collider between Box Collider and Character Controller

Questions & Answers
1

I have a problem with detecting collisions between Box Collider and Character Controller.

Is there any way to detect the collision between them?

2

You can only detect collisions if one of the objects involved has a rigidbody component added.

So, for example: Say you have a box (With rigidbody and box-collider) and a player (with a CharacterController) and you needed to know when the box collided with the player, you would use OnCollisionEnter() in a script attached to the box.

OR

If you needed to tell if the player collided with the box, you would use OnControllerColliderHit() in a script attached to the player.

3

You should set Box collider as trigger, so your character Controller can enter it,otherwise the character will stop at the specified boundary. Also your character should have a “rigidbody” component attached to it.
Create a empty gameobject then attach a box collider component to it, and create a script,
in your script define a function :

void OnTriggerEnter(Collider other){
print (other.name);
}