Example Code - Parallax 28044 Manual

Example Code

®
BASIC Stamp 2 Microcontroller
The following code example demonstrates features of the Laser Range Finder. This code is available for
download from the Parallax Laser Range Finder Module product page; search "28044" at
www.parallax.com.
This program uses the Debug Terminal, which is built into the BASIC Stamp Editor software. The
software is a free download from www.parallax.com/basicstampsoftware.
' =========================================================================
'
' File....... LRF_Basic.bs2
' Purpose.... Demonstrates features of the Parallax Laser Range Finder Module
' Author..... Joe Grand, Grand Idea Studio, Inc. [www.grandideastudio.com]
' E-mail..... support@parallax.com
' Updated.... 30 JUN 2011 (v1.1)
'
' {$STAMP BS2}
' {$PBASIC 2.5}
'
' =========================================================================
' -----[ Program Description ]---------------------------------------------
'
' This program demonstrates the Parallax Laser Range Finder (LRF) Module.
'
' When the pushbutton switch is pressed, the Laser Range Finder calculates
' the distance between itself and the target object. The result is
' displayed on a Parallax Serial LCD Module (#27977 backlight or #27976
' non-backlight).
'
' When the measurement is out-of-range (outside of the defined minimum or
' maximum distance bounds of the Laser Range Finder), the piezo buzzer
' will sound a warning tone.
'
' -----[ Revision History ]------------------------------------------------
'
' 1.0: Initial release
'
' -----[ I/O Definitions ]-------------------------------------------------
Enable PIN
Piezo PIN
LCD_TX PIN
LRF_TX PIN
LRF_RX PIN
' -----[ Constants ]-------------------------------------------------------
#SELECT $STAMP
#CASE BS2, BS2E, BS2PE
T1200 CON
T2400 CON
T4800 CON
T9600 CON
T19K2 CON
T38K4 CON
#CASE BS2SX, BS2P
T1200 CON
T2400 CON
Copyright © Parallax Inc.
0 ' Pushbutton switch (active LOW)
12 ' Piezo element (for alarm sound)
13 ' Serial output to LCD
8 ' Serial output to LRF (connects to SIN)
9 ' Serial input from LRF (connects to SOUT)
813
396
188
84
32
6
2063
1021
Parallax Laser Range Finder (#28044) v1.0 9/16/2011 Page 21 of 24