The Honeywell HMR2300 is a three-axis smart digital magnetometer to detect the strength and direction of an incident magnetic field. The three of Honeywell’s magneto-resistive sensors are oriented in orthogonal directions to measure the X, Y and Z vector components of a magnetic field. These sensor outputs are converted to 16-bit digital values using an internal delta-sigma A/D converter. An onboard EEPROM stores the magnetometer’s configuration for consistent operation. The data output is serial full-duplex RS-232 or half-duplex RS-485 with 9600 or 19,200 data rates.
The Honeywell HMR3400 is a digital compass solution designed for use in navigation and precision pointing applications. Honeywell’s magnetoresistive sensor technology is coupled with a MEMS accelerometer to provide a miniature, reliable tilt-compensated electronic compass. Using a common set of commands from the legacy HMR3300 digital compass solution, the HMR3400 is designed to be easily integrated into host systems with a regulated 5 volt supply and a UART serial data interface.
The HMR3400 includes a MEMS accelerometer for a horizontal three-axis, tilt compensated precision compass for performance up to a 60° tilt range.