I made the same mistake. The HiTechnic is not allowed.
It has to be a Lego product and look like the one on page 18 of this pdf:
Coach, The Crestwood Monarchs
----- Original Message -----
From: "Randy Greene" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, October 15, 2012 12:40 AM
Subject: Re: [VADCFLL-L] VADCFLL-L Digest - 13 Oct 2012 to 14 Oct 2012
> Sure could use some guidance on the color sensor; is the HiTechnic color
> sensor allowed? I thought I was buying the correct sensor but it says
> HiTechnic and my understanding is that only pure Lego sensors are allowed.
> Randy Greene
> Richmond Eaglebots
> Richmond NSBE-BDPA Bots
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