HMR3200/HMR3300 are Honeywell's electronic compass solution modules for navigation and guidance systems. With three-axis magnetic field measurement, and using two-axis accelerometers as inclination compensation, the inclination measurement range can reach ± 60˚. HMR3200 is a two-axis magnetoresistive module optimized for vertical and horizontal performance.
This manual describes Honeywell's HMR3200 and HMR3300 electronic compass modules, which are compact solid‑state compasses designed for navigation and guidance systems. It covers the modules' features, mechanical dimensions, electrical characteristics, and how to integrate them via UART or SPI interfaces.
The document includes detailed pin configurations, command sets for direction and magnetic field output, demo kit information, and ordering details, helping developers implement accurate heading and tilt measurements in their applications. This manual is written in Chinese.
| Repeatability | 0.5° |
|---|---|
| Operating temperature range | -40°C to +85°C |
| Supply voltage | 6‑15 VDC |
| Update rate | 15 Hz |
| Module size | 25 mm × 37 mm × 10 mm |
| Communication interfaces | UART (ASCII) and SPI |
| UART baud rate | 19200 bps |
| Tilt measurement range (HMR3300) | ±60° |
The modules support both UART (ASCII format) and SPI interfaces.
The HMR3300 can measure tilt up to ±60° in pitch and roll.
They operate from a single supply of 6 V to 15 V DC.
The modules provide data at a rate of 15 Hz.