 | | Re: Compass/directional sensor
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-----Original Message----- From: Mark Schroeder & Jenise Uehara <msju@pobox.com> To: 'lego-robotics@crynwr.com' <lego-robotics@crynwr.com> Date: Saturday, December 12, 1998 11:34 AM Subject: Compass/directional sensor Has any seen or made one of (...) (26 years ago, 13-Dec-98, to lugnet.robotics)
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| | Re: Compass/directional sensor
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I remember seeing that someone had used a compass and the light sensor to be able to detect weather they were moving north or south. But I don't think they could tell between the two. I might be mistaken but I think there was a picture in the (...) (26 years ago, 14-Dec-98, to lugnet.robotics)
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| | RE: Compass/directional sensor
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You could mount a printed disk on a comapss needle and use some sort of encoding via the light sensor to determine your direction. By changing the shade from white to black you'd probably be able to get a decent angle reading. The only tricky bit is (...) (26 years ago, 14-Dec-98, to lugnet.robotics)
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| | Re: Compass/directional sensor
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In article <002101be26fe$548a96...ms.co.nz>, Tim McSweeney <tim@ams.co.nz> writes (...) If you could find a code which only changes by one bit at any transition you would be OK. I know that the Gray Scale does this for linear measurement, but is (...) (26 years ago, 14-Dec-98, to lugnet.robotics)
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| | RE: Compass/directional sensor
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I like this idea quite a bit. Instead of going starting white and progressing all 360 degrees to black, though, how about having pure white represent 0 degrees and progressing through gray to black at 180 degrees and then back to white? You would (...) (26 years ago, 14-Dec-98, to lugnet.robotics)
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| | RE: Compass/directional sensor
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(...) I'm sure there are gray codes that do this but from mewmory gray codes are used to encode rotation as a binary number and we only have the one light sensor. Tim (26 years ago, 14-Dec-98, to lugnet.robotics)
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