# Plan — Prof Brothers LED Nameplate

## Original prompt

> make an led molecule for Prof Brothers from Georgia Tech. we want his name
> in lights spelled out in LEDs on a pcb in adom's molecule format. use
> adom-tsci. put a usbc connector on it so Prof Brothers can just plug it
> into his iphone charger to light up his nameplate. he'll put this on his
> desk to show the students when they visit his office.

## Refinements during the build

- Used the same architecture as Larry's nameplate (built earlier in the same session)
- Extended the pixel font with letters P, O, F, B, T, H, E, S (Larry's only needed L, A, R, Y)
- Board sized to 136x24mm to fit the 13-character "PROF BROTHERS" text
- Added "GEORGIA TECH" silkscreen below the LED array

## Hardware decisions

- **117 white 0603 LEDs** — 3x5 pixel font, 3mm grid pitch, 3mm letter gap, 5mm word gap
- **117 × 220 ohm 0402 resistors** — one per LED, ~9mA each at 5V
- **USB-C (TYPE-C-31-M-12)** on the east edge — UsbCReceptacle wrapper with rotation-invariant placement
- **5.1k CC pulldowns** — required for USB-C power delivery
- **100nF bypass cap** on VBUS
- **4 MachineContactMedium** at corners for workcell scaffold mounting + optional scaffold power

## Out of scope (deliberate)

- No microcontroller — all LEDs always on
- No brightness control or animation
- No ESD protection on USB-C data lines (power-only)

## Build → publish workflow

```bash
cd ~/project/adom-tsci/examples/ProfBrothers-Nameplate
bun install
bunx tsci build lib/index.tsx --glbs --svgs --3d-png --pcb-png
adom-tsci start .
adom-tsci export-wiki --slug profbrothers-led-nameplate --page-type molecules
```