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(Hovercraft Group 2 Planning Wiki)
 
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=Microcontrollers=
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[http://www.welsweb.org/articles:0zan9dxe1m http://www.welsweb.org/articles:0zan9dxe1m] [http://www.sorider.com/profile/GordonSherwood http://www.sorider.com/profile/GordonSherwood] [http://wiki.xilinx.com/articles:94xnw9ehvg http://wiki.xilinx.com/articles:94xnw9ehvg] =-=
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==Arduino==
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=Meetings=
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* [http://www.arduino.cc Arduino website] - [http://www.arduino.cc/en/Tutorial/ArduinoBoard Specs].
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* [http://www.sparkfun.com/commerce/product_info.php?products_id=666 Buying info] - $31.95
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* Uses Atmel ATmega8 chip ([http://www.atmel.com/dyn/resources/prod_documents/doc2486.pdf Specs])
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* [http://todbot.com/blog/2006/07/11/arduino-breadboard-shield/ Making a breadboard shielf] - $10
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Pros:
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None planned at the moment.
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* USB connection
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* Nice IDE
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* Good documentation/reference with examples
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=[[Levitation and Structure]]=
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Connecting sensors:
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=[[Power and Propulsion]]=
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* Ultrasound: http://www.arduino.cc/en/Tutorial/UltrasoundSensor
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* Accelerometer: http://www.arduino.cc/en/Tutorial/AccelerometerMemsic2125
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=[[Sensors and Control]]=
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Powering board:
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=Members=
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* Takes 9-12V DC input - use a 9V battery
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* David Aird - daird@umd.edu
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* Ashley Fowler - fowler@umd.edu
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* Sarah Haq - sarahhaq@umd.edu
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Powering fans:
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* William Hong - whong@umd.edu
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* Need an H-bridge and 9V battery per fan
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* Shreyus Kulkarni - skulkar2@umd.edu
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* Jared Lee - jlee20@umd.edu
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From [http://en.wikipedia.org/wiki/H-bridge Wikipedia "H-bridge" entry]: "An H-bridge is an electronic circuit which enables DC electric motors to be run forwards or backwards. These circuits are often used in robotics. H-bridges are available as integrated circuits, or can be built from separate components."
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* Bradley Spies - brspies@umd.edu
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* Justin Taylor - jtaylo10@umd.edu
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Basically, they allow us to use an external power source (another 9V battery) to supply the power to the fan.
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* Connor Vanlent - cvanlent@umd.edu
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* Matthew Wienke - mwienke@umd.edu
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* Seth Yastrov - syastrov@umd.edu
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Logging sensor data:
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* Memory - we need an external EEPROM
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How many sensor reads per second to record? 10 should be enough
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Maximum logging time on the course as per project requirements is 10 minutes.
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600 seconds * 10 reads/second = 6000 values
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Let's say a value ranges from 0-1024, e.g. 10 bits.
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6000*10 = 60000 bits total.
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60000/8 = 7500 bytes.
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7500 bytes * 3 sensors = 22500 bytes = 22.5 kbytes
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[http://www.arduino.cc/en/Tutorial/SPIEEPROM Interfacing an EEPROM] - this one stores 64 Kb of memory.
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We're also going to need to write code that reads from the EEPROM and uploads the data logs through the USB to the PC.
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=HoverSim=
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[[HoverSim]] is a simulation application designed as a testbed for hovercraft control techniques.
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=External Links=
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* "Design and Implementation of an Open
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Loop Hovercraft Controller: Final Report" - http://web.mit.edu/danburns/www/resources/hovercraft.pdf
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Current revision as of 07:03, 13 August 2012

http://www.welsweb.org/articles:0zan9dxe1m http://www.sorider.com/profile/GordonSherwood http://wiki.xilinx.com/articles:94xnw9ehvg =-=

Contents

Meetings

None planned at the moment.

Levitation and Structure

Power and Propulsion

Sensors and Control

Members

  • David Aird - daird@umd.edu
  • Ashley Fowler - fowler@umd.edu
  • Sarah Haq - sarahhaq@umd.edu
  • William Hong - whong@umd.edu
  • Shreyus Kulkarni - skulkar2@umd.edu
  • Jared Lee - jlee20@umd.edu
  • Bradley Spies - brspies@umd.edu
  • Justin Taylor - jtaylo10@umd.edu
  • Connor Vanlent - cvanlent@umd.edu
  • Matthew Wienke - mwienke@umd.edu
  • Seth Yastrov - syastrov@umd.edu
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