basic stamp

marcuz

·need help trying to use basic stamp for a game show buzzer circuit. i'm having trouble
getting only one led to light. if any of you programming genuis can help greatly appreciated.



' {$STAMP BS2}
' {$PORT COM4}
' {$PBASIC 2.5}
INPUT 1·········· 'switch to emcee box
INPUT 11········· 'contestant #1 switch
INPUT 13········· 'contestant #2 switch
INPUT 15········· 'contestant #3 switch
OUTPUT 0········· 'emcee buzzer
OUTPUT 3········· 'contestant buzzer
OUTPUT 5········· 'contestant #1 lamp
OUTPUT 7········· 'contestant #2 lamp
OUTPUT 9········· 'contestant #3 lamp
main:
OUT0 = IN1······· 'set buzzer to switch emcee switch
OUT5 = IN11······ 'set lamp 1 to switch 1
OUT7 = IN13······ 'set lamp 2 to switch 2
OUT9 = IN15······ 'set lamp 3 to switch 3
'DEBUG ? IN1
DEBUG ? IN13
DEBUG ? IN15
DEBUG ? IN11
DEBUG ? OUT3
IF IN1 = 1 THEN·· 'ring buzzer to alert emcee
OUT0 =1
PAUSE 2000
OUT0 = 0
PAUSE 2000
ENDIF
IF IN11 = 1 THEN·· 'ring buzzer to alert emcee
OUT3 =1
OUT5 =1
PAUSE 2000
OUT3 = 0
OUT5 = 0
PAUSE 2000
ENDIF
IF IN13 = 1 THEN·· 'ring buzzer to alert emcee
OUT3 = 1
OUT7 = 1
PAUSE 2000
OUT3 = 0
OUT7 = 0
PAUSE 2000
ENDIF
IF IN15 = 1 THEN·· 'ring buzzer to alert emcee
OUT3 = 1
OUT9 = 1
PAUSE 2000
OUT3 = 0
OUT9 = 0
PAUSE 2000
ENDIF
'PAUSE 500········ 'short pause
GOTO main········ 'start over

Mike Green

You need to include a drawing of your circuit,

marcuz

SORRY MIKE NOT ABLE TO ATTACH FILES TRIED TO CUT AND PAST BUT NO GO. IT IS A VERY BASIC CIRCUIT WITH 4 SWITCHES WITH PULL DOWN RESISTORS 220 OHMS AND 10K OHMS AND 3 LEDS WITH 470 OHMS ALL CONNECTED TO VARIOUS PINS. THE SWITCHES I USED FOR MY BUZZER INPUTS AND THE LEDS DISPLAY THE FIRST BUZZER. i COULD EMAIL IT TO YOU IF YOU LIKE>

marcuz

·ok let's try this one. I think this it the proper schematic. I've abandoned the emcee protion of the circuit for now. I'm trying to concentrate on
getting the switches to lock each other out.

Mike Green

Look at the schematic in "What's a Microcontroller?" (download link is here: www.parallax.com/tabid/535/Default.aspx) on page 76. Also read the discussion there on pages 75-79. Notice the way the pushbuttons are wired here rather than in your schematic.