1. Final Project Ping))) 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

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

7. 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 = (0.6× TC ) m/s
Percent error over 0 to 70 ° C is significant: 11 to 12 percent

8. Limitations cont.

9. A bit of code…

10. Code continued

11. C#

12. C#

13. The Wall

14. The Ball

15. The Tube

16. The Block

17. Special Notes
Acoustics of material
Temperature
Object Shape

18. References Ping Datasheets: Andy Pope excel add-in:
Andy Pope excel add-in: