GY-273 HMC5883L 3 Axis Module Magnetic Field Sensor

The GY-273 HMC5883L 3 Axis Module is a magnetic field sensor board based on the HMC5883L 3-axis magnetometer. It measures the Earth's magnetic field on the X, Y and Z axes and sends the readings over I2C, so you can build a digital compass or detect magnets with an Arduino, ESP32 or Raspberry Pi. An on-board regulator lets it run from 3.3 V or 5 V systems.

GY-273 HMC5883L 3 Axis Module Specifications

• Sensor: HMC5883L 3-axis magnetometer with 12-bit ADC
• Measuring range: ±0.88 to ±8.1 gauss, selectable
• Compass heading accuracy: 1–2°
• Output rate: up to 75 Hz in continuous mode, up to 160 Hz in single measurement mode
• Interface: I2C, address 0x1E
• Supply voltage: 3–5 V (on-board regulator)
• Pins: VCC, GND, SCL, SDA, DRDY

GY-273 HMC5883L 3 Axis Module Applications

• Digital compass for robots, drones and rovers
• Heading sensing for navigation alongside GPS
• Detecting nearby magnets or iron and steel objects
• Vehicle and door detection projects
• Learning I2C sensors in class

What's in the Box

• 1 × GY-273 magnetometer module

Tip: Keep the module away from motors, speakers and steel parts, and calibrate it after mounting. Some GY-273 boards use the QMC5883L chip instead; if nothing answers at address 0x1E, run an I2C scanner and use a QMC5883L library.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.