Description

This module comes with Honeywell HMC5883L surface-mount, multi-chip module designed for low-field magnetic sensing with a digital interface for applications such as low cost compassing and magnetometry. The chip includes high-resolution HMC118X series magneto-resistive sensors plus an ASIC containing amplification, automatic degaussing strap drivers, offset cancellation, and a 12-bit ADC that enables 1? to 2? compass heading accuracy.

This module uses I2C serial bus for easy interface with controller such as Arduino. HMC5883L chip utilizes Honeywell?s Anisotropic Magnetoresistive (AMR) technology that provides advantages over other magnetic sensor technologies. These sensors? solid-state construction with very low cross-axis sensitivity is designed to measure both the direction and the magnitude of Earth?s magnetic fields, from milli-gauss to 8 gauss.

Features

• Operating voltage : 2.16 – 3.6V (Use 3.3V only)
• Low Power Consumption : 100 ?A
• 3-Axis Magneto resistive Sensors and ASIC in a 3.0×3.0x0.9mm LCC Surface Mount Package
• 12-Bit ADC Coupled with Low Noise AMR Sensors Achieves 2 milli-gauss Field Resolution in ?8 Gauss Fields
• I2C Digital Interface
• Wide Magnetic Field Range (+/-8 Oe)
• Fast 160 Hz Maximum Output Rate
• Enables 1? to 2? Compass Heading Accuracy

 

Wiring

Label	Meaning	Connection
VCC	Power source	Connect to 3.3V power source
GND	Ground	Connect to GND of system
SCL	I2C Serial Clock	Connect to SCL pin
SDA	I2C Serial Data	Connect to SDA pin
DRDY	Data Ready	No connection

 

Files & Documentation

• Example code – eProLabs
• Arduino library file – Github
• Datasheet – HMC5883L
• Example code – Easy Arduino?