The module includes a state-of-the-art, high-resolution HMC118X series magneto-resistive sensor, plus an ASIC containing amplification, automatic degaussing strap drivers, offset cancellation, and a 12-bit ADC that enables 1° to 2° compass heading accuracy. The I2C serial bus allows for easy interface.The GY-273 module is based on the Honeywell HMC5883L IC for low-field magnetic sensing with a digital interface for applications such as lowcost compassing and magnetometry. The HMC5883L includes state-of-theart, 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. The I2C serial bus allows for easy interface.
Features of HMC5883L
(1)The Honeywell HMC5883L is a surface-mount, multi-chip module designed for low-field magnetic sensing with a digital interface for applications such as low cost compassing and magnetometry
(2)The 12-Bit ADC coupled with low noise AMR sensors achieves 5 milli-gauss field resolution in ±8 gauss fields
(3)Low voltage operations and low power consumption; supports built-in self-test
(4)Built-in strap drive circuits, I2C digital interface, wide magnetic field range (+/-8 oe)
(5)Working voltage: 3.3v-5v; PCB size: 1.3 x 2.3 cm (HMC5883L size: 3.0 x 3.0 x 0.9 mm), with a16-pin leadless chip carrier (LCC)
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