Oh yeah, you could even use it sans the PIC if you're feeling wacky. On 10/31/05, James Humes wrote: > > Debbie, > That looks like a pretty nice IMU in that it takes care of some of the > sticking points of IMU design for you, but I'm not sure if its really wha= t > you'd want for an autonomous aerial vehicle. Go to www.analog.comand you can get samples of their two axis accel.'s and I th= ink even of their > 3 axis gyro. These are all QFN (or similar) surface mount parts, so > depending on how you feel about them, you can go to a site (like > www.sparkfun.com ) and get them already mounte= d > on breakout boards. If you'd like to go with a more complete unit, (someo= ne > said this above I think) they have a system that has an accel. on each ax= is > and a gyro on each axis. They also have some comm. equipment that might b= e > useful as you get into the project. > If your only goal is to measure the pitch and roll of the plane, then a > single 2 axis accel. from analog devices could meet your needs. They're v= ery > easy to use. > James > > On 10/31/05, Robert Rolf wrote: > > > > > > > > Debbie wrote: > > > --- James Humes wrote: > > > > > > > > >>It was listed in [EE], so call "regular" circuits fair game:) I'd put > > a PIC > > >>in the mix given by Peter. I've heard of using resistive photocells > > for > > >>horizon detectors before, which would keep the pitch stable and then > > use a > > >>tilt sensor of some kind on the roll axis... all read in by the PIC > > which > > >>can make its decisions and output servo signals. > > >> James > > > > > > > > > Sounds good to me. I had a look @ Tokin's offerings. Check out their > > 3D motion > > > sensor:- > > > > > > http://www.nec-tokin.com/english/product/3d/index.html > > > Crikey! It's a 3-in-one mini gizmo and even has USB! > > > Debbie > > > > > > Interesting that it does NOT have 'mouse mode' for newer O/Ss. > > Only 98/ME. I doubt that this product ever made it to market. > > > > Does anyone remember the old Gyropoint mouse?. You could lift > > it off your desk and still use it to point. Used a Murata rate > > gyro. > > But I could buy a mouse with two sensor in it cheaper > > than I could get Murata's sensor in OEM research quantities, so there > > were a lot of dead rodents in our lab. > > > > Yet the gyropoint never caught on. > > > > Does anyone have a source for small quantities of these units? > > > > Robert > > > > > > -- > > http://www.piclist.com PIC/SX FAQ & list archive > > View/change your membership options at > > http://mailman.mit.edu/mailman/listinfo/piclist > > > > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist