This repo contains all files required to make your own PCB boards!
You can directly order PCB from PCBWay:
- Shield version: click here
- Flat version: click here
Both version offers the same features and requires the same component parts. The flat version is made for places where there is a few vertical height available, but some horizontal space.
The card is designed as a shield to be put on top/bottom of your main card (the Seeed nRF52480). Here is a breakdown of all required components:
- 1x Seeed nRF52480 (also known as XIAO-BLE);
- 1x TA6586 (motor driver);
- 1x Pololu 5V 500mA step-down voltage regulator;
- 1x Supercapacitor NEXC224Z5.5V10.5X8.5TRF;
- 3x Vishay Schottky Diode B120-E3/61T
- And a LED for the train light.
The PCB is already documented so you shouldn't have a lot of trouble to find where to connect the components.
The total price is ~ 23€ per train, PCB included (delivery costs excluded).
This project is licensed under GNU Affero General Public License v3.0.