GY-273 HMC5883L 3-Axis Digital Compass Magnetometer Sensor

HMC5883L 3-Axis Digital Compass The HMC5883L 3-Axis Digital Compass Magnetometer Sensor Module is a compact and versatile solution for precise magnetic field measurements along three axes. Ideal for navigation systems, robotics, and consumer electronics, this module delivers accurate heading information with a 1° to 2° accuracy. It features the HMC5883L IC from Honeywell, which uses Anisotropic Magnetoresistive (AMR) technology for high sensitivity and reliability. The module supports I2C communication, making it easy to integrate with microcontrollers such as Arduino. An on-board voltage regulator allows operation with supply voltages from 3.3V to 6V, and on-board pull-up resistors simplify I2C connections. Features : Triple-axis magnetometer for X, Y, Z magnetic field measurements Digital output via I2C interface On-board voltage regulator (3.3V to 6V input) On-board I2C pull-up resistors Data ready interrupt pin (DRDY) High accuracy: 1° to 2° heading accuracy 12-bit ADC for precise measurements Low power consumption Specifications : Parameter Value Supply Voltage 3.3V to 6V Interface I2C Resolution 12-bit ADC Maximum Output Rate 160 Hz Operating Temperature -30°C to +85°C Pin Configuration : Applications : Electronic compass for navigation systems Orientation detection in consumer electronics Robotics for precise navigation and positioning Drones for stabilization and heading control Magnetic field measurement in scientific experiments Package Include : 1 x GY-273 HMC5883L 3-Axis Digital Compass Magnetometer Sensor 1 x 5-pin DataSheet : HMC5883L DataSheet

GY-273 Triple-Axis Magnetometer Compass Module HMC5883L The HMC5883L is a triple-axis magnetometer compass, which uses I2C for communication. This Module consists of an on-board voltage regulator allowing you to power the module with voltages between 3.3V and 6V. Pinout: Pin Name Description VCC The Vcc pin powers the module, typically with +5V GND Power Supply Ground SCL Serial Clock Pin. Connect this pin to the SCL pin of Microcontroller. SDA Serial Data Pin. Connect this pin to the SDA pin of Microcontroller. DRDY Data Ready Pin Output. This pin is used to know that when data is ready to be read Features: Operating Voltage: 3V to 6V DC I2C interface 1-2 degree heading accuracy Integrated 12-bit ADC 160Hz max data rate Range of -8 to +8 Gauss Needs no external components Easy to use with Microcontrollers or even with normal Digital/Analog IC Small, cheap and easily available Applications: Auto and personal navigation. UAV systems. Robotic navigation. Location-based services (LBS). Package Includes: 1x GY-273 Compass Module Documents: Instructions Datasheet Related Products: SENSORS | MODULES

This 3 axis digital compass is based on Honeywell HMC5883L sensor .The magnetometer or digital compass sensor is used to measure the heading angle (angle from the north), This is done by measuring both the direction and the magnitude of Earth’s magnetic fields, from milli-gauss to 8 gauss. Communication with the HMC5883L is simple and all done through an I2C interface. Voltage of 2.16-3.6VDC should be supplied. Features Simple I2C interface 2.16-3.6VDC supply range Low current draw 5 milli-gauss resolution Dimensions : 17.78x17.78mm How to use compass with arduino? Connect the compass as shown in figure below Upload and run this arduino code, click here Note: for the code above, the connections MUST be : Arduino GND ---------> HMC5883L GND Arduino 3.3V ---------> HMC5883L VCC Arduino A4 (SDA) ---> HMC5883L SDA Arduino A5 (SCL) ---> HMC5883L SCL For another tutorial on how use triple axis digital compass, please click h ere Watch how to use video below