PIC 16f877a Traffic Light System (need help)

[FinalDK]

I'm having difficulties doing my project. I'm doing a normal traffic light system (4 lanes, NORTH,SOUTH,EAST,WEST) but I can't seem to get it right both hardware and programming-wise. I'm using MATLAB IDE v8.63, programmer PICkit 2, HI-TECH Universal ToolSuite (HI-TECH ANSI C Complier). Currently using PIC16f877a only (no others). I have more to this project but I can't get even the normal traffic light sequence right. Please help, I will hopefully get the circuit diagram done in about 4-5 hours time from now.

A total of 16 LED (2 green, 1 red, 1 yellow, for each corner)
I'm also going to put 4 RF interupt inside as input to interrupt the sequences. Any help will be very useful. I'm not sure about the about of PORTS (not the issue about QUANTITY but USAGE)

 

[MrDEB]

Need more info?
4 RF interrupts? assuming remote control?
Every traffic light I have seen use 1 red, 1 green, 1 yellow and sometimes an arrow.
must be Eurpoean or ?

 

[FinalDK]

I'm testing the PIC with this code. The schematic diagram I'm unable to do in time. Basically it's like this (at the link) minus the reset. I can't seem to get it right when I program it. The simulation works fine.

https://www.google.com.my/imgres?q=pic16f877a+LED+light+up+c+language+program&hl=en&sa=G&biw=1280&bih=919&tbm=isch&tbnid=9335a87NlrpXYM:&imgrefurl=https://www.mikroe.com/eng/chapters/view/17/chapter-4-examples/&docid=BRvGXgoQl5FfxM&imgurl=http://www.mikroe.com/img/publication/pic-books/programming-in-c/chapter/04/fig4-29.gif&w=690&h=525&ei=omjnTta_EsznrAeU6oCkBw&zoom=1&iact=hc&vpx=181&vpy=117&dur=784&hovh=196&hovw=257&tx=153&ty=62&sig=106387782738643906702&page=1&tbnh=132&tbnw=178&start=0&ndsp=30&ved=1t:429,r:0,s:0

 

[FinalDK]

MrDEB : Yes, 4 RF interrupts. I'm doing the interrupt for the case of emergency vehicles (mainly ambulance) stuck in traffic. Somewhat prioritizing the lane of the emergency vehicle. 4 lights, yes, European (left-side of the road). Green has 2, one for going straight and another to turn right. The right arrow doesn't need red and/or yellow since in my country it's understood that you can't turn right when the green light to the right isn't turned up. I understood on how to do the sequences but I have problem that I'm unable to apply in real-time, mainly programming or hardware. Simulations worked fine. I perhaps has some error in the program so I need some samples to refer on. I checked around and most are not using the same PIC or has add-ons (like timer or other PIC). I'm trying not to play things that I have no clue whatsoever.

 

[Nikini]

I'm also doing a project same as this. I'm not a best programmer. I already implemented the code for 4 way junction. But the problem is it's not working properly. Can you help me please? First i want implement the normal traffic light system. Please check my code and let me know the modification that I want to correct. Hope any one can help me!

 

[MrDEB]

A schematic would help
is this homework??

 

[Nikini]

The 3rd year project that we should do...

 

[Nikini]

i considered 4 way junction and take J1,J2,J3,J4 as junction1, junction2,junction3,junction4... Coding might be confused..