Shop

This is a hobby. I am selling a few boards to cover costs, and fund future work. If you are interested, please fill out the form below and I will reach out.

Collected emails will only be used to notify you when boards are available.

Small batches

Assembled by JLCPCB, tested by me before shipping.

Shipping

Shipping is included in the price for the continental US.

Warranty

All boards are tested and come with a 1 year warranty.

Open-source, forever

This project will remain open-source, full details on GitHub.

Free

MBTA map PDFs

Free CC BY-SA 4.0

I love maps, and it has been a lot of fun learning how to make my own. Here are a few examples of maps (not all perfectly polished) that you can check out!

I made these maps using QGIS, and have posted the source files here on Google Drive.

You can also customize these maps using Inkscape or other vector graphics software.

Red Line 8 × 10″ PDF

Download Red Line (PDF) →

Maps by Thomas Underwood · Map data © MassGIS, Commonwealth of Massachusetts · Licensed CC BY-SA 4.0

Close-up of a CharlieBoard PCB with WS2812B-2020 LEDs soldered.

Red line Orange line Blue line

PCBA Kit

$65 shipped (US)

A pre-assembled PCB ready for your own build. Want to order one yourself instead? See the JLCPCB ordering guide.

What’s in the box:

1× PCB with WS2812B-2020 LEDs pre-soldered
1× JST-SM 3-pin connector pigtail
Assembly tips card

You supply:

Raspberry Pi Zero 2W
5 V · 4 A power supply
microSD card (16 GB+)
Wiring and soldering tools
Picture frame

Sign up for a kit →

Red line Orange line

Fully assembled CharlieBoard

$250 shipped (US)

What’s in the box:

1× Assembled CharlieBoard and Frame
1× Raspberry Pi Zero 2W and 3D printed case
1× 5 V · 4 A USB power supply
1× microSD card

Sign up for an assembled board →