1. Introduction
The HGLRC M100 Pro GPS module with QMC5883L Compass is a high-performance navigation unit designed for FPV (First-Person View), fixed-wing aircraft, and various Unmanned Aerial Vehicle (UAV) applications. It incorporates an upgraded 10th generation chip and a QMC5883L compass to provide accurate and reliable positioning data. This manual provides essential information for the proper setup, operation, and maintenance of your M100 Pro GPS module.
The HGLRC M100 Pro GPS module, a compact unit for precise navigation.
2. Key Features
- 10th Generation Chip: Utilizes an advanced B101 chip for enhanced performance and faster satellite acquisition.
- QMC5883L Compass: Integrated compass for accurate heading information.
- Expanded Receiving Channel: Supports 120 channels for improved satellite signal reception.
- Fast Satellite Lock: Achieves quick satellite fixes, often locking onto over 50 satellites.
- Compact Design: Small and lightweight, suitable for various drone builds.
Illustration highlighting the advanced 10th generation B101 chip for powerful performance.
An FPV screen capture demonstrating the module's ability to lock onto over 50 satellites for enhanced accuracy.
3. Setup and Installation
3.1 Wiring Diagram
Connect the HGLRC M100 Pro GPS module to your flight controller using the provided cable. Ensure correct pin alignment for GND, 5V, RX, TX, SCL, and SDA. Refer to the diagram below for detailed connections.
Detailed wiring diagram showing connections between the M100 Pro GPS module and a flight controller, indicating GND, 5V, RX, TX, SCL, and SDA pins.
3.2 Mounting
Mount the GPS module in a location with a clear view of the sky, away from potential sources of electromagnetic interference such as video transmitters (VTX) or receiver antennas. This helps ensure optimal satellite signal reception and compass accuracy.
3.3 Initial Configuration
After physical installation, connect your flight controller to its configuration software (e.g., Betaflight, iNav). You will need to:
- Enable GPS and select the correct UART port.
- Configure the GPS protocol (typically UBLOX or NMEA).
- Enable the magnetometer (compass) and select the correct I2C address and orientation. Calibration of the compass is crucial for accurate heading.
4. Operating Instructions
4.1 GPS Fix Acquisition
Upon powering on your aircraft, the GPS module will begin searching for satellites. A 'fix' is achieved when enough satellites are locked to provide accurate position data. This module is designed for fast acquisition, often achieving a lock within minutes under clear sky conditions.
4.2 LED Indicators
The HGLRC M100 Pro GPS module features onboard LED indicators to communicate its status:
Table explaining the behavior of the PPS (blue) and Power (red) LED indicators for normal operation and position accuracy.
- Power (Red LED): Indicates the module is receiving power. It should be continuously bright.
- PPS (Blue LED): Indicates GPS position accuracy. It will flicker when a real position fix is achieved.
5. Maintenance
To ensure the longevity and optimal performance of your HGLRC M100 Pro GPS module:
- Keep the module clean and free from dust and debris.
- Avoid exposing the module to extreme temperatures or moisture.
- Regularly check wiring connections for secure fit and any signs of damage.
- Ensure the module is securely mounted to prevent vibrations from affecting performance.
6. Troubleshooting
- Slow GPS Fix / No Fix:
- Ensure the module has a clear, unobstructed view of the sky.
- Verify that the module is mounted away from other electronic components that may cause interference (e.g., VTX, high-current wires).
- Check wiring connections for continuity and correct pin assignment.
- Confirm flight controller software settings for GPS are correct.
- Inaccurate Compass Readings:
- Perform a compass calibration in your flight controller software.
- Ensure the module is mounted as far as possible from power wires, motors, and ESCs to minimize magnetic interference.
- Verify the compass orientation setting in the flight controller software matches the physical orientation of the module.
- Connector Issues:
- Handle connectors with care during installation and removal to prevent damage.
- Ensure the connector is fully seated and locked into place.
7. Specifications
Detailed technical specifications for the M100 Pro GPS module, including chip type, antenna, frequency, and dimensions.
| Feature | Detail |
|---|---|
| Chip | B101 (10th generation chip) |
| Antenna | Ceramic antenna |
| Frequency | GPS L1, GLONASS G1, BDS B1, GALILEO E1, QZSS L1, IRNSS |
| Baud Rate | 115200 |
| Output Frequency | 10Hz |
| Power Input | 3.3-5.5V |
| Size | 21.2 x 21.2 x 8.2 mm |
| Weight | 7.9 g (0.317 ounces) |
| Color | Black |
| Manufacturer | HGLRC |
| Item Model Number | M100 Pro GPS |
Physical dimensions and weight comparison of the HGLRC M100 Pro GPS module.
8. Warranty and Support
8.1 Warranty Information
This product is covered by a manufacturer's warranty against defects in materials and workmanship. Please retain your proof of purchase for any warranty claims. Specific warranty terms and duration may vary by region and retailer. For detailed warranty information, please refer to the official HGLRC website or contact your point of purchase.
8.2 Technical Support
For technical assistance, troubleshooting, or any questions regarding the HGLRC M100 Pro GPS module, please contact HGLRC customer support. We are the original HGLRC manufacturer and are committed to assisting you within 24 hours. You can find contact information on the official HGLRC website or through your retailer.
