A
Anonymous
Mar 31, 2026
Rating: 4/5
Compact size
Fits easily into small enclosures. Sensitive to metal interference as expected for magnetometers.
Description
GY-271 Electronic Compass Module – 22 Years of Component Expertise
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Chip Model | QMC5883P / HMC5883L |
| Operating Voltage | 3.3V - 5V DC |
| Communication Interface | I2C (Inter-Integrated Circuit) |
| Operating Current | 100uA (Typical) |
| Measurement Range | +/- 8 Gauss |
| PCB Dimensions | 15mm x 12mm |
| Operating Temperature | -40°C to 85°C |
| Module Weight | 2g |
| Pin Configuration | 4-Pin Header (VCC, GND, SCL, SDA) |
| Microcontroller Compatibility | Arduino, Raspberry Pi, STM32 |
5 reviews
A
Anonymous
Mar 20, 2026
Rating: 5/5
Great for robotics
Works perfectly with my Arduino Uno. Calibration sketch was easy to find and implement.
A
Anonymous
Mar 08, 2026
Rating: 4/5
Good sensor
Needs some calibration but accurate once set up. Fast shipping and well packaged.
A
Anonymous
Feb 11, 2026
Rating: 5/5
Reliable I2C
No communication errors encountered during testing. Stable readings over long periods.
A
Anonymous
Jan 19, 2026
Rating: 5/5
Excellent value
Cheaper than competitors and works just as well. Highly recommend for hobby projects.
5 FAQ
Q: Is code available?
A: Yes, many open-source libraries exist for Arduino and Python Raspberry Pi.
Q: Is calibration required?
A: Yes, we recommend calibrating for your specific environment for best accuracy.
Q: Does this work with 5V logic?
A: Yes, the module supports both 3.3V and 5V operation safely.
Q: Can it measure strength?
A: Yes, it provides raw magnetic field strength data on X, Y, Z axes.
Q: What is the update rate?
A: The sensor supports up to 200Hz data output rate depending on configuration.
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