World Journal of Engineering Research and Technology

Ifeoma B. Asianuba* and Nwizu Chibuzor

ABSTRACT

In this work, a Hand Gestured Controlled System is designed and implemented for video and graphic presentations. This is achieved using Ultrasonic sensors, Arduino nano, and Bluetooth module. The ultrasonic sensor measures the position of the palm at each given time (one second interval), and then converts the received information into different waves of electrical signals. The electrical signal is transmitted to the Arduino Nano, which is encoded to interpret the hand-motion and further transmitted via a Bluetooth module to the computer. When the received signal identifies with an already trained signal, the former is sent to a serial port of the computer. The computer receives and then interprets the signals as a key-bind command. These key-binds are already assigned instructions to the computer and therefore perform certain task when called up. It was established that this system could handle up to twenty different key-bind operations on the computer. However, only 8 operations were demonstrated in this work. These include; playing and pausing a video, scrolling up a page, scrolling down a page, increasing the volume of a media player(VLC), decreasing the volume of a media player (VLC), switch forward between tabs on chrome, switch backwards between tabs on chrome and finally switch between last used Desktop Applications. This design, in today?s world, can be used to effectively improve Human computer interaction and Digital presentations done with computers. This work can also serve as an extensible foundation for advanced Gesture Controllers.

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