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GY-273 Magneto HMC5883L
HMC5883L three-axis compass sensor board
GY-273 digital magnetometer module
GY-273 compass sensor pin view
HMC5883L magnetometer for Arduino projects
HMC5883L three-axis compass sensor board
GY-273 digital magnetometer module
GY-273 compass sensor pin view
HMC5883L magnetometer for Arduino projects
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GY-273 Magneto HMC5883L

  1. Supply Voltage VCC: 3.3 to 6 V
  2. Heading Accuracy: 1 to 2
  3. Magnetic Field Range: -8 to +8 Gauss
  4. I2C Address: 0x1E (7-bit address)
  5. Max Data Rate: 160 Hz
  6. Digital Voltage Level: 3.3V
  7. Dimensions (excluding pins): 18.2mm (0.717) x 13.3mm (0.524) x 2.2mm (0.087)
  8. Weight: 0.95g (0.034oz)

₨ 599 ₨ 780

GY-273 HMC5883L Magnetometer Price in Pakistan

The GY-273 is sold as a three-axis digital magnetometer module for compass, navigation and magnetic-field experiments. It communicates through I2C and can provide magnetic measurements on the X, Y and Z axes after suitable calibration.

Important chip-verification note

GY-273 boards can be supplied with different chip markings or a QMC5883-family replacement. Verify the IC printed on the received module before selecting an I2C address, library or example code. Values below refer to the listed HMC5883L version.

Listed specifications

  • Supply voltage: 3.3V to 6V
  • Digital logic level: 3.3V
  • I2C interface
  • Listed HMC5883L address: 0x1E
  • Listed magnetic-field range: approximately ±8 gauss
  • Listed maximum data rate: 160Hz
  • Approximate board dimensions excluding pins: 18.2 × 13.3 × 2.2mm

Applications

  • Digital compass experiments
  • Robot and UAV heading projects
  • Navigation prototypes
  • Three-axis magnetic-field measurement

Calibration guidance

Motors, steel fasteners, magnets and current-carrying wires can distort readings. Mount the sensor away from magnetic interference and perform hard-iron and soft-iron calibration in the completed project.

For controller testing, see the Arduino UNO R3 with cable. Explore more motion and magnetometer sensors from Robonation Pakistan.

For the listed chip, review the HMC5883L technical datasheet.

Frequently Asked Questions

What does the GY-273 magnetometer measure?

It measures magnetic field on three axes and can be used as a digital compass after calibration.

Which communication interface does the GY-273 use?

GY-273 compass modules normally communicate over I2C.

Why should the chip marking be checked before choosing a library?

Some GY-273 boards use a QMC5883-family replacement instead of the HMC5883L. The I2C address and library can differ, so verify the received IC.

Does a GY-273 compass module require calibration?

Yes. Calibrate the module in the completed installation to compensate for nearby magnetic materials and project-specific hard-iron or soft-iron distortion.

What can interfere with magnetometer readings?

Motors, magnets, steel hardware, speakers and high-current wiring can distort the measured magnetic field. Mount the sensor away from these sources where practical.

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