Stop Light Design

Lets do it with a quad opamp, the bob pease way....

martin

Opinions are like assholes -- everyone has one

snipped-for-privacy@thejrcgroup.com wrote in news:1112042663.569593.215250 @o13g2000cwo.googlegroups.com:

I just did this for a friend of a coworker. I was going to do it with a PicAxe-08 or discrete logic, but I bought a small commercally available kit that contains the PCB and components to build a miniature traffic light with 12 LEDs. There is one set of red, yellow and green LED's in each of the 4 directions. East and west LED's are wired in series, as are North and South) The sequencing is built in, and the switch rate is adjustable with a trim pot. About $20 for the kit. Cheaper than starting from scratch. I left one set of Rd/Yl/Gn LED's on the board and wired three SSR's to the LED solder pads for those in opposite direction. The SSR outputs control the 110vac lamps in the real traffic light.

For the kit, Google for: Velleman V-MK131 Traffic Light Kit

The SSR's were provided by the coworker, an electrician, but any 5-32vdc input/120-240vac output SSR's should work.

My guess is that it won't be long before my coworker's friend turns them off, puts in lower wattage bulbs, or a dimmer on the lights. Having that flashing all the time, in my rec room, would quickly put me into siezures.

"Jim Thompson"

You've got questions, we've got blank stares. ;-) I was in there looking for an audio matching transformer for isolating a micro project from the phone line. In order to assist me, the "tech" needed to know what the transformer transformed from or into. :-/

On Tue, 29 Mar 2005 01:46:59 GMT, "Anthony Fremont" sort of wrote (In the title):

Heavy design is what this group enjoys most, so you probably have come to the right forum.

And with enough power available, why not just let the smoke out of anything that annoys you.

Actually, engineers tend to think very rationally and can have great wisdom on subjects that they are interested.

Actually, they like things well-reasoned. I am not a 'conservative' per se, but accept views from the right and/or left. If I have an emotional, poorly reasoned view on a subject, it is usually associated with the left.

The problem with the US political left and right, it is that they don't match with liberal and conservative. Some of the most reactionary or intolerant people are leftists, and some of the most laissez faire people that I know do live their lives with great care and wisdom.

I tend NOT to like the terms 'liberal' and/or 'conservative' because they are generally misnomers. For a fun time, have a discussion with an American 'liberal' and you'll find them to raise their voices and act irrationally. For example, Al Franken or Carville tend towards the left, and also tend to be the worst loudmouths and intolerant namecallers. On the other hand, you'll find that even Rush Limbaugh tends to be a personally tolerant and almost kindly/quiet person.

Who is more judgemental, Michael Moore or Rush Limbaugh? Who is the most pleasant person, Sean Hannity or Al Franken? You'll find that the equivalent leftist has the most undesirable traits in a personal interaction sense. At best (from the leftist standpoint), the leftist equivalent is just as obnoxious as the rightie.

BTW, who is most likely to give the finger to people who don't like him? John Kerry or President Bush? Who is most likely to use the word 'F*CK', John Kerry or President Bush?

For rudeness, and low class behavior, it is most expected that the leftist be the worst boor.

John

John

Free Will is anathema to them,

F*ck you.

Ok, you made me give the straight line.

I'll dispense with the detailed analysis 'cause you've obviously already run all the parameters you care to deal with.

If it weren't for boors who would you send to war?

Geez Win, you've got me in trouble again (see later in thread) and I was just making an apolitical joke about the ambiguity of the subject line.

Except that his opamps would be built out of 74C04's biased into the linear region :-).

Tim.

The hand is no longer listening, talk to the red light instead. ;-)

There you go being rational again, John.

Wish I could learn to shut up until I had something rational to add. Umm, nope. I'm not well enough informed to come close to your kind of discourse. I don't even know what your message means, exactly.

Were you a betting man, would you venture that the world in general is in a more positive or negative state at the current position relative to what has happened in Iraq?

Sorry. Feel free to ignore my question if you'd rather not play.

One of the bugaboos about separating people into the two camps is the lack of a dimension. There's the "control your body" axis and the "take your money" axis - this might put some perspective (amongst many other examples from

So, do you favor Love, or Murder?

Cheers! Rich

I read in sci.electronics.design that John S. Dyson wrote (in ) about 'Stop Light Design', on Tue, 29 Mar 2005:

That's by no means peculiar to USA; it applies everywhere. Political dogma doesn't go along a straight line from left to right; it loops back at the 'Communist' and 'Fascist' ends to a region called 'Totalitarian', characterized by extreme oppression and exploitation of the individual by the State.

The far-left regimes in USSR and China have been extremely reactionary and intolerant, just like the former far-right regimes. And there are several still around, such as Myanmar and North Korea.

OK. So you don't know.

Peace movement in the US? Maybe at some higher political level that applies to the Irish/English thing. To be honest nobody in my realm of knowledge has an opinion, other than those who speak with an Irish accent or have ancestors.

Well our policy for that must be up for grabs or adjustment on a moments notice, since I have never heard the slightest discussion of it in any public forum. Sorry, but true. They could tweak the f**k out of any given policy in that reguard and only the small percentage of our populace who had a vested interest would notice.

What exactly are you "plugging in"? There are kits available for simulation like this:

I read in sci.electronics.design that xray wrote (in ) about 'Stop Light Design', on Tue, 29 Mar 2005:

It's too soon to say. The events in Israel/Palestine and Lebanon suggest s limited 'domino effect' - the disputing parties seeing less advantage in pursuing the disputes now that they are no longer pawns in a US/USSR power game and that their intransigence may exhaust the patience of USA, but whether the effect will persist long enough to result in long-term resolutions is quite another matter.

But there appears to be another emerging effect - a growing 'peace' movement in USA. I don't mean a John Lennon-type movement but a drawing-back from support for traditional confrontations. The indicator is the recent shunning of Sinn Fein/IRA by former sympathisers. This will actually *strengthen* Sinn Fein in its internecine struggle with the extreme militants. In that context, it may be also significant that the latter are becoming even more desperate than before; we have been warned that they may mount new attacks in Britain.

Dude, you da man. If it is a newer LED based traffic light, would it still work?

You didn't mention anything about the increased hatred of America by those who have a religious or other secular motivation to hate the US. This war surely wont affect that at all.

Just being devils advocate on what I think was a bad long term gamble.

I have no idea...