my.startAccelerometer

my.startAccelerometer({
  success() {
    console.log('Accelerometer started');
  }
});

my.startAccelerometer({
  interval: 'game', // 20ms updates
  success() {
    my.onAccelerometerChange((res) => {
      this.updatePlayerPosition(res.x, res.y);
    });
  }
});

Page({
  data: {
    isTracking: false
  },

  startTracking() {
    my.startAccelerometer({
      interval: 'ui',
      success: () => {
        this.setData({ isTracking: true });
        my.onAccelerometerChange(this.recordMotion);
      },
      fail(err) {
        my.showToast({
          content: 'Failed to start accelerometer',
          type: 'fail'
        });
      }
    });
  },

  stopTracking() {
    my.offAccelerometerChange(this.recordMotion);
    this.setData({ isTracking: false });
  },

  recordMotion(res) {
    // Store motion data
    this.motionData.push({
      x: res.x,
      y: res.y,
      z: res.z,
      timestamp: Date.now()
    });
  }
});