intelacademic diy 05 maestro pololu usb card

8/11/2019 IntelAcademic DIY 05 Maestro Pololu USB Card

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Intel Do-It-Yourself Challenge

Maestro Pololu USB card

Cdric Andreolliwww.Intel-Software-Academic-Program.com

aul.guermonre!"intel.comIntel Software#$%&-$#-$'
http://www.intel-software-academic-program.com/http://www.intel-software-academic-program.com/


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Agenda


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Agenda

Introduction

Configuring the Android ro(ect

USB Communications

Manage the Pololu card

Create an A

Conclusion


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Introduction


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Configuring the AndroidPro(ect


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Configuring the Android Pro(ect

5e will use Android Intentsto launch thealication.

You won,t 6e a6le to start the a if 0ou don,t

lug the Pololu to the hone.)his ro(ect uses the Micro Maestro 7 channelscard 6ut 0ou will 6e a6le to adat the code toanother card.


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Create a new Android Application

Create a 6asic Android alication. Choose aBlank Activity.

In this course8 our alication is namedPololuUSBController.

Our plan is to create an application that will be launched byAndroid when the Pololu is plugged.


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Open the Manifest

Automatic launch can 6e achie*e with Intents

9irst8 change the intent-filter to

You can directl0 add a meta-data mar:u to lin:a USB de*ice filter


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Create the file device_filter

Create a folderxmlin resand add a 3ml file(device_filter.xml)


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Retrieve your card information

Plug the Maestro card to 0our comuter andoen a terminal

)0e the following command

You can outut the command in a file and loo:for ;Maestroen PololuUSBController....=

requestis the oeration code

indexreresents the channel

buffercan 6e set to null8 length to $


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USB Communications

Operation codes

ere are the different oeration codes a*aila6le+

=@U@S)?S@)?S@=>?A=IABE@ $3'28

=@U@S)?S@)?)A=F@) $3'G

S@)?)A=F@) allows to change the osition ofthe ser*o

S@)?S@=>?A=IABE@ allows to modif0 ser*oarameters 1such as seed and acceleration4


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USB Communications

Encapsulate !" communications

Eet,s create a new Ha*a interface

And a new class that imlements this interface


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USB Communications


Imlements the interface with thecontrol)ransfert method


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USB Communications


Set osition uses the command $3'G8 numcorresonds to the ser*o num6er

)he *alue of positionis in uarter of

microseconds8 so we multil0 the position60 2


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USB Communications


Seed can 6e set 60 using the command $3'21S@)?S@=>?A=IABE@4

5e (ust need to ro*ide the speed*alue


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USB Communications


Acceleration can 6e set 60 using the command$3'2 1S@)?S@=>?A=IABE@4

5e must use the 2tharameter to set the ser*o

num6er and to define the t0e of *aria6le)o set the acceleration8 the most significant 60teof the channel must 6e $3'


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Create a new class

Create a class to manage the ololu card


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#ill the constructor

)he constructor is ri*ate and is called from astatic method 1createCard4


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$rovide controls on the servos

)he card must 6e a6le to send information to theser*o motors


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$rovide a builder

)he card is 6uilt *ia a static method


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Create an a


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Create an a

Create your xml view


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Create an a

Add behavior

In 0our acti*it08 in the onCreatemethod

You write similar code for accelerationand seed


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Create an a

Add behavior


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Create an a

Other improvements %

You can use the sensors to automaticall0acti*ate the ser*o motors

You can use the FPS data to modif0 ser*omotor,s 6eha*iors

Intel organi!e a contest on ara-gliderautonomous drones using those technologies


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Conclusion


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Conclusion

Control your card with your Intel phone

An Intel hone is a comuter8 0ou can rogram itto control the Maestro card

)a:e ad*antage of the owerful CPU8 sensors8FPS8 etc that the Intel hone can ro*ide

If you have ideas that use Intel hardware and$ololu cards& feel free to let us 'now


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intelacademic diy 05 maestro pololu usb card

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