1. Smart Phone Based Robotic Arm
Control Using Raspberry Pi,
Android and Wi-Fi
Chikku Jacob Joseph
S5 MCALE
Roll. No :: 07
Reg No :: 502007
Amal Jyothi College Of Engineering
Under the Guideness of
Ass.Prof Lisha Varghese
Department Of Computer Application
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2. contents
 Introduction
 Raspberry pi
 Robotic Arm
 Android Application
 System Architecture
 Conclusion
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3. Introduction
 Robots are increasingly being integrated into working task to replace humans
especially to work on repeated actions.
 internet is just at the tip of your finger. This is an advantage where we can to
introduce robot to household works.
 Mostly the internet controlled robots will be wired these wired robots have
some space limitation. So to avoid the limitation, the robotic control is made
wireless that is, it is controlled by Wi-Fi.
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4. RASPBERRY PI
 The Raspberry Pi is the work of the Raspberry Pi Foundation, a
charitable organisation.
 UK registered charity (No. 1129409), May 2009
 It's supported by the University of Cambridge Computer Laboratory and
tech firm Broadcom
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5.  The Raspberry Pi is a fully featured micro-computer squashed onto a circuit
board
 measuring approximately 9cm x 5.5cm.
 The Raspberry Pi is a credit-card sized computer that plugs into your TV
and a keyboard, which can be used for many of the things that your
average desktop does
 Features are inexpensive ,simple, Open & easy to maintain
 The Raspberry Pi Foundation started off with a 256MB RAM, labelled as
Model A, and later made a Model B with 512MB RAM.
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6. 6

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8. GPIO[General Purpose Input Output]
 These pins are a physical interface between the Pi and the outside world.
 Seventeen of the 26 pins are GPIO pins; the others are power or ground
pins.
 You can program the pins to interact in amazing ways with the real world.
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9. ROBOTIC ARM
 The robotic arm has four rotational joints, the base, shoulder, elbow and wrist
 The base rotates the arm around the vertical z-axis, while the other three
rotate it around the x-axis
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10. Fig:Raspberry Pi inside the robot Figure :The robot with the Pi.
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11. ANDROID APPLICATION
 Android application is an application build in the android platform
 A signal is generated on clicking a specific buttons on the android application which
allows the raspberry pi to make the arm move according to the predefined program.
 Here Android application being the command centre of the robotic arm as it commands
the arm to move or grab.
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12. SYSTEM ARCHITECTURE
 The smart phone is developed by the latest technology based on the Android platform.
 The raspberry pi is connected to the android using the Wi-Fi network.
 An android application which gives the signal as the instruction to the raspberry pi and the
robotic arm is controlled.
 The four movements can be controlled according to the different instruction given.
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13.  The interfacing of the motors of the robotic arm with the Raspberry Pi is
shown in the figure
 The robotic arm has 5 motors, so 3 motor driver ICs are required for the
control of all the joints of the robotic arm.
 A triple L293 driver board which consists of three L293D motor driver
ICs is designed for the control of all the motors and is interfaced with
the GPIO pins of Raspberry Pi.
 A total of 15 GPIO pins of Raspberry Pi are used for the control of all
the joints of robotic arm
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15. CONCLUSION
 The Raspberry Pi can be used for the control of a Robotic Arm with Smartphone from a
remote area.
 The present scenario internet controlled robot has several disadvantages such as wired
restrictions and server problems.
 In this Smartphone technique the delay and server problems are reduced as the Wi-Fi is
used which is the fastest usage of internet
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16. REFRENCES
 http://www.raspberrypi-spy.co.uk/2012/06/simple-guide-to-the-rpi-gpio-header-and-pins/
 https://www.raspberrypi.org/documentation/hardware/raspberrypi/gpio/README.md
 Zane Anwar Ali1, M.Tanveer2, Habib Shaukat2, SaadAnwar3, (2014.)“Android
Operated Robotic Arm”, Universal Journal of Control and Automation 2(1),13
 Lung Ngai, Wyatt S. Newman, Vicenza Liberators, (2014.)“Android Operated Robotic
Arm” Universal Journal of Control and Automation 2(1): 1-3,
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17. THANK YOU
Questions??
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