Lloyd,

This is with the EV3 sensors. I highly recommend having spare sensors
during the tournament. We went with 2 identical robots and luckily did not
have the sensor issue but better to be prepared.

Regards
Neelam

On Tue, Nov 11, 2014 at 7:51 AM, Lloyd O'Hara <[log in to unmask]> wrote:

>  Thanks for the change Brittany.
>
> Neelam,
>
> Was this NXT or EV3.  I ask because we are relying heavily on our NXT
> color sensors and we only have two, both in use.  I may have to quickly
> order a couple more if folks are seeing this with the NXT.
>
> Thanks,
>
> Lloyd
>
> ----- Original Message -----
> *From:* Brittany Rose <[log in to unmask]>
> *To:* [log in to unmask]
> *Sent:* Tuesday, November 11, 2014 7:44 AM
> *Subject:* [VADCFLL-L] Issues with color sensor
>
> Replying to change the subject from "thank you" to "issues with color
> sensor" so that this thread can be searched up more easily in the archives.
>
>  On Nov 11, 2014, at 7:42 AM, Neelam Kadam wrote:
>
>  We have the same issue. Once in a while, the color sensor just stops
> sensing green! Faulty sensors?
>
> On Tue, Nov 11, 2014 at 7:07 AM, Skip Morrow <[log in to unmask]> wrote:
>
>>  Wow. Add us to the list of teams with color sensor issues this past
>> weekend. Many of our missions relied on the sensor, and had been working
>> nearly perfectly in team practices.
>>
>> When we got to the tournament, we did pretty good on our practice round.
>> But then for round 1 no missions worked. We hadn't changed anything, so we
>> were puzzled. Back in the pit, we troubleshot and troubleshot. We could
>> tell that the sensor was changing from color mode to light intensity mode
>> for no apparent reason. You should see a blue-ish light coming from the
>> sensor when it is in color mode. A reddish light indicates light intensity
>> mode. Depending on the settings of the wait block, the sensor should
>> automatically select the correct mode. Well, ours would spontaneously
>> switch over to light intensity mode, even though we never use light
>> intensity.
>>
>> Round two came and went and we got lucky on one mission. We still had not
>> figured out what was going on. Finally, we tried our backup robot. And
>> everything worked perfectly. 100%. It just never occurred to us that we
>> could be facing a hardware issue.
>>
>> For round three we went to the table and all of our missions worked.
>>
>>
>> .
>>
>> On Mon, Nov 10, 2014 at 6:35 PM, Monson Gmail <[log in to unmask]>
>> wrote:
>>
>>>  Jill,
>>>
>>> We had a similar issue with color sensor, but we build a shield around
>>> the sensor and the issue was resolved. We researched and found this
>>> solution.
>>>
>>> Thanks,
>>> Monson
>>> Rookie coach of Future Geekbots
>>>
>>>
>>> On Nov 10, 2014, at 6:23 PM, Jill Hamilton <[log in to unmask]>
>>> wrote:
>>>
>>>   Amy, thanks for sharing.  We found this too.  Our EV3 color sensor
>>> wouldn’t read green.  We realized it was too close to the table.  I am
>>> curious what you learned during the competition that helped.
>>>
>>>
>>>
>>> Thanks
>>>
>>> Jill Hamilton
>>>
>>> Coach of Cyborg Piñata 3335
>>>
>>> Coach of the Mechanical Manatees
>>>
>>> Coach of the Electric Pineapples
>>>
>>>
>>>
>>> *From:* First Lego League in Virginia and DC [
>>> mailto:[log in to unmask] <[log in to unmask]>] *On
>>> Behalf Of *Amy Nichols
>>> *Sent:* Sunday, November 09, 2014 10:15 AM
>>> *To:* [log in to unmask]
>>> *Subject:* [VADCFLL-L] Thank you!
>>>
>>>
>>>
>>> I want to offer a huge thank you from The Ruling Robot Falcons to Karen
>>> Berger and all the organizers, judges, referees, and volunteers that helped
>>> put on the regional tournament in Newport News yesterday.  Our kids had
>>> such a fun time and I appreciate all the work that was put into it!  I
>>> think the referees were cheering for all the kids as much as the coaches
>>> were!  Thank you all!
>>>
>>>
>>>
>>> I also want to add a note about real Gracious Professionalism that
>>> happened for our team yesterday.  When we arrived at the school yesterday
>>> and our kids ran their robot on the practice boards, they discovered that
>>> nothing on their robot worked.  All their missions were dependent on the
>>> color sensor, which had was only randomly seeing certain colors.  They
>>> tried everything they could think of to fix it, but then got the idea to
>>> see if the other teams that had EV3's could help.  So they went around the
>>> room asking other teams if they had any ideas or knew how to calibrate a
>>> color sensor (one of the things they thought perhaps was wrong).   The
>>> other teams all stopped what they were doing to help our kids try to
>>> problem solve and help think of what could be wrong.  It was very apparent
>>> that these kids were not just there to win a tournament...but they really
>>> loved being there and wanted to help.  This just made me love FIRST/FLL
>>> even more than I already did, and realize just how great this organization
>>> is!
>>>
>>>
>>>
>>> Thank you all!
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>>
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