Hello. My name is Darin Roberts, I am the children's Pastor in Tarpon Springs Florida.
I have some experience in building ic projects from schematics, but have never really learned how to create the schematic my self. So far I have made a 4 player quiz circuit, and a 32 channel random selector. Now I am looking at wanting to build a manual advance stop light system.
I would like to push a button - dpst - having one throw go to a buzzer which will sound for as long as the button is pushed. The second throw will send a signal to the IC board to move the indicator from where it is to the next color. Red (push) Green (push) yellow (push) Red...... I will use a triac on each channel to power the A/C light in the Stop Light Unit.
As I said, I have a VERY small understanding of how and why different IC chips are used, but I do have a few basics. I looked at using a 4011 NAND gate to make sure the signal from the switch is clean. From there, the best Schematic I found was to feed the clean signal into a 74LS191n, to a 74std154n with a 74F112n (this was for a Night rider light or a dragster tree).
My church is on a limited budget and I am also on somewhat of a time crunch, so I have not had the resources to try to buy stuff and breadboard it out. I would hate to buy parts and not have it work, and have to buy more.
Can you please assist me? I am willing to build it, and buy the parts, I just need the schematic.
> Hello. My name is Darin Roberts, I am the children's Pastor in Tarpon Springs Florida.
> I have some experience in building ic projects from schematics, but have never really learned how to create the schematic my self. So far I have made a 4 player quiz circuit, and a 32 channel random selector. Now I am looking at wanting to build a manual advance stop light system.
> I would like to push a button - dpst - having one throw go to a buzzer which will sound for as long as the button is pushed. The second throw will send a signal to the IC board to move the indicator from where it is to the next color. Red (push) Green (push) yellow (push) Red...... I will use a triac on each channel to power the A/C light in the Stop Light Unit.
> As I said, I have a VERY small understanding of how and why different IC chips are used, but I do have a few basics. I looked at using a 4011 NAND gate to make sure the signal from the switch is clean. From there, the best Schematic I found was to feed the clean signal into a 74LS191n, to a 74std154n with a 74F112n (this was for a Night rider light or a dragster tree).
> My church is on a limited budget and I am also on somewhat of a time crunch, so I have not had the resources to try to buy stuff and breadboard it out. I would hate to buy parts and not have it work, and have to buy more.
> Can you please assist me? I am willing to build it, and buy the parts, I just need the schematic.
> Hello. My name is Darin Roberts, I am the children's Pastor in Tarpon Springs Florida.
> I have some experience in building ic projects from schematics, but have never really learned how to create the schematic my self. So far I have made a 4 player quiz circuit, and a 32 channel random selector. Now I am looking at wanting to build a manual advance stop light system.
> I would like to push a button - dpst - having one throw go to a buzzer which will sound for as long as the button is pushed. The second throw will send a signal to the IC board to move the indicator from where it is to the next color. Red (push) Green (push) yellow (push) Red...... I will use a triac on each channel to power the A/C light in the Stop Light Unit.
> As I said, I have a VERY small understanding of how and why different IC chips are used, but I do have a few basics. I looked at using a 4011 NAND gate to make sure the signal from the switch is clean. From there, the best Schematic I found was to feed the clean signal into a 74LS191n, to a 74std154n with a 74F112n (this was for a Night rider light or a dragster tree).
> My church is on a limited budget and I am also on somewhat of a time crunch, so I have not had the resources to try to buy stuff and breadboard it out. I would hate to buy parts and not have it work, and have to buy more.
> Can you please assist me? I am willing to build it, and buy the parts, I just need the schematic.
Hi Darin, This sounds simple. Look up a MC14017 on digikey (or
somewhere) Once you've got the input debounced (the hardest part
perhaps) send the pulse train into the MC14017 you get three separated
signals out. Then you just need to reset the thing on the third
output. (I think just hooking Q3 to the reset will work.)
As for the power do you need big lights or would LEDs work too? If
you do want the big lights then maybe three relays would be better
than triac's. (At least that would be easier for me.)
> Hello. My name is Darin Roberts, I am the children's Pastor in Tarpon > Springs Florida.
