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Final Project Ping))) Characterization

Final Project Ping))) Characterization. Farhaz Karmali Harshit Goyal Andrew Tomlinson. Project Description. Interface a Parallax Ping))) Ultrasonic Range Finder with the A rduino Uno microcontroller package Characterize the Ping))) sensor for general use through experimentation

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Final Project Ping))) Characterization

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  1. Final ProjectPing))) Characterization Farhaz Karmali Harshit Goyal Andrew Tomlinson

  2. Project Description • Interface a Parallax Ping))) Ultrasonic Range Finder with the Arduino Uno microcontroller package • Characterize the Ping))) sensor for general use through experimentation • Create a simple GUI to display the distance found by the Ping)))

  3. The Arduino Uno • The Arduino Uno R2 • Board for the ATmega328 microcontroller • 16 MHz • Power from PC • USB B connector • Programming with Arduino IDE

  4. The Ping))) Range Finder • Male 3-pin header • GND • 5 VDC • SIG • 40 KHz Tx

  5. Limitations • a) Object is more than 3 meters away • b) Reflective surface at low incidence ang. • c) Object is too small to be detected

  6. Limitations cont. • Objects that absorb sound or have a soft or irregular surface may not reflect enough sound to be detected accurately. • Air temperature affects the speed of sound according to: • Cair = 331.5+ (0.6× TC ) m/s • Percent error over 0 to 70 ° C is significant: 11 to 12 percent

  7. Limitations cont.

  8. A bit of code…

  9. Code continued

  10. C#

  11. C#

  12. The Wall

  13. The Ball

  14. The Tube

  15. The Block

  16. Special Notes • Acoustics of material • Temperature • Object Shape

  17. References • Ping Datasheets: • http://www.parallax.com/dl/docs/prod/acc/28015-PING-v1.3.pdf • http://www.parallax.com/Portals/0/Downloads/docs/prod/acc/28015-PING-v1.5.pdf • Andy Pope excel add-in: • http://www.andypope.info/charts/polarplot.htm

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