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! >>> ------------------------------ >>> >>> To UNSUBSCRIBE or CHANGE your settings, please visit >>> https://listserv.jmu.edu/archives/vadcfll-l.html and select "Join or >>> leave the list". >>> VADCFLL administrative announcements are sent via >>> VADCFLL-ANNOUNCEMENTS-L. Visit >>> https://listserv.jmu.edu/archives/vadcfll-announcements-l.html to >>> subscribe. >>> ------------------------------ >>> To UNSUBSCRIBE or CHANGE your settings, please visit >>> https://listserv.jmu.edu/archives/vadcfll-l.html and select "Join or >>> leave the list". >>> VADCFLL administrative announcements are sent via >>> VADCFLL-ANNOUNCEMENTS-L. Visit >>> https://listserv.jmu.edu/archives/vadcfll-announcements-l.html to >>> subscribe. >>> >>> ------------------------------ >>> To UNSUBSCRIBE or CHANGE your settings, please visit >>> https://listserv.jmu.edu/archives/vadcfll-l.html and select "Join or >>> leave the list". >>> VADCFLL administrative announcements are sent via >>> VADCFLL-ANNOUNCEMENTS-L. Visit >>> https://listserv.jmu.edu/archives/vadcfll-announcements-l.html to >>> subscribe. >>> >> >> ------------------------------ >> To UNSUBSCRIBE or CHANGE your settings, please visit >> https://listserv.jmu.edu/archives/vadcfll-l.html and select "Join or >> leave the list". >> VADCFLL administrative announcements are sent via >> VADCFLL-ANNOUNCEMENTS-L. Visit >> https://listserv.jmu.edu/archives/vadcfll-announcements-l.html to >> subscribe. >> > > ------------------------------ > To UNSUBSCRIBE or CHANGE your settings, please visit > https://listserv.jmu.edu/archives/vadcfll-l.html and select "Join or > leave the list". > VADCFLL administrative announcements are sent via VADCFLL-ANNOUNCEMENTS-L. > Visit https://listserv.jmu.edu/archives/vadcfll-announcements-l.html to > subscribe. > > > ------------------------------ > To UNSUBSCRIBE or CHANGE your settings, please visit > https://listserv.jmu.edu/archives/vadcfll-l.html and select "Join or > leave the list". > VADCFLL administrative announcements are sent via VADCFLL-ANNOUNCEMENTS-L. > Visit https://listserv.jmu.edu/archives/vadcfll-announcements-l.html to > subscribe. > > ------------------------------ > To UNSUBSCRIBE or CHANGE your settings, please visit > https://listserv.jmu.edu/archives/vadcfll-l.html and select "Join or > leave the list". > VADCFLL administrative announcements are sent via VADCFLL-ANNOUNCEMENTS-L. > Visit https://listserv.jmu.edu/archives/vadcfll-announcements-l.html to > subscribe. > -- To UNSUBSCRIBE or CHANGE your settings, please visit https://listserv.jmu.edu/archives/vadcfll-l.html and select "Join or leave the list". -- VADCFLL administrative announcements are sent via VADCFLL-ANNOUNCEMENTS-L. 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