> I have some experience in building ic projects from schematics, but have > never really learned how to create the schematic my self. So far I have > made a 4 player quiz circuit, and a 32 channel random selector. Now I am > looking at wanting to build a manual advance stop light system.
> I would like to push a button - dpst - having one throw go to a buzzer > which will sound for as long as the button is pushed. The second throw > will send a signal to the IC board to move the indicator from where it is > to the next color. Red (push) Green (push) yellow (push) Red...... I will > use a triac on each channel to power the A/C light in the Stop Light Unit.
> As I said, I have a VERY small understanding of how and why different IC > chips are used, but I do have a few basics. I looked at using a 4011 NAND > gate to make sure the signal from the switch is clean. From there, the > best Schematic I found was to feed the clean signal into a 74LS191n, to a > 74std154n with a 74F112n (this was for a Night rider light or a dragster > tree).
> My church is on a limited budget and I am also on somewhat of a time > crunch, so I have not had the resources to try to buy stuff and breadboard > it out. I would hate to buy parts and not have it work, and have to buy > more.
> Can you please assist me? I am willing to build it, and buy the parts, I > just need the schematic.
Hi Darin, This sounds simple. Look up a MC14017 on digikey (or
somewhere) Once you've got the input debounced (the hardest part
perhaps) send the pulse train into the MC14017 you get three separated
signals out. Then you just need to reset the thing on the third
output. (I think just hooking Q3 to the reset will work.)
As for the power do you need big lights or would LEDs work too? If
you do want the big lights then maybe three relays would be better
than triac's. (At least that would be easier for me.)
George H.
==================================================
Might be safer if you designed it to use leds and ran everything on 12 volts DC. Especially if kids are involved.
Use a wall wart power supply and there won't be any certification issues, hence no insurance problems.
Darin wrote:
> Hello. My name is Darin Roberts, I am the children's Pastor in
> Tarpon Springs Florida.
> I have some experience in building ic projects from schematics, but
> have never really learned how to create the schematic my self. So far
> I have made a 4 player quiz circuit, and a 32 channel random
> selector. Now I am looking at wanting to build a manual advance stop
> light system.
> I would like to push a button - dpst - having one throw go to a
> buzzer which will sound for as long as the button is pushed. The
> second throw will send a signal to the IC board to move the
> indicator from where it is to the next color. Red (push) Green
> (push) yellow (push) Red...... I will use a triac on each channel to
> power the A/C light in the Stop Light Unit.
> As I said, I have a VERY small understanding of how and why different
> IC chips are used, but I do have a few basics. I looked at using a
> 4011 NAND gate to make sure the signal from the switch is clean.
> From there, the best Schematic I found was to feed the clean signal
> into a 74LS191n, to a 74std154n with a 74F112n (this was for a Night
> rider light or a dragster tree).
> My church is on a limited budget and I am also on somewhat of a time
> crunch, so I have not had the resources to try to buy stuff and
> breadboard it out. I would hate to buy parts and not have it work,
> and have to buy more.
> Can you please assist me? I am willing to build it, and buy the
> parts, I just need the schematic.
> Thank you for your time and consideration.
Easiest would be to "cheat" and pull something similar off the web, like
this:
In your case you'd wire up IC1 (which is a simple NE555) as a one-shot
instead of an oscillator. Meaning a push of a button results in a pulse
of pre-determined length. That de-bounces your push button so you no
longer have to worry about that. You'd also hang a buzzer on your
push-button for the sound effect. You probably also don't want to
combine and return to reset on an earlier count than they do.
Relays are best and safest. If you aren't too experienced my suggestion
is to stay away from triacs because with those you would not have a real
isolation between mains stuff and your low voltage circuit. Play it
safe, especially with kids aroudn how might decide to open things up
some day.
Attention: This circuit has a flaw, they forgot the flyback diodes
across the relays. I'd use a ULN2003, it has 7 relay driver transistors
plus 7 diodes built in and only costs about 30c in singles. Tie the COM
pin to your relay supply voltage:
> Hello. My name is Darin Roberts, I am the children's Pastor in Tarpon Springs Florida.
