Traffic light simulator

Project: Traffic light simulator
Featured:	No
State	Planned
Members	Xopr
GitHub	No GitHub project defined. Add your project here.
Description	School example of implementing traffic lights
Picture

Some brain dump on charlieplexing 8(x3) traffic lights, 4(x2) pedestrian lights, 8 sensors. each number is a pin

        | 36  63     |
      45|            |
      67|            |
        |            |
      16|            |16  12
      72|            |72  34
--------'            '--------

                            37

51                          73

15

--------.            .--------
  45  16|            |16
  67  72|            |72
        |            |
        |            |12
        |            |34
        |     25  52 |
Bottom-right example:
Main traffic lights use a Z-shape connection so that with 90 degrees turn, all combinations are used
1 2
o-o
 /
o-o
3 4
21: Green-A
12: Orange-A
23: Red-A
32: Orange-B
34: Red-B
43: Green-B

Pedestrian light uses L-shaped pinout so that opposing lights carry the same signal
1 6
o o
  |
o-o
7 2
16: Red-A
62: Red-B
27: Red-C
71: Red-D
61: Green-A
26: Green-B
72: Green-C
17: Green-D

rest:
35,53