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| Electronic Projects Design/Ideas/Reviews Are you building an electronic project or want to? Maybe you need some assistance? Come and submit your electronic questions here and let our experienced members find a solution. |
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6th September 2004, 06:21 AM
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 traffic light controller
i have a question here on how to design a traffic light controller. The controller should be be able to control a traffic light at 4-turn junction ( cross junction)
__________________ http://www.circles99.com/elements/al...mysweet_1_.gif | |
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6th September 2004, 06:23 PM
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A traffic light controller is just a finite state machine. The easiest way to do it is to draw the state diagram and then you can directly convert the state diagram to code for a micro or some vhdl. For example, the start state is 1 light red, the other green, then go to yellow, then red, then pause, then the other goes green, etc. | |
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6th September 2004, 07:54 PM
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Something like this?
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6th September 2004, 07:55 PM
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Or like this?
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6th September 2004, 08:01 PM
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I have Lots more!
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6th September 2004, 11:36 PM
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:lol: This has to be the most popular school project given to people to teach them how to do something of all time. | |
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7th September 2004, 04:56 AM
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I don't agree. The Code Practice Oscillator is more popular beginners project. | |
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7th September 2004, 01:44 PM
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how about a PIC based traffic light controller? has anyone built such a traffic light system? hotwaterwizard can u explain the Code Practice Oscillator circuit???? | |
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7th September 2004, 03:31 PM
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As for popular state machine type projects, the three that I see reappear each term are 1) traffic light controller, 2) eleveator controller, 3) soda machine.
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7th September 2004, 07:13 PM
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i wanted to know the traffic light controller FSM state table. i have 8 current state, 4 inputs( RESET, C, TL, TS) , there are the next steps also, and 4 outputs.(each output has R Y G). R is red, Y is yellow, and G is green. how can i do the K-maps from the outputs? how about the state diagram? how about the final ASM chart for the traffic light controller that has 8 current state? please.....
__________________ http://www.circles99.com/elements/al...mysweet_1_.gif | |
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8th September 2004, 03:01 AM
| #11 | |
| Quote:
The new thread is located Here http://www.electro-tech-online.com/v...ic.php?t=11316 | ||
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12th September 2004, 05:33 AM
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wile were on this subject, ive always wundered about this: Is there a way to control trafic lights remotely? I see these little things on the top of the light that i think are sensors cuz they have a cover over the top to filter out sunlight im guessing, and i think that there are two sensors, one on top of the other. can ambulances n fire truks control them via IR?
__________________ I'm no electronics god, i just talk too much. | |
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12th September 2004, 05:33 PM
| #13 |
| Traffic light controller kit
Check this link for a kit to build a traffic light controller. http://www.plans-kits.com/kits/index.html | |
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22nd September 2004, 09:49 AM
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hotwaterwizard . . . i tried sim ur ckt in an elec. workbench . . .it doesnt seem to work i tried it all . . . it doesnt to work though i'am trying to build a traffic light controller too . . . like teh concept of ur design .. . . and can you explain wat is d function of the DECADE COUNTER in the ckt? THX !!! | |
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23rd September 2004, 04:56 AM
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Here is the original link. http://www.redcircuits.com/Page72.htm | |
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| Tags |
| controller, light, traffic |
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