> I have some experience in building ic projects from schematics, but have never really learned how to create the schematic my self. So far I have made a 4 player quiz circuit, and a 32 channel random selector. Now I am looking at wanting to build a manual advance stop light system.
> I would like to push a button - dpst - having one throw go to a buzzer which will sound for as long as the button is pushed. The second throw will send a signal to the IC board to move the indicator from where it is to the next color. Red (push) Green (push) yellow (push) Red...... I will use a triac on each channel to power the A/C light in the Stop Light Unit.
> As I said, I have a VERY small understanding of how and why different IC chips are used, but I do have a few basics. I looked at using a 4011 NAND gate to make sure the signal from the switch is clean. From there, the best Schematic I found was to feed the clean signal into a 74LS191n, to a 74std154n with a 74F112n (this was for a Night rider light or a dragster tree).
> My church is on a limited budget and I am also on somewhat of a time crunch, so I have not had the resources to try to buy stuff and breadboard it out. I would hate to buy parts and not have it work, and have to buy more.
> Can you please assist me? I am willing to build it, and buy the parts, I just need the schematic.
Why are you doing this?
If you want to learn how to wire hardware bits together, you're on the
right track.
If you want to make something for the kids...a RESULT,
buy an Arduino board or similar and do it in software.
You'll learn a useful skill.
You can make lots of different demos for the kids easily, once
you get set up. The stuff is available at Radio Shack, but it's
cheaper on EBAY.
You can even let the kids edit the software.
Everybody wins.
I'd bet you even have someone in the congregation who'd help
get you started.
Or, you could just write a simple computer program that simulates
the lights on the screen. Or use the parallel port to work the
switches/lights.
I'd bet you even have someone in the congregation who'd
donate a computer and teach you how to do it.
>> I have some experience in building ic projects from schematics, but have >> never really learned how to create the schematic my self. So far I have >> made a 4 player quiz circuit, and a 32 channel random selector. Now I am >> looking at wanting to build a manual advance stop light system.
>> I would like to push a button - dpst - having one throw go to a buzzer >> which will sound for as long as the button is pushed. The second throw >> will send a signal to the IC board to move the indicator from where it is >> to the next color. Red (push) Green (push) yellow (push) Red...... I will >> use a triac on each channel to power the A/C light in the Stop Light Unit.
>> As I said, I have a VERY small understanding of how and why different IC >> chips are used, but I do have a few basics. I looked at using a 4011 NAND >> gate to make sure the signal from the switch is clean. From there, the >> best Schematic I found was to feed the clean signal into a 74LS191n, to a >> 74std154n with a 74F112n (this was for a Night rider light or a dragster >> tree).
>> My church is on a limited budget and I am also on somewhat of a time >> crunch, so I have not had the resources to try to buy stuff and breadboard >> it out. I would hate to buy parts and not have it work, and have to buy >> more.
>> Can you please assist me? I am willing to build it, and buy the parts, I >> just need the schematic.
> Hi Darin, This sounds simple. Look up a MC14017 on digikey (or
> somewhere) Once you've got the input debounced (the hardest part
> perhaps) send the pulse train into the MC14017 you get three separated
> signals out. Then you just need to reset the thing on the third
> output. (I think just hooking Q3 to the reset will work.)
> As for the power do you need big lights or would LEDs work too? If
> you do want the big lights then maybe three relays would be better
> than triac's. (At least that would be easier for me.)
The MOC3010 datasheet has a good triac driver circuit
cheaper than a solid state relay, more reliable, (if not cheaper than)
a mechanical relay.
but yeah, low voltage LED is to be preferred if practical, if connecting LEDs directly fo thr '4017 isn't bright enough
Having a 12V supply, with the '4017 driving darlinton transistors driving perhaps 3 or 4 high-efficiency LEDs in series might be
enough.
> On 9/24/2012 9:43 AM, Darin wrote:
>> Hello. My name is Darin Roberts, I am the children's Pastor in Tarpon >> Springs Florida.
>> I have some experience in building ic projects from schematics, but have >> never really learned how to create the schematic my self. So far I have >> made a 4 player quiz circuit, and a 32 channel random selector. Now I am >> looking at wanting to build a manual advance stop light system.
