I completely forgot about R/C heli gyros (I used to fly R/C). What kind of output do you get from them? PWM? How accurate are they with regard to temperature and gyroscopic precession? - Jeff Cesnik Andy Kunz wrote: > >inertial force, not orientation. Is there a formula to extract > angular > >rate information from an accelerometer reading over time? Sure would > > Integration. That's what we do in the "heading hold" gyros for helis. > > Andy > > ================================================================== > Andy Kunz - Montana Design - 409 S 6th St - Phillipsburg, NJ 08865 > Hardware & Software for Industry & R/C Hobbies > "Go fast, turn right, and keep the wet side down!" > ==================================================================