[TDav540]

Originally Posted by Caleb Sykes

Every team receives an ultrasonic sensor as a PDV. This is a perfect sensor to be used for not slamming into walls at full speed in auto. There are dozens of other sensors that cost less than $50 that could also be implemented to stop teams from driving full speed into walls.

There are legitimate reasons why teams might not be able to stop themselves from driving into walls, such as inexperienced programmers or lack of programming time with the robot. However a lack of free/affordable sensors is not one of them.

While you have a valid point about the cost of the device....

Originally Posted by Abrakadabra

In the future, you might want to consider an ultrasonic sensor (relatively cheap, but prone to signal scatter from the diamond plate walls) or for a little more money, one of the new compact LIDAR units.

.....this is also true. Ultrasonics would probably help often, but they aren't a perfect system.