I agree. Gyro sensor was just not consistent. A balanced robot using odometry was always better. Color/light sensors always worked for us in the past 4 years. No issues with any of the tables at any tournament. No calibration was ever needed. On Fri, Nov 9, 2018 at 10:04 AM Frank Levine <[log in to unmask]> wrote: > 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. -- 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.