I've looked at those. They're all single axis and have PWM interfaces. The single-axis part I can deal with (but I don't want to), though the PWM is more complexity that I want, especialy when I'd have to deal with 3 channels of it. Justin Fielding wrote: > > Buy a Heading lock piezo gyro used in model helicopters. look at > www.towerhobbies.com or www.futaba-rc.com > > ----- Original Message ----- > From: "Brandon Fosdick" > To: > Sent: Thursday, March 08, 2001 3:48 AM > Subject: Re: [EE]:Angular Rate Sensors > > > They're small enough, but the USB interface is more complicated than what > I'm > > looking for. > > > > Nicholas Irias wrote: > > > > > > Tokin makes single axis piezo gyrometers and they are available in small > > > quantities. They also have an all-in-one unit at > > > http://www.tokin.com/Tokin_America_Products/46/p46a/p46a.html > > > > > > At least with piezo units, you will have some drift over time. Most > > > applications of these units use a high pass filter to get rid of the > drift, > > > but that means you cant use them to detect slow, steady rotation. > > > > > > ----- Original Message ----- > > > From: "Brandon Fosdick" > > > To: > > > Sent: Wednesday, March 07, 2001 11:36 AM > > > Subject: [EE]:Angular Rate Sensors > > > > > > > After seeing all of the discussion about using accelerometers in model > > > > rockets I decided to look into making a full inertial measurement unit > > > > on the cheap and real small. Digikey has surface mount 3-axis > > > > accelerometers ($25 ea). Does anybody know of a good source for > angular > > > > rate sensors? Naturally I'd like to find a single chip with all 3 axes > > > > on it, so far I can only find single axis chips. > > > > > > > > I know you can buy full IMU's commercially but they tend to be > expensive > > > > and bulky. If anyone knows of an inexpensive source for IMU's let me > > > > know. > > > > > > > > -Brandon > > > > > > > > P.S. I'm looking for sources in the US. > > > > > > > > -- > > > > http://www.piclist.com hint: To leave the PICList > > > > mailto:piclist-unsubscribe-request@mitvma.mit.edu > > > > > > > > > > > > > > -- > > > http://www.piclist.com hint: To leave the PICList > > > mailto:piclist-unsubscribe-request@mitvma.mit.edu > > > > -- > > http://www.piclist.com hint: To leave the PICList > > mailto:piclist-unsubscribe-request@mitvma.mit.edu > > > > > > > > -- > http://www.piclist.com hint: PICList Posts must start with ONE topic: > [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads