20, I revised and fixed the panels so that they could be assembled without requiring the extensive rework to fix the swapped Gate/Source connections. You can find the updated files here: https://github.com/gregdavill/d20-hardware/tree/main/pcb/led-panels/d20_tri_r0.3 I’ve also released a r1.0 version, which is the same layout, but I’ve updated the SKiDL source for the design so that it correctly produces a BOM, I’ve also added some alternatives to the BOM....

July 18, 2022 · 1 min

Allwinner S3 SoC: Accelerated h.264

Introduction I’ve been using an Allwinner S3 SoC for experiments with the FLIR Boson. The description from the website sums the device up nicely: S3 is a high cost-effective video encoding processor jointly developed by Zhuhai Allwinner Technology Co., Ltd. (“Allwinner”) and Sochip Technology Co., Ltd. (“Sochip”). Its built-in single-core ARM Cortex-A7 runs at 1.2GHz with 1Gbit DRAM (DDR3) , supporting numerous peripheral devices. The Chip package is 234 balls FBGA package, size 11mm x 11mm , suitable for various types of product development....

July 12, 2022 · 6 min

MSP430 custom ezFET Lite

Summary Texas Instruments has a range of 16 bit microcontrollers, the MSP430. To program these require what they call a Flash Emulation Tool (FET). Thankfully all their affordable development kits contain a small stripped down FET, known as the ezFET Lite. TI has open sourced this design and provide both the firmware and the schematics. I was given a tag-connect cable as a giveaway through the 43oh, MSP430 community forum....

March 8, 2022 · 1 min

Dell XPS13 RAM Upgrade (7390)

I’d recently bought a new XPS13 7390 (non 2-in-1) laptop. I had bought the 8GB variant, how hard could it be to upgrade? ...

November 20, 2021 · 10 min

Boson Frame Grabber Part 6

Still alive? 🪦 Yes, it’s true this project did get dropped for awhile, it’s been about 3 years since the last blog post. ...

November 17, 2021 · 6 min