BASIC stamp manual v2.2

BUTTON – BASIC Stamp Command Reference

Page 140 • BASIC Stamp Syntax and Reference Manual 2.2 • www.parallax.com

Demo Program (BUTTON.bs2)

' BUTTON.bs2

' Connect an active-low circuit to pin P0 of the BS2. When you press the

' button, the DEBUG screen will display an asterisk (*). The program, as

' shown below, will print an asterisk at the first button press, then

' delay approximately one second (200 x 5 ms PAUSE) before auto-repeating

' at a rate of approximately 100 ms (5 x 20 ms). Feel free to modify the

' program to see the effects of your changes on the way BUTTON responds.

' {$STAMP BS2}

' {$PBASIC 2.5}

Btn PIN 0

btnWrk VAR Byte

Main:

' Try changing the Delay value (200) in BUTTON to see the effect of

' its modes: 0 = no delay; 1-254 = varying delays before auto-repeat;

' 255 = no auto-repeat (only one action per button press)

' The BUTTON instruction will cause the program to branch to

' No_Press unless P0 = 0

PAUSE 5

BUTTON Btn, 0, 200, 20, btnWrk, 0, No_Press

DEBUG "*"

No_Press:

GOTO Main

All

NOTE: This example program can be

used with all BS2 models by changing

the $STAMP directive accordingly.