## Overview

A warm-white LED desk nameplate that spells **TAMARA** in a 3x5 bitmap pixel font. Designed as an Adom molecule (92 x 38 mm, 4-pin machine contact).

## How it works

- **54 warm-white LEDs** (0603) arranged in 6 letters: T-A-M-A-R-A
- Each LED has its own **390 ohm current-limiting resistor** (0402)
- All LED+resistor pairs wired in **parallel** from VBUS to GND
- **USB-C connector** on the south edge with 5.1k ohm CC pull-downs
- **10uF bulk cap** for inrush smoothing
- Total draw: ~275mA at 5V (1.4W) -- any phone charger handles it

## How to use it

1. Grab any USB-C cable (iPhone charger works)
2. Plug one end into the board's south edge
3. Plug the other end into a 5V USB-C power source
4. TAMARA lights up warm white

## Bill of Materials

| Component | Value | Package | Qty |
|-----------|-------|---------|-----|
| LED | warm-white | 0603 | 54 |
| R | 390 ohm 1% | 0402 | 54 |
| R_CC1, R_CC2 | 5.1k ohm | 0402 | 2 |
| C_BULK | 10uF X5R | 0805 | 1 |
| J1 | TYPE-C-31-M-12 | USB-C | 1 |

## Design details

- Board: 92 x 38 mm, 2-layer, 1.6mm FR4
- Pixel pitch: 3mm LED-to-LED
- Letter gap: 3mm between letters
- Warm-white Vf = 3.0V, so 390 ohm at 5V gives ~5mA per LED
- Back side has full documentation silkscreen (how to power, BOM, maintenance)

## Built with

Authored in tscircuit (TSX), previewed with adom-tsci, exported to KiCad.