Building robots-using-android-and-arduino

Building Robotsusing Android and ArduinoSudar MuthuResearch Engineer, Yahoo! Labshttp://sudarmuthu.comhttp://github.com/sudarhttp://twitter.com/sudarmuthu

Agenda• Let’s start with a demo• Anatomy of a robot• Android• Arduino• Making them talk – Over Bluetooth – Over WIFI – Over USB wire – Over Audio Jacket – Over GSM• Summary• Questions

Let’s start with the demo Demo http://sudarmuthu.com/arduino/asimi

Anatomy of a RobotSensors Motors Processor

Android can act as a ..Sensor – Accelerometer – Camera – Magnetic Compass – GPS – etc.Processor – Native Java App – Android Scripting Environment (ASE)

Missing part is..

Missing part is.. Motor(and that’s where Arduino can help)

Arduino• Visual Basic for hardware• Includes both Hardware and software Photo credit Arduino team

We have Android (Sensors &processor) and Arduino (Motor)

We have Android (Sensors &processor) and Arduino (Motor) Let’s make them talk

Making them talk• Over Bluetooth• Over WIFI• Over USB – ADK – Normal Way• Over Audio Jacket• Over GSM• Over C2DM• Others (NFC, Intermediate computer etc)

Over BluetoothYou need• Bluetooth Shield• Library – Amarino - http://amarino-toolkit.netAdvantages• Wired connection is not needed• Can work from Android 1.5• Two way communicationDisadvantages• Power consumption is high• Slightly slower when compared with others• Range is limited

Over WIFIYou need• Wifi Shield• Wifi ConnectionAdvantages• Wired connection is not needed• Two way communication• Can work from Android 1.5Disadvantages• Both should be present in the same network• Power consumption is slightly high

Over USB Cable - ADKYou need• ADK Board or USB Host Shield• ADK SDKAdvantages• Native support from Android• Two way communicationDisadvantages• Will work only in 2.3.4 +• Wired Connection is needed

Over USB Cable – Socket &LogcatYou need• USB Host Shield• Library – Microbridge - http://code.google.com/p/microbridge/Advantages• Works in older versions as well• Two way communication (Socket &Logcat)Disadvantages• Wired connection is needed

Over Audio JacketYou need• Male Audio Pin• Pre-encoded Wave/MP3 filesAdvantages• Very compact• Less power consumptionDisadvantages• Only one way communication is possible• Slightly difficult to get it to work

Over GSMYou need• GSM ArduinoShiled• Two sim cardsAdvantages• Range is unlimited• Very simple to setup• Two way communication is possibleDisadvantages• Operating cost (SMS)• Potential to abuse

Over C2DMYou need• Ethernet or WifiArduino Shield• C2DM accountAdvantages• Good for notifications• Very easy to setup in Android sideDisadvantages• Only one way communication is possible• Works only from v2.2+• Need Wifi connectivity

Other OptionsSomenotablealternateoptions• NFC (Near Field Communication)• Using Computer as a intermediate transmitter• USB Host support (in case of tablet or rooted phones)

Don’t throw awayyour old phones ;)

Links• Arduino – http://arduino.cc• Microbridge – http://code.google.com/p/microbridge/• Amarino –http://amarino-toolkit.net• USB Host Shield – http://circuitsathome.com/products-page/arduino- shields/usb-host-shield-2-0-for-arduino/• Using Arduino as ADK – http://sudarmuthu.com/blog/using-standard-arduino- board-as-googles-adk-kit• My articles about Arudino – http://sudarmuthu.com/blog/category/ardino• Demo source code – http://github.com/sudar/Asimi• Demo Project page – http://sudarmuthu.com/arduino/asimi• Cellbots– http://cellbots.com

QuestionsThank You Sudar Muthu http://sudarmuthu.com http://gitbub.com/sudarhttp://twitter.com/sudarmuthu

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Building robots-using-android-and-arduino

by Sudar Muthu

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