Potentiometer as voltage divider

[fungus]

Grumpy_Mike:

mrjonny2:
I would use a linear regulator to drop that voltage down to 5V to prevent any damage to the arduino and then have the potentiometer to give your 0-5V range

Glad you are not on my project. Only a beginner would ever consider doing this. It is just so wrong.

Sounds like a simple potential divider would do the job.