button count Game project problem

Archiver

I am making a button count Game project. I use the "pulsin" command
to count the no. of button pushed. When I push the button faster, the
LED bar graph will rise higer. However, sometimes, the LED bar graph
will suddenly rise to the highest position. Could anyone please help
me to solve it ? Or anyone have some ideas for this project ? Thanks.

Here's my program:'Button Count Game
cycles var word
start var byte
period var word
counter var byte
pattern var byte
n var word
dirs = $ffff
start = 0
check:
outs = %10000000000000
freqout 15,500,950,2500
'Push Start Botton to Start
play:
BUTTON 11, 1,255,0,start,1,loop 'press start button to start
goto play

loop:
'debug cls
'debug "start!", cr
'pause 1000: debug "Read, set...",cr: pause 500
'debug "go!", cr: pause 100
n = 0
cycles = 0
outs = %01000000000000
freqout 15,500,950,2500
pause 50
for counter = 1 to 30

playing:
outs = n
n = n/2 ' decrease the position
debug "counter: ", dec counter, cr
pulsin 10,1,cycles 'count the cycles of button pressed
'count 10,period,cycles 'count How Fast
debug "cycles: ", dec cycles
if 5 > cycles AND cycles >= 1 then one ' rise 1 LED
if 10 > cycles AND cycles >= 5 then two 'rise 2 LED
if 15 > cycles AND cycles >= 10 then three 'rise 3
if 25 > cycles AND cycles >= 20 then four 'rise 4
if 30 > cycles AND cycles >= 25 then five 'rise 5
if 35 > cycles AND cycles >= 30 then six 'rise 6
if 40 > cycles AND cycles >= 35 then seven 'rise 7
if 45 > cycles AND cycles >= 40 then eight 'rise 8
if 50 > cycles AND cycles>= 45 then nine 'rise 9
if 55 > cycles AND cycles >=50 then ten 'rise 10
if cycles >= 55 OR 1 < cycles then zero 'goto zero
next
goto check

zero:
n = n /2
goto playing

one:
n = 1
goto playing

two:
outs = 1 : pause 10
n = 2
goto playing

three:
outs = 1 : pause 10
outs = 2 : pause 10
n = 4
goto playing

four:
outs = 1 : pause 10
outs = 2 : pause 10
outs = 4 : pause 10
n = 8
goto playing

five:
debug "very very fast", cr
outs = 1 : pause 10
outs = 2 : pause 10
outs = 4 : pause 10
outs = 8 : pause 10
n = 16
goto playing

six:
outs = 1 : pause 10
outs = 2 : pause 10
outs = 4 : pause 10
outs = 8 : pause 10
outs = 16: pause 10
n = 32
goto playing

seven:
outs = 1 : pause 10
outs = 2 : pause 10
outs = 4 : pause 10
outs = 8 : pause 10
outs = 16 : pause 10
outs = 32 : pause 10
n = 64
goto playing

eight:
outs = 1 : pause 10
outs = 2 : pause 10
outs = 4 : pause 10
outs = 8 : pause 10
outs = 16 : pause 10
outs = 32 : pause 10
outs = 64 : pause 10
n = 128
goto playing

nine:
outs = 10 : pause 10
outs = 2 : pause 10
outs = 4 : pause 10
outs = 8 : pause 10
outs = 16 : pause 10
outs = 32 : pause 10
outs = 64 : pause 10
outs = 128 : pause 10
n = 256
goto playing

ten:
outs = 1 : pause 10
outs = 2 : pause 10
outs = 4 : pause 10
outs = 80 : pause 10
outs = 16 : pause 10
outs = 32 : pause 10
outs = 64 : pause 10
outs = 128 : pause 10
outs = 256 : pause 120
outs = 512
for f = 0 to 20
freqout 15,1000,f+20,3500
n = 512
goto playing

Thank you.

Archiver

I haven't examined your code very thoroughly, but there's a 99% chance that
your problem is due to contact bounce.
when a mechanical switch or button is opened and closed, it doesn't make a
perfect connection right away (this is why lots of audio equipment makes pops
and clicks when you flip switches.) these noises are called contact bounce,
and the stamp is fast enough to 'see' them happening, so instead of counting
the one pulse on the button, you're counting the many pulses from the bounce
of the contact.

Jason Lavoie

Felix Chan <flexchan@h...> said:

> I am making a button count Game project. I use the "pulsin" command
> to count the no. of button pushed. When I push the button faster, the
> LED bar graph will rise higer. However, sometimes, the LED bar graph
> will suddenly rise to the highest position. Could anyone please help
> me to solve it ? Or anyone have some ideas for this project ? Thanks.

Archiver

either debounce the switch with hardware or put in a delay loop that is
slightly slower that it is humanly possible to push the button - this should
be long enough to allow the bounce to damp out. my 1st guess would be
something like the equiv of "delay(0.001)"



richard

---

Original Message

---

From: <jlavoie@e...>
To: <basicstamps@egroups.com>
Sent: Monday, June 26, 2000 8:13 AM
Subject: Re: [noparse][[/noparse]basicstamps] button count Game project problem


> I haven't examined your code very thoroughly, but there's a 99% chance
that
> your problem is due to contact bounce.
> when a mechanical switch or button is opened and closed, it doesn't make a
> perfect connection right away (this is why lots of audio equipment makes
pops
> and clicks when you flip switches.) these noises are called contact
bounce,
> and the stamp is fast enough to 'see' them happening, so instead of
counting
> the one pulse on the button, you're counting the many pulses from the
bounce
> of the contact.
>
> Jason Lavoie
>
> Felix Chan <flexchan@h...> said:
>
> > I am making a button count Game project. I use the "pulsin" command
> > to count the no. of button pushed. When I push the button faster, the
> > LED bar graph will rise higer. However, sometimes, the LED bar graph
> > will suddenly rise to the highest position. Could anyone please help
> > me to solve it ? Or anyone have some ideas for this project ? Thanks.
>
>
>
>
>