Also our team constructs a measuring gauge with a wheel/tire the same size of the one on your robot. They put one of those orange pointers on an axle and use some beams to make a handle. They then just set it down with the point in a know position and then push it and count rotations. 360 degrees = 1 rotation. This way they don't have to guess, program, download, run and rinse repeat so often. It saves time. On Sat, Oct 9, 2010 at 6:30 AM, Lloyd O'Hara <[log in to unmask]> wrote: > Heather, > > One thing for your team to lookout for is battry charge. When the battery > charge lowers, it may take more time (seconds) to travel the same amount of > distance as it did when the battery was fully charged. (see Curt's handrill > analogy in a recent email). > > Our team generally uses degrees (1/360 of the circumference of the wheels > you are using). Degrees, as well as other sensors, can be easily measured > using the "View" function on the NXT. > > Lloyd > > > ----- Original Message ----- From: "Heather Houlden" <[log in to unmask]> > To: <[log in to unmask]> > Sent: Friday, October 08, 2010 10:05 PM > Subject: Re: [VADCFLL-L] using sensors > > >> It is my first year as well, so we are learning too. However, my kids are >> measuring the distances the robot needs to travel. >> We programmed the robot to travel in a straight line for a set time (I >> think it was 10 sec). Then they measured the distance travelled, and I >> had them compute the seconds per inch travelled. >> >> Then they just multiply the seconds/inch by the number of inches the >> robot needs to move, so that they can program the number of seconds >> to move. >> So far it seems to be working OK for them. There may be an easier way >> to do it, but this is what they came up with. >> Hope this helps! >> Heather >> Team Blockbusters >> >> -- 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-ADMIN-L. >> Visit https://listserv.jmu.edu/archives/vadcfll-admin-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-ADMIN-L. Visit > https://listserv.jmu.edu/archives/vadcfll-admin-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-ADMIN-L. Visit https://listserv.jmu.edu/archives/vadcfll-admin-l.html to subscribe.