a small micro controller made for a 1x3 screen it displays 4 routes(5 if you count the not in route) intended for decoration of passenger trains these routes include ''A'' Terminal spycakes - Terminal camodo ''B'' Terminal spycakes - north harbor
''C'' Terminal spycakes - south station(south station is a random end point of the rail route if you go south of sawyer) and finally ''D'' Terminal spycakes - Terminal endo. Now the controll's are quite simple plug the number input to a normal 1x1 keypad now to enter the desired route you have to type in the required number
0 = not in route
1 = A route
2 = B route
3 = C route
4 = D route
Quite simple i recomend just useing one micro controller per train locomotive/carriage.