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… because I forget simple little things too soon …

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TinyGo in Zed

I’ve moved my embedded Go work to Zed . It is super fast, pleasant and increasingly secure by default. For me it beats the shit out of messy VS Code: fewer layers, less interface debris and no feeling that my text editor is a browser wearing a tool belt. Zed is a native Rust application with a purpose-built, GPU-accelerated UI designed to render at 120 frames per second . Unfamiliar worktrees also…

A Control Panel for Electronics Prototypes

Every prototype needing human input starts with the same chore: wire loose buttons, LEDs and a potentiometer before testing the interesting part. So I made that recurring mess permanent. This scrap-built, 3D-printed panel has four momentary buttons, two toggles, one potentiometer and three LEDs. Ten controls and indicators connect to any microcontroller through ordinary jumper wires. It is a…

Never bet against Elon

You should never bet against Elon. Peter Thiel, Economic Club of New York, 2018 Thiel then admitted that he had considered rocket reusability inconceivable . SpaceX did it anyway. The distinction is useful: skepticism costs nothing; a specific public prediction creates a ledger. What follows is the strict ledger: public dismissals from named industry leaders or people with exceptional access to…

A Common Thread

Around the middle of 2019, I started making the equipment around me speak one electrical language. I built a USB Power Delivery sink controller, then converted more and more of my equipment to USB-C . The point was not the connector itself. It was being able to reach for one cable and one power supply with some confidence that things would work together. Quite by accident, I have done the same…

Ryobi 18V Cigarette Lighter Adapter

I wanted an easy way to get useful power out of my Ryobi batteries without building another power supply. So I put a car cigarette lighter socket in a simple 3D-printed attachment and wired it straight to the battery terminals. That’s the entire circuit. The socket is connected directly to the battery terminals. There is no voltage conversion hiding inside the print. Read the rest on the site ...

DJI Neo 2 Smallest Crush-proof Case

I wanted a DJI Neo 2 case that could disappear into a backpack without the drone getting crushed by everything piled on top of it. The result is a 3D-printed case measuring 163 × 185 × 47 mm, including room for the drone and the small spares I actually need. It may be the smallest crush-proof case for the Neo 2 out there. The flexible radio-module antennas remain outside, avoiding the empty case…

AI Pro Tips

I’ve posted enough scattered AI tips on Slack that it’s time to put them in one place. These are operating principles, not commandments. Nothing applies everywhere; don’t blindly follow any of this. Read the rest on the site ...

PowerScope

ChargerLAB only provides a Windows app for the Power-Z KM003C. I wasn’t going to install a whole separate operating system just to use one USB power meter, so I built PowerScope . It graphs live voltage, signed current, power, temperature and USB rails at up to 100 samples per second; records sessions; exports CSV and JSON; and captures and decodes USB Power Delivery traffic and cable E-Markers.…

Muting DJI Neo 2 Speaker

The DJI‘s Neo 2‘s onboard speaker is one obnoxiously loud piece. So I opened it up, unplugged the speaker cable from the main board, and snipped off the loose wire and now it’s blissfully silent (except the little startup music that plays out of the motors!). Speaker connector location. Gotcha: preserve the blue thermal putty. It is a soft gap filler , not ordinary CPU paste: it bridges uneven…

Australia’s Best Health Insurers

TL;DR List of best health insurers in Australia based on publicly available statistics. I recently decided to up my health insurance from the bare minimum required by the government here in Australia. It proved quite difficult to find which insurer is the best for my state. Now the “best” insurer is a loaded term. It depends on your needs, your age and so on (and for that, you should see other…

Gracefully Degrading Home Automation

Over the past two years, I have gradually increased my use of home automation in our small city apartment. I started with an IKEA TRÅDFRI light and a button, and today have over 40 devices doing useful things, saving electricity and making our living more pleasant. I won’t lie: I have done a lot of this just for fun and learnt quite a bit in the process. But if it doesn’t eventually result in…