Compass Sensor Module

Description

A 3-axis digital compass for low-field magnetic sensing. It utilizes the Honeywell HMC5883L state-of-the-art high resolution magneto-resistive sensors, an ASIC containing amplification, automatic degaussing strap drivers, offset cancellation, and a 12-bit ADC that enables a compass heading accuracy to within 1-2 degrees. The module uses the I2C interface for data communication. The I2C lines are packaged with the power and ground lines into a modular connector, which allows easy plug and play operation. There are two connectors on the module to enable daisy chaining of multiple I2C devices together. The Compass Sensor Module is ideal for applications that require the measurement of both the direction and the magnitude of Earth’s magnetic field, from 2 milligauss to 8 gauss.

Details and Specifications

• I2C Addresses (7-bit): 0x1E.
• Form Factor:23 mm x 36 mm.
• Power Consumption: 0.5 mW.
• Connector Pin Definition: Pin 1: Power, Pin 2: I2C Data, Pin 3: Ground, Pin 4: I2C Clock Plug and play with I2C Expansion Shield 12-Bit ADC with 2 milligauss field resolution in +/- 8 gauss field to enable 1-2 degree compass heading accuracy.
• Fast 160 Hz maximum output rate.
• Low power consumption.
• Supports I2C interfacing with 7-bit address of 0x1E.
• Provides pass-through connector to support daisy chaining of multiple sensors from the sensor.
• Module family Provides 0.1” breakout points for power and IeC interface pins access.