Introduction

BBTrack is a hardware-hacking project that repurposes the optical trackpad from a BlackBerry 8520 mobile phone and transforms it into a compact USB HID pointing device for modern computers. The goal of the project is to retain the nostalgic charm of classic BlackBerry hardware while giving it a new and highly practical role — this time as a tiny, hackable pointing interface.

At the core of BBTrack is the RP2040 microcontroller, chosen for its flexibility, performance, and strong ecosystem support. On the firmware side, the device is powered by QMK, enabling robust USB HID functionality and making customization straightforward for makers and keyboard enthusiasts.