Subject:
|
Re: Compass/directional sensor
|
Newsgroups:
|
lugnet.robotics
|
Date:
|
Mon, 14 Dec 1998 07:10:23 GMT
|
Original-From:
|
Peter Hesketh <pbh@phesk.demon.co.ANTISPAMuk>
|
Viewed:
|
1459 times
|
| |
|
|
In article <002101be26fe$548a96f0$2b00c8c0@tim.ams.co.nz>, Tim McSweeney
<tim@ams.co.nz> writes
> 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 what happens at the
> black-white meeting, If the light sensor detects this as a mid-gray you'd be
> out be 180deg.
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 there a Gray Scale which wraps around between 359
and 000 degrees with a single but change? That would work.
--
Regards - Peter Hesketh, Mynyddbach, Mon.
Forty reasons why a dog is better than a woman: number 12
"Dogs love red meat."
|
|
Message has 1 Reply:
 | | RE: Compass/directional sensor
|
| (...) 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)
|
Message is in Reply To:
| | RE: Compass/directional sensor
|
| 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)
|
6 Messages in This Thread:
  
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
This Message and its Replies on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
Active threads in Robotics
|
|
|
|
|
|
