Help with Neopixel project

[Why_at]

Hi,
I'm trying to make a strip of neopixels follow a person as they walk down a hallway. I currently have them connected to a ping ultrasonic sensor and an Arduino UNO. It has kinda worked but it's more sporadic than I would like. I don't think the ping is accurate enough at long distances. Any suggestions?

[Franklin97355]

What distance are you trying to achieve? You could use a different sonic range finder or breakbeam sensors across the hallway or pressure pads on the floor.

[Why_at]

The distance is the length of our hallway, which is about 9 feet, I would like to use only one, or as few sensors as possible.
Pressure pads aren't an option, breakbeams sound like they would take a lot of them (one every foot?).
Do you have any suggestions for a different sonic range finder?
Thanks for your reply.

[Franklin97355]

Maxbotix carries a range of sensors. http://www.maxbotix.com

[Why_at]

Thanks for the tip, after looking at the website I've decided on the LV max sonar EZ line, but am not sure which beam width to get, I'm thinking EZ1-2? What do you recommend? Thanks.
(Hallway is 3ft 3in wide by 9ft long)