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Revolutionary Air Mouse: A Multi-Pointing Wireless Device

Develop a new input device based on free hand movement, utilizing accelerometers and Bluetooth for wireless control. Enable customizable commands and gestures for various applications, enhancing user interaction. Discover the advantages and drawbacks of accelerometers and Bluetooth wireless serial cable replacements. Implementing special gestures and movements, this device gives users the power to control programs, music, videos, and more with ease.

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Revolutionary Air Mouse: A Multi-Pointing Wireless Device

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  1. GRADUATION PROJECTAir Mouse Presented by: Majdoleen Abu-taqa Tawaddod Nabeel Sous

  2. The Idea: • To build a new input device based on the free hand movement. • Multi-pointing • Wireless • Customizable

  3. Implementation *Using Accelerometers And Bluetooth Module. • MMA7260Q • SparkFun

  4. What is an Accelerometer? An accelerometer measures the acceleration it experiences relative to freefall. Single- and multi-axis models are available to detect magnitude and direction of the acceleration as a vector quantity, and can be used to sense orientation, vibration and shock.

  5. *Advantages - Can be more accurate and precise. - Can be used with a Projector. *Drawbacks - Accelerometers can be expensive - Needs 10 Accelerometers to implement the 2-finger mutli-pointing device. (1 for each finger!)

  6. Bluetooth Module The BlueSMiRF is the latest Bluetooth wireless serial cable replacement from SparkFun Electronics! These modems work as a serial (RX/TX) pipe. Any serial stream from 9600 to 115200bps can be passed seamlessly from your computer to your target.

  7. Software Used • Built on Ubuntu 8.10 and 9.04  • 8.10 crashed so we moved to 9.04 • Using Bluez implementation of Bluetooth for Linux • Used Python Programming Language • Open source • Write-less-do-more • Libraries  • pybluez - python API for accessing bluez • pymouse - python library for accessing mouse preferences  • pygtk - Graphical components Libraries

  8. How it Works? * X acceleration is used to compute the displacement of the x-axis mouse position • Y -> y-axis • Z -> Based on criteria -> press and release * Special movements and gestures to do more stuff • Launching programs, music, videos...etc • Based on some criteria * Giving the user the choice to enable the special gestures or not • Not to interfere with the mouse movement or other functions • Needed because we use only one accelerometer

  9. Stable Position

  10. Right Position Left Position

  11. Down Position Up Position

  12. Results and Conclusion • A single accelerometer doesn't provide an accurate indication of the real movement of the user's hands • Multiple accelerometers • Raise the accuracy • Provide more combinations for more gestures • Multi-pointing • Too expensive! • Bluetooth embedded Accelerometers • No need for a bluetooth or a PIC modules! • Simplify the design and the hardware! • Expensive!

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