28029 Parallax Inc, 28029 Datasheet - Page 69

• Manufacturer Part Number: 28029
• Description: KIT PARTS SMART SENSORS W/TEXT
• Manufacturer: Parallax Inc

Specifications of 28029

• Accessory Type: Parts Kit
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: BASIC Stamp® or Javelin Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 28029PAR

LCD Distance Display
It doesn't take much in the way of changes to modify PingMeasureCmAndIn.bs2 to make
it display its measurements on the LCD. First, an Initialization section has to be added so
that the program waits for the power supply to stabilize and then turns on and clears the
LCD.
Next, the
DEBUG
The Debug Terminal control characters (
codes that will place the cursor in the LCD.
Example Program: PingLcdCmAndIn.bs2
This program is a modified version of PingMeasureCmAndIn.bs2 from the previous
activity. Instead of displaying its measurements in the Debug Terminal, it displays them
on the Parallax Serial LCD.
' Smart Sensors and Applications - PingLcdCmAndIn.bs2
' Measure Distance with the Ping))) sensor and display on LCD
' {$STAMP BS2}
' {$PBASIC 2.5}
' Conversion constants for room temperature measurements.
CmConstant
InConstant
cmDistance
√
√
√
commands from PingMeasureCmAndIn.bs2.
PAUSE 200
SEROUT 14, 84, [22, 12]
PAUSE 5
DEBUG HOME, DEC3 cmDistance, " cm"
DEBUG CR, DEC3 inDistance, " in"
SEROUT 14, 84, [128, DEC3 cmDistance, " cm"]
SEROUT 14, 84, [148, DEC3 inDistance, " in"]
Connect a battery to your board.
Enter, save and run PingLcdCmAndIn.bs2.
Disconnect the serial cable, and take your board with you to wherever you want
to test the Ping))) sensor's measurements.
DEBUG
VAR
CON
CON
commands need to be changed to
Word
2260
890
HOME
Chapter 2: The Ping))) Ultrasonic Sensor · Page 57
and
CR
SEROUT
) need to be changed to control
commands. Here are the