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COMPASS MAGNETOMETER SENSOR
General Description:
HMC5883L 3-axis Electronic Compass Module Magnetic Field Sensor - The Original Chip is designed for low-field magnetic sensing with a digital interface and it is perfect for giving precise heading information. The sensor converts any magnetic field to a differential voltage output on 3 axes. This voltage shift is the raw digital output value, which can then be used to calculate headings or sense magnetic fields coming from different directions.
Working Principle:
The HMC5883L module operates on the principle of magneto-resistive sensing. Its three-axis sensor detects changes in the surrounding magnetic field, converting them into digital signals through analog-to-digital conversion. These signals, representing magnetic field strength along the X, Y, and Z axes, are outputted via I2C or SPI communication. With calibration and processing, the module provides accurate measurements for various applications like compasses and navigation systems.
Specifications:
1. Operating Voltage: 3 -5 V DC.
2. Standard current supply is100 mA.
3. Driver Chip IC we used HMC5883L.
4. Measuring range: ± 1.3-8 Gauss.
5. 3-axis magnetic electronic compass.
6. Operating Temperature: -40°C to +85°C.
7. Output Data Rate is up to 160Hz.
8. Barometer: 300hPa to 1110hPa.
Requirements
| S. No. | Component Name | Values |
|---|---|---|
| 1 | HMC5883L (x, y, z axis magnetometers sensor) | |
| 2 | Resistors | 4.7k(4) |
| 3 | Capacitors | 10u, 0.1u(2), 224,475 |
| 4 | Male connectors | 5 |
| 5 | 662K (Transistor) |
Pin configuration:
| S. No. | Pins | Pin Description |
|---|---|---|
| 1 | VCC | Input voltage 3-5v |
| 2 | GND | Ground |
| 3 | SCL | Serial Clock |
| 4 | SDA | Serial Data |
| 5 | DRDY | Data Ready, Interrupt Pin |
Pin Diagrams:
Applications:
1. Utilized for navigation purposes in vehicles, ships, aircraft, and smartphones.
2. Orientation Tracking such as tilt-compensated compasses, allowing accurate tracking.
3. Robotics systems for navigation, mapping, and localization tasks.
4. Weather Monitoring system etc.
For more info: Refer the Datasheets!
DATASHEET_HMC5883L_3-Axis_Digital
LDO 3.3V