Optional extra features:
- GPS - choice of two modern GPS modules: Trimble Lassen iQ, with excellent weak signal performance and position accuracy to approximately 10 meters, or u-blox LEA-5S with even better performance in tough signal environments, "KickStart" rapid startup acquisition and support for WAAS, giving centimeter-level accuracy in North America. Either GPS provides good quality heading information making them valuable even in applications where the position error is too great to be of direct use.
- 3-axis accelerometer - measures accelerations up to 3.6g in any direction. Ideal for tilt sensing, UAV autopilot or IMU Kalman filter applications.
- Z axis rate gyroscope - measure rotation rate about the vertical axis, i.e. heading / yaw, up to 150 degrees/sec (300 deg/s available, email for details). UAV turn rate indicator or IMU applications.
- X and Y axis rate gyroscope - rotation rate information for the two horizontal axes. 500 degree/sec full-scale. Suitable for UAV artificial horizon or IMU.
- Magnetic compass - 2-axis magnetometer gives magnetic heading information, essential as a steady reference for a Kalman filter-based IMU, as well as for general navigation orientation. Accurate to better than 1 degree with motors off, but quite strongly affected by motors - correction may be applied in software, or stop the motors to take a compass measurement.
Do not order this board. This person has taken money and then not shipped product to multiple people.
Posted by: Fred | December 14, 2008 at 11:35 PM