Ringinator

The repository for my 3D-printed ring-shaped motion-control presentation control and pointer device written in C++ and TinyML and implemented with a TinyS3 microcontroller

Goals

The goal is to develop a prototype device shaped like a ring that can be used to control presentations and as a laser pointer using only motion controls.

1. Maximum compactness Everything needs to be small, the software should be minimalistic (ideally as much processing on the TinyS3 as possible)
2. Wirelessness

Planned commands:

Shaking your hand while pointing at the screen	Shaking your hand while pointing down	Pushing your finger towards or away from the screen	swiping your hand left and right	circling with your finger (counter-)clockwise	WIP
Activating the laser/computermouse mode	Disabling the laser/computermouse mode	left and right clicking	changing the volume	changing the slides forwards and backwards	pointing your figer up for 2 seconds

Project roadmap

• April: Hardware & Networking
  • Creating a Typst template
  • Creating the model for the ring
  • Wiring the components together
  • Soldering the components together
  • Creating the hull containing the components
  • Establishing a connection between the TinyS3 and the PC
• May: Software:
  • IMU-Visualization
  • Sensor-fusion
  • Computer-side API:
    • Mapping the individual commands to keys
    • Gyroscope calibration routine
    • Mouse coordinate mapper (Euler Angles)
    • Calibrate the mouse
  • Setting up TinyML
• June: Training and evaluating the models

Protoype

Requirements

• Python 3.9 or higher
• Pynput 1.7.6
• Pyalsaaudio 0.11 (on Linux) or PyCaw 20240210 (on Windows)