DIY VR-Motion Controller

Building a realtime wireless BLE input device for the Embedded Operating Systems Seminar 2021 @ HPI Potsdam.

Contributors

• @EightSQ
• @ShirleyNekoDev

Targeted features

• 6 DOF (3D rotation and acceleration) tracking
• positional tracking relative to the user's shoulders
• button, trigger and thumbstick
• data transmission via Bluetooth Low-Energy
• battery-powered + USB-C charging
• (Windows only) XBox360 controller emulation

Real-Time Additional Requirements

• >100Hz polling rate (10ms time between each sent packet)
• <15ms average latency