Projects - David Green

You may have seen my previous blog post about adding a USB-C port to my favorite calculator, the HP Prime.

Update: 2/4/2026: This project has been featured on Hackaday.com!

Update 1/7/2026: This article has been featured on Hackaday.com!

A few years ago, I bought a tiny flashlight on AliExpress for about $10.

Here’s the story of how I resurrected a Kindle 3 that wouldn’t turn on even after replacing its battery.

When I’m visiting somewhere scenic, I often think to myself, “If only I had some binoculars right now!”

I have a Fujitsu Halcyon Split Unit AC that is about ten years old.

Background: I really enjoy tinkering with older-style CRT televisions and monitors.

Introduction I’ve long been a fan of the movie “2001: A Space Odyssey”, especially the futuristic design of the evil supercomputer HAL 9000.

Update 2/4/2026: This article has been featured on Hackaday.com!

I wanted an easier way to reference my iBook G3 Clamshell’s logic board without taking it apart, so I made these high-resolution scans.

Update 3/1/2026: This article has been featured on Hackaday.com!

I have an Orion XT-6 telescope, which I greatly enjoy using to observe the night sky.

I enjoy tinkering with HiFi equipment and have often considered building my own speakers from scratch.

I built this igloo in the winter of 2021 over the course of several days.

I’ve owned some fantastic-sounding Harman/Kardon SoundSticks II for many years, but they have long suffered from a problem where the volume balance between the left and right speaker channels was inconsistent.

The goal I have an Apple iBook G3 (1999) with a battery that no longer functions.

Introduction Binaural audio recordings have fascinated me for years.

I am in the process of creating a video series detailing the restoration process of my Macintosh SE/30.

Introduction After several years of tinkering with a very uncooperative Macintosh SE/30, I finally came to the conclusion that I needed a fresh machine to work on.