Passing through walls. 2d toolkit

Sorry for asking another question about this topic. There seem to be many and from what I've looked through and tried I haven't got the results I've wanted yet.

I've created a few sprites on screen with 2d toolkit. I want one box to act as a wall and be impassable to the player. Instead the player passes right through it. Am I taking the right approach here? Or will this not work at all. I've seen some people talking about using rays and calculating collisions themselves to support this. But this just seems a little overkill and I expected more basic Unity features to handle this.

I've created a script, where I move the player's characterController in Update (If I'm not mistake it belongs here rather than FixedUpdate. FixedUpdate is used if your applying forces to move the rigidbody. Correct me if I am wrong.).

The way I thought to do it was to make the wall sprite: - A static collider (BoxCollider) - no rigidbody

The player has: -a CharacterController(its collider) - a rigidbody with no gravity. isKinematic is unchecked.

 using UnityEngine;
 using System.Collections;
 
 
 public class Controls : MonoBehaviour {
 
     public int xSpeed = 32;
     public int ySpeed = 32;
     protected CharacterController control;
     
     // Use this for initialization
     void Start () {
         control = GetComponent<CharacterController>();
         if (control == null) {
             Debug.LogError("No character controller set for '" + name + "'");
         }
     }
     
     
     // Update is called once per frame
     void Update () {
         float xTrans = Input.GetAxisRaw("Horizontal") * xSpeed;
         float yTrans = Input.GetAxisRaw("Vertical")  * ySpeed;
         xTrans *= Time.deltaTime;
         yTrans *= Time.deltaTime;
         Vector3 move = new Vector3(xTrans, yTrans, 0);
         control.Move(move);
     }
 }