My brother got this at school I cant help him with, I am thankfull for any help/advices
On a street there are 2 traffic lights - one for people and one for cars.
Both traffic lights have a button for switching.
1) Traffic lights can only show "green" and "red"
2) If the cars are green, the pedestrians have red
3) one of the two buttons is pressed, the traffic lights change the state
Draw a circuit.
What I tried (not correct and kinda without any sense I guess):
Our final solution (not sure if correct or not - using 1 button to switch only)