3 Axis Digital Compass ( HMC5883L) GY-271

Overview

The GY-271 is a compact 3-axis digital compass module built around the Honeywell HMC5883L magnetometer. This sensor measures the Earth's magnetic field to determine heading angles relative to magnetic north, making it essential for navigation, orientation, and robotics projects. With its simple I2C interface and low power consumption, it is ideal for hobbyists and engineers alike.

Key Features

• High-resolution 3-axis magnetometer (5 milli-gauss resolution)
• Wide supply voltage range (2.16–3.6VDC)
• Simple I2C interface for easy integration
• Low power consumption for battery-powered projects
• Breakout board with onboard voltage regulator and pull-up resistors
• Compact size suitable for embedded systems

Technical Specifications

• Sensor: Honeywell HMC5883L
• Measurement Range: ±8 gauss
• Resolution: 5 milli-gauss
• Supply Voltage: 2.16–3.6VDC
• Interface: I2C (address 0x1E)
• Operating Temperature: -30°C to +85°C
• Dimensions: 14mm x 13mm x 2mm (approx.)

Applications & Use Cases

• Robotics navigation and orientation
• Drone flight controllers and autopilot systems
• Compass and heading indicators
• GPS navigation systems (dead reckoning)
• Augmented reality and tilt-compensated compass applications
• Educational projects in electronics and embedded systems

What's Included

• 1x GY-271 3-Axis Digital Compass Module (HMC5883L)

Compatibility

• Works with Arduino, Raspberry Pi, ESP32, STM32, and other microcontrollers with I2C support
• Compatible with popular libraries such as Adafruit HMC5883L and MPU6050 (via I2C)

MOKWN Recommendation

For Egyptian makers and engineers, the GY-271 is a reliable and affordable solution for adding compass functionality to your projects. Whether you're building a robot, a drone, or a navigation system, this module offers accurate heading data with minimal power consumption. Pair it with a GPS module for enhanced navigation capabilities. Order now from MOKWN and get fast delivery across Egypt!