2 min
Put an LED on it: observability for breadboard computers
The cheapest debugging tool in electronics is a resistor and a light. How blinkenlights carried a 14-breadboard CPU build, and what they replace.
Blog
Build logs and field notes. Mostly things I wish I'd found on someone else's site before I started.
1 min
The case for the single-purpose appliance
A receipt printer that only prints notes is more useful than an app that does everything. Notes on building the LAN printer and why constraints made it good.
2 min
Nine prints to a good part
Iteration logs from the cone light modifier: what each failed print taught me about tolerances, surfaces, and knowing when to stop.