>> I would like to push a button - dpst - having one throw go to a buzzer >> which will sound for as long as the button is pushed. The second throw >> will send a signal to the IC board to move the indicator from where it >> is to the next color. Red (push) Green (push) yellow (push) Red...... I >> will use a triac on each channel to power the A/C light in the Stop Light >> Unit.
>> As I said, I have a VERY small understanding of how and why different IC >> chips are used, but I do have a few basics. I looked at using a 4011 >> NAND gate to make sure the signal from the switch is clean. From there, >> the best Schematic I found was to feed the clean signal into a 74LS191n, >> to a 74std154n with a 74F112n (this was for a Night rider light or a >> dragster tree).
>> My church is on a limited budget and I am also on somewhat of a time >> crunch, so I have not had the resources to try to buy stuff and >> breadboard it out. I would hate to buy parts and not have it work, and >> have to buy more.
>> Can you please assist me? I am willing to build it, and buy the parts, I >> just need the schematic.
> Why are you doing this?
> If you want to learn how to wire hardware bits together, you're on the
> right track.
> If you want to make something for the kids...a RESULT,
> buy an Arduino board or similar and do it in software.
> You'll learn a useful skill.
> You can make lots of different demos for the kids easily, once
> you get set up. The stuff is available at Radio Shack, but it's
> cheaper on EBAY.
> You can even let the kids edit the software.
> Everybody wins.
> I'd bet you even have someone in the congregation who'd help
> get you started.
> Or, you could just write a simple computer program that simulates
> the lights on the screen. Or use the parallel port to work the
> switches/lights.
> I'd bet you even have someone in the congregation who'd
> donate a computer and teach you how to do it.
Totally agree. Use a micro board, interface it via a ULN2003 to relays.
You asked the reason - Result. Fast, simple, RESULT. As a children's minister, I daily deal with kids on meds, family counsiling, web site maintainance, graphic design, music......... It always seems I come up with great theme ideas, just never sure how to get it done, and don't usually have the time to study and develop another new skill. I know how to solder, I know how to run wire, so learning to build IC boards was not a huge stretch, as long as someone gives me the schematic with pin outs. Conect A to B, Pin 2 to Pin 5..... I asked people in congragation, no one is in that field. So I turned to groups. I appreciate all the help.
This circuit is actually going to be done 2 times, once for the boys side, once for the girls side. If one group of kids starts to get out of control, I push the button, and light goes to yellow - at red, their side does not get to participate in games at end of service (time waiting for Adults to finish). Sort of a positive peer preasure thing. One stop light for each side.
On 9/25/2012 7:41 PM, kidpreac...@hotmail.com wrote:
> You asked the reason - Result. Fast, simple, RESULT. As a children's minister, I daily deal with kids on meds, family counsiling, web site maintainance, graphic design, music......... It always seems I come up with great theme ideas, just never sure how to get it done, and don't usually have the time to study and develop another new skill. I know how to solder, I know how to run wire, so learning to build IC boards was not a huge stretch, as long as someone gives me the schematic with pin outs. Conect A to B, Pin 2 to Pin 5..... I asked people in congragation, no one is in that field. So I turned to groups. I appreciate all the help.
> This circuit is actually going to be done 2 times, once for the boys side, once for the girls side. If one group of kids starts to get out of control, I push the button, and light goes to yellow - at red, their side does not get to participate in games at end of service (time waiting for Adults to finish). Sort of a positive peer preasure thing. One stop light for each side.
It would be more flexible, more reliable and a lot easier for you
to use 2 spdt toggle switches for each side, and a single on/off
switch (not shown) to turn Vin on or off. The circuit below will
work with either AC or DC.
With the above, turning on yellow (sw2) turns off green, and
turning on red (sw1) turns off yellow (or green if you want
to go directly from green to red).
That way it gives you the flexibility to go from yellow back to
green or from red back to yellow (or green) if you want, and the position of the toggles tells you what light is supposed to be on.
With the push button scheme you are stuck going in one direction
only, and an accidental push of the button would require cycling
through to get back to the correct color.
