Abstract : Robots play an important role in making our lives easier and better. This paper presents the hand gesture recognition system using leap motion controller to control the robotic arm. Iages of hand gestures are taken by camera which is in-built provided by motion sensor. Based on that pixel values, the corresponding gesture is identified and specific command is given to the Robotic system, which helps to increase human robot interaction.
Index terms: Robotic arm, Hand gesture reognition, leap motion controller, servo motors
I. INTRODUCTION
Now a days, robots became a helping hand for human being as robot can perform any task which is very difficult to complete for human being in very less time such as medical surgeries, in industries for mass production as well as to pick …show more content…
1 Block Diagram of hand gesture controlled robotic arm
B) Processor or Computer:
The leap motion controller is connected two the processor which shows the recognition of the gestures. Which is then connected to the arduino.
C) Arduino:
Arduino programs may be written in any programming language with a compiler that produces binary machine code. Atmel provides a development environment for their microcontrollers, AVR Studio and the newer Atmel Studio. Here python is used as a programming language.
D) Mechanical Arm: Fig. 2 shows a mechanical arm which consist of four servo motors (One standard and three micro servo motors). When our hand gesture is captured by leap motion controller then accordingly to gesture position this mechanical arm is move with the help of four servo motors. The servo motors which are used to moving the arm are as follows:
i) Azimuth motor:- Rotate in 180º connected to the pin number 2 of arduino. ii) Altitude motor:- Rotate in 90º connected to the pin number 3 of arduino. iii) Wrist motor:- Rotate in 90º connected to pin number 4 of arduino. iv) Claw motor:- Rotate in 0-85º connected to pin number 5 of arduin

Fig.2 Mechanical