My team totally gave up on the gyro - the 3* accuracy was just too inconsistent. They found that with the right tires, odometry is definitely "better" for them. I can also confirm that shielded light sensors work pretty well. We've used them every year (and will be using them this year too) -Frank On Fri, Nov 9, 2018 at 7:34 AM Jeff Borek <[log in to unmask]> wrote: > I agree with Skip, notably conditions will be different and mechanical > shielding helps. I’d just add that what worked for my team last year (I > never used a formal calibration routine with my 4th and 5th graders): > > You probably can take a quick reading over black and white on a > competition table [port view of on the brick] on the morning of the > competition. If your tournament doesn't allow you access to the table you > can use some time in your practice round and then make necessary changes to > set-points in the programs for the later rounds. > > Also probably obvious but my team found this year that is better to look > for white than black given the dark background of most of the mat. [Alas] > they have given up on light sensor (and gyro) because they find odometry > "better" this year. > > On Fri, Nov 9, 2018 at 6:44 AM Skip Morrow <[log in to unmask]> wrote: > >> Yes, you should absolutely expect the lighting conditions to be different >> on each table you play on. Take that from experience! Now, that doesn't >> mean it WILL be different--just that you should EXPECT it to be different. >> That includes practice tables being different from the competition tables >> and different from your tables at home/school. There are different >> strategies for dealing with the variances, including mechanical >> (shielding), calibrations, and strategies that avoid relying on the sensor. >> >> . >> >> >> On Fri, Nov 9, 2018 at 5:13 AM LR <[log in to unmask]> wrote: >> >>> Experts ... We are using light sensor in our model... We are testing >>> under the normal household "White Day Light" lights to sense the white >>> color on the poster.....Will there be any color variation on the >>> competition ....meaning how to tackle the Reflected Light Intensity >>> variation from household light to the competition place lights. Any >>> suggestion is appreciated. >>> >>> -- 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.