> On 9/25/2012 7:41 PM, kidpreac...@hotmail.com wrote:
> > You asked the reason - Result. Fast, simple, RESULT. As a children's minister, I daily deal with kids on meds, family counsiling, web site maintainance, graphic design, music......... It always seems I come up with great theme ideas, just never sure how to get it done, and don't usually have the time to study and develop another new skill. I know how to solder, I know how to run wire, so learning to build IC boards was not a huge stretch, as long as someone gives me the schematic with pin outs. Conect A to B, Pin 2 to Pin 5..... I asked people in congragation, no one is in that field. So I turned to groups. I appreciate all the help.
> > This circuit is actually going to be done 2 times, once for the boys side, once for the girls side. If one group of kids starts to get out of control, I push the button, and light goes to yellow - at red, their side does not get to participate in games at end of service (time waiting for Adults to finish). Sort of a positive peer preasure thing. One stop light for each side.
> It would be more flexible, more reliable and a lot easier for you
> to use 2 spdt toggle switches for each side, and a single on/off
> switch (not shown) to turn Vin on or off. The circuit below will
> work with either AC or DC.
> With the above, turning on yellow (sw2) turns off green, and
> turning on red (sw1) turns off yellow (or green if you want
> to go directly from green to red).
> That way it gives you the flexibility to go from yellow back to
> green or from red back to yellow (or green) if you want, and the
> position of the toggles tells you what light is supposed to be on.
> With the push button scheme you are stuck going in one direction
> only, and an accidental push of the button would require cycling
> through to get back to the correct color.
>Hello. My name is Darin Roberts, I am the children's Pastor in Tarpon Springs Florida.
>I have some experience in building ic projects from schematics, but have never really learned how to create the schematic my self. So far I have made a 4 player quiz circuit, and a 32 channel random selector. Now I am looking at wanting to build a manual advance stop light system.
>I would like to push a button - dpst - having one throw go to a buzzer which will sound for as long as the button is pushed. The second throw will send a signal to the IC board to move the indicator from where it is to the next color. Red (push) Green (push) yellow (push) Red...... I will use a triac on each channel to power the A/C light in the Stop Light Unit.
>As I said, I have a VERY small understanding of how and why different IC chips are used, but I do have a few basics. I looked at using a 4011 NAND gate to make sure the signal from the switch is clean. From there, the best Schematic I found was to feed the clean signal into a 74LS191n, to a 74std154n with a 74F112n (this was for a Night rider light or a dragster tree).
>My church is on a limited budget and I am also on somewhat of a time crunch, so I have not had the resources to try to buy stuff and breadboard it out. I would hate to buy parts and not have it work, and have to buy more.
>Can you please assist me? I am willing to build it, and buy the parts, I just need the schematic.
Is this a one way street? (how many signal faces?)
Will the signal be portable (stored away except on meeting days and times,
lots of permit issues here)?
Does the signal need to be reasonably "crash safe"?
Do you already have appropriate signing, striping, and pavement markings?
Sorry, but this dropped in no more than the first circle out from the
bulls eye of what i done for a living for the past ~20 years.
Think carefully about whether / how you wish to reply.
On Tue, 25 Sep 2012 16:41:34 -0700 (PDT), kidpreac...@hotmail.com wrote:
>You asked the reason - Result. Fast, simple, RESULT. As a children's minister, I daily deal with kids on meds, family counsiling, web site maintainance, graphic design, music......... It always seems I come up with great theme ideas, just never sure how to get it done, and don't usually have the time to study and develop another new skill. I know how to solder, I know how to run wire, so learning to build IC boards was not a huge stretch, as long as someone gives me the schematic with pin outs. Conect A to B, Pin 2 to Pin 5..... I asked people in congragation, no one is in that field. So I turned to groups. I appreciate all the help.
>This circuit is actually going to be done 2 times, once for the boys side, once for the girls side. If one group of kids starts to get out of control, I push the button, and light goes to yellow - at red, their side does not get to participate in games at end of service (time waiting for Adults to finish). Sort of a positive peer preasure thing. One stop light for each side.
Oh, not on a street; big difference. That answers many of my questions.
How big of an indication in inches do you need? I am going to assume perfboard construction as that is what i would likely
do in this instance.
In general tell us more about what you want.
