HMR3200/HMR3300 are Honeywell's electronic compass solution modules for navigation and guidance systems. HMR3200/HMR3300 has three-axis magnetic field measurement, and adopts two-axis accelerometer as tilt compensation, so that the tilt measurement range reaches ±60 °. HMR3200 is a two-axis magnetoresistive module with optimized performance in vertical and horizontal directions.
The manual provides an overview of the Honeywell HMR3200 and HMR3300 digital compass modules, describing their compact size, low weight, and ability to compensate for hard‑magnetic and ferrous interference. It outlines the operating temperature range, supply voltage, and response speed, making the modules suitable for navigation and guidance systems.
Detailed sections cover the UART and SPI communication interfaces, pin assignments, command formats for heading and magnetic field output, and the included demo PCB kits with Windows software. Electrical characteristics, mechanical dimensions, and environmental limits are listed for easy integration into host systems. This manual is written in Chinese.
| Repeatability | 0.5° |
|---|---|
| Tilt‑angle range | ±60° |
| Response speed | 15 Hz |
| Operating temperature | -40 °C to +85 °C |
| Supply voltage | 6 VDC to 15 VDC |
| Size | 25 mm × 37 mm × 10 mm |
| Weight | 7.25 g (HMR3200), 7.5 g (HMR3300) |
| Magnetic field range | ±2 Gauss |
They operate from a single 6 VDC to 15 VDC power source.