LLavigne Labs

Lab Notes

What I tinker with when nobody's paying me.

The side projects and experiments behind the work. Half of what I know about making things well, I learned messing around on the bench with no deadline and no client.

Making a PCB that's also art

June 10, 2026

Making a PCB that's also art

Spent the weekend pushing soldermask and copper around purely for looks. There's something satisfying about a board that's fully functional and would also look good on a wall. Half the tricks I use for client work came out of experiments exactly like this.

Bringing up a parallel 8080 LCD from scratch

May 22, 2026

Bringing up a parallel 8080 LCD from scratch

No library, no example code that matched my part — just the datasheet and a logic analyzer. Bus timing on these old parallel interfaces is fiddly, but there's a real joy in the moment the first pixels finally light up the way you intended.

Why I still build conference badges

April 30, 2026

Why I still build conference badges

Badges are the perfect excuse to try a manufacturing idea at small scale with zero stakes. New assembly process, a weird connector, a tight panelization — if it works on a badge run, I'll trust it on a client's product.

A keyboard is a great systems project

April 8, 2026

A keyboard is a great systems project

Mechanical design, a switch matrix, firmware, an enclosure that has to feel right in the hand — a custom keyboard touches every discipline I use day to day. Great way to stay sharp between bigger projects.