help using 4017 decade counter

[jabboo]

I have a problem
I recently put together a simple circuit
involving a 555 timer and a 4017 decade counter
the 555 timer is set to 2 seconds
ive connected 10 LED's to the 4017 counter
and it works sort of ...
well the lights go on like there meant to
(led 1 turns on, then off then led 2 turns on (led1 switches off) then led3
on ( led 2 off) and so on..)
so there is always only 1 LED turned on .
my problem comes when it gets to the end of the row and has to repeat.. no
LED's turn on
well there is a delay between ..( led 10 turning on and led 1 turning on
which means that there isn't any led's turned on)
is it possible to get rid of this gap so there is always one led turned on.

am I making sense ?

any ideas?

--
Anthony jabbour

 

[gcd]

Hi,
Make sure both CLK enable and RESET are tied to GND.

If they are, how long is this gap? I think that's it could be an optical
illusion. Try putting the LEDS in a circle and see if that still happens

Try the circle and let us know what happens.

Greg

"jabboo" <jabboo@(nospam)optusnet.com.au> wrote in message
news:3f2b3be2$0$15131$afc38c87@news.optusnet.com.au...

I have a problem
I recently put together a simple circuit
involving a 555 timer and a 4017 decade counter
the 555 timer is set to 2 seconds
ive connected 10 LED's to the 4017 counter
and it works sort of ...
well the lights go on like there meant to
(led 1 turns on, then off then led 2 turns on (led1 switches off) then
led3
on ( led 2 off) and so on..)
so there is always only 1 LED turned on .
my problem comes when it gets to the end of the row and has to repeat.. no
LED's turn on
well there is a delay between ..( led 10 turning on and led 1 turning on
which means that there isn't any led's turned on)
is it possible to get rid of this gap so there is always one led turned
on.

am I making sense ?

any ideas?

--
Anthony jabbour

 

[jabboo]

lol found my problem
only 9 leds
last one wasn't there
must of miscounted
no wonder there was a gap
I feel very stupid

--
Anthony jabbour


"gcd" <gcdnoSPAM@austarmetro.com.au> wrote in message
news:3f2b4238@news.comindico.com.au...

Hi,
Make sure both CLK enable and RESET are tied to GND.

If they are, how long is this gap? I think that's it could be an optical
illusion. Try putting the LEDS in a circle and see if that still happens

Try the circle and let us know what happens.

Greg

"jabboo" <jabboo@(nospam)optusnet.com.au> wrote in message
news:3f2b3be2$0$15131$afc38c87@news.optusnet.com.au...
I have a problem
I recently put together a simple circuit
involving a 555 timer and a 4017 decade counter
the 555 timer is set to 2 seconds
ive connected 10 LED's to the 4017 counter
and it works sort of ...
well the lights go on like there meant to
(led 1 turns on, then off then led 2 turns on (led1 switches off) then
led3
on ( led 2 off) and so on..)
so there is always only 1 LED turned on .
my problem comes when it gets to the end of the row and has to repeat..
no
LED's turn on
well there is a delay between ..( led 10 turning on and led 1 turning on
which means that there isn't any led's turned on)
is it possible to get rid of this gap so there is always one led turned
on.

am I making sense ?

any ideas?

--
Anthony jabbour

 

[gcd]

he he,
it happens

Cheers

"jabboo" <jabboo@(nospam)optusnet.com.au> wrote in message
news:3f2b8954$0$15132$afc38c87@news.optusnet.com.au...

lol found my problem
only 9 leds
last one wasn't there
must of miscounted
no wonder there was a gap
I feel very stupid

--
Anthony jabbour


"gcd" <gcdnoSPAM@austarmetro.com.au> wrote in message
news:3f2b4238@news.comindico.com.au...
Hi,
Make sure both CLK enable and RESET are tied to GND.

If they are, how long is this gap? I think that's it could be an optical
illusion. Try putting the LEDS in a circle and see if that still happens

Try the circle and let us know what happens.

Greg

"jabboo" <jabboo@(nospam)optusnet.com.au> wrote in message
news:3f2b3be2$0$15131$afc38c87@news.optusnet.com.au...
I have a problem
I recently put together a simple circuit
involving a 555 timer and a 4017 decade counter
the 555 timer is set to 2 seconds
ive connected 10 LED's to the 4017 counter
and it works sort of ...
well the lights go on like there meant to
(led 1 turns on, then off then led 2 turns on (led1 switches off) then
led3
on ( led 2 off) and so on..)
so there is always only 1 LED turned on .
my problem comes when it gets to the end of the row and has to
repeat..
no
LED's turn on
well there is a delay between ..( led 10 turning on and led 1 turning
on
which means that there isn't any led's turned on)
is it possible to get rid of this gap so there is always one led
turned
on.

am I making sense ?

any ideas?

--
Anthony jabbour

 

[Rod Speed]

"jabboo" <jabboo@(nospam)optusnet.com.au> wrote in message news:3f2b8954$0$15132$afc38c87@news.optusnet.com.au...

lol found my problem
only 9 leds
last one wasn't there
must of miscounted
no wonder there was a gap
I feel very stupid

A Jap would at least have the decency to disembowel itself |-)

--
Anthony jabbour


"gcd" <gcdnoSPAM@austarmetro.com.au> wrote in message
news:3f2b4238@news.comindico.com.au...
Hi,
Make sure both CLK enable and RESET are tied to GND.

If they are, how long is this gap? I think that's it could be an optical
illusion. Try putting the LEDS in a circle and see if that still happens

Try the circle and let us know what happens.

Greg

"jabboo" <jabboo@(nospam)optusnet.com.au> wrote in message
news:3f2b3be2$0$15131$afc38c87@news.optusnet.com.au...
I have a problem
I recently put together a simple circuit
involving a 555 timer and a 4017 decade counter
the 555 timer is set to 2 seconds
ive connected 10 LED's to the 4017 counter
and it works sort of ...
well the lights go on like there meant to
(led 1 turns on, then off then led 2 turns on (led1 switches off) then
led3
on ( led 2 off) and so on..)
so there is always only 1 LED turned on .
my problem comes when it gets to the end of the row and has to repeat..
no
LED's turn on
well there is a delay between ..( led 10 turning on and led 1 turning on
which means that there isn't any led's turned on)
is it possible to get rid of this gap so there is always one led turned
on.

am I making sense ?

any ideas?

--
Anthony jabbour