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wiibalanceplot's Introduction

wiibalanceplot

What is this

Use wii balance board to track barycentre and draw on display. Combine below two

Requirements

  • python-pygame
  • python-bluez
  • bluez-utils
  • Bluetooth

Usage

./balanceplot.py

Filiter for AD convert

  • Sample code

       public void onSensorChanged(SensorEvent event)
       {
            // alpha is calculated as t / (t + dT)
            // with t, the low-pass filter's time-constant
            // and dT, the event delivery rate
    
            final float alpha = 0.8;
    
            gravity[0] = alpha * gravity[0] + (1 - alpha) * event.values[0];
            gravity[1] = alpha * gravity[1] + (1 - alpha) * event.values[1];
            gravity[2] = alpha * gravity[2] + (1 - alpha) * event.values[2];
    
            linear_acceleration[0] = event.values[0] - gravity[0];
            linear_acceleration[1] = event.values[1] - gravity[1];
            linear_acceleration[2] = event.values[2] - gravity[2];
       }
    
  • Methodology

Sample Rate

According to log, 100 saples in 1000 ms

wiibalanceplot's People

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