1. Introduction
The RUSHFPV M10 GPS GNSS Micro and Mini modules are compact, high-performance navigation solutions designed for FPV (First Person View) drones and other remote-controlled vehicles. Featuring the new u-Blox M10 engine, these modules support multiple global navigation satellite systems (GPS, BDS, GLONASS, GALILEO) simultaneously, ensuring reliable and accurate positioning. They offer a fast refresh rate of up to 10Hz and include a built-in backup battery for quick hot starts. The ceramic antenna is designed for durability with an anti-fouling coating and sealed circuitry.
2. Setup and Installation
2.1 Physical Installation
- Ensure the ceramic antenna is unobstructed and positioned away from metal and carbon fiber components to optimize signal reception.
- For best reception, mount the GNSS antenna in a clear space, ideally using a bracket, and as far away as possible from Video Transmitter (VTX) and Radio Control (R/C) receiver antennas to minimize interference.
- Handle the antenna with care; it is fragile and should not be hit or dropped.
2.2 Wiring Instructions
When connecting the GNSS module to your flight controller (FC), ensure the following connections:
- Connect the RX (Receive) pin of the GNSS module to the TX (Transmit) pin of the flight controller.
- Connect the TX (Transmit) pin of the GNSS module to the RX (Receive) pin of the flight controller.
- The module requires a 5V DC input for power, drawing approximately 30mA.
- For models equipped with an integrated compass (e.g., RUSHFPV GNSS 25+), connect the SCL (Serial Clock) and SDA (Serial Data) pins to the I2C interface of your flight controller. Refer to your specific module's diagram for pin identification.
3. Operation
Once correctly installed and powered, the RUSHFPV M10 GPS GNSS module will begin acquiring satellite signals. The module's status can be monitored via its indicator lights (Ready Light and Power Indicator Light, as shown in the schematic). The module outputs data using the UBX/NMEA protocol at a baud rate of 115200dps, with a configurable refresh rate from 1Hz to 10Hz.
3.1 Satellite Acquisition
The module supports simultaneous reception from GPS, GLONASS, BDS, and GALILEO systems, along with SBAS and QZSS. Initial satellite acquisition (cold start) may take longer, but subsequent starts (hot starts) are significantly faster due to the built-in backup battery and memory.
3.2 Performance Characteristics
- Receiving Sensitivity: -162dBm
- Speed Accuracy: 0.05m/s
- Positioning Accuracy: 2D ACC 1.5m
- Maximum Working Height: 50,000m (Micro), 500,000m (Mini)
- Maximum Movement Speed: 500m/s
4. Maintenance
- Keep the module clean and free from dust and debris.
- Avoid exposing the module to extreme temperatures or moisture.
- The ceramic antenna is delicate; avoid physical impact or dropping the module.
- Note that any engraving marks on the ceramic antenna are a result of manual fine-tuning for optimal performance and are not product defects.
5. Troubleshooting
- No Satellite Lock: Ensure the ceramic antenna has a clear view of the sky and is not obstructed by metal, carbon fiber, or other electronic components (VTX, R/C receiver). Verify proper power supply (5V).
- Incorrect Positioning Data: Check all wiring connections between the GNSS module and the flight controller (RX to TX, TX to RX). Confirm the correