28015 Parallax Inc, 28015 Datasheet - Page 11

• Manufacturer Part Number: 28015
• Description: Optical Sensor Development Tools PING))) DISTANCE SENSOR ULTRASONIC
• Manufacturer: Parallax Inc
• Series: PING)))™r

Specifications of 28015

• Operating Voltage: 5 V
• Operating Current: 30 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Description/function: Proximity Sensor
• Sensing Distance: 0.787" ~ 118.110" (20mm ~ 3m) ADJ
• Sensor Type: UltraSonic
• Sensing Object: Metallic and Non-Metallic
• Response Frequency: 40kHz
• Material - Body: -
• Shielding: Unshielded
• Voltage - Supply: 5V
• Output Type: Pulse Output
• Terminal Type: 3-Wire
• Package / Case: 3-SIP
• For Use With/related Products: Basic Stamp
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

}
This simple demo illustrates the use of the PING))) ultrasonic range finder class with
the Javelin Stamp:
import stamp.core.*;
import stamp.peripheral.sensor.Ping;
public class testPing {
Copyright © Parallax Inc.
/**
public int getIn() {
}
/**
public int getIn10() {
}
/*
/**
public int getCm() {
}
/**
public int getMm() {
}
public static final char HOME = 0x01;
public static void main() {
* Values to derive conversion factors are selected to prevent roll-over
* past the 15-bit positive values of Javelin Stamp integers.
*/
* @return PING))) distance value in inches
*/
* @return PING))) distance value in tenths of inches
*/
* The PING))) returns a pulse width of 29.033 uS per centimeter.
* Javelin pulseIn() round-trip echo time is in 8.68 uS units, this is the
* same as a one-way trip in 4.34 uS units.
* get a time-per-centimeter conversion factor of 6.6896.
*
* Values to derive conversion factors are selected to prevent roll-over
* past the 15-bit positive values of Javelin Stamp integers.
*/
* @return PING))) distance value in centimeters
*/
* @return PING))) distance value in millimeters
*/
return (getRaw() * 3 / 51);
return (getRaw() * 3 / 5);
return (getRaw() * 3 / 20);
return (getRaw() * 3 / 2);
Ping range = new Ping(CPU.pin0);
StringBuffer msg = new StringBuffer();
int distance;
PING))) Ultrasonic Distance Sensor (#28015)
// raw * 0.058824
// raw / 1.6667
// raw / 6.6667
// raw / 0.6667
Dividing 29.033 by 4.34 we
v1.5 2/15/2008 Page 11 of 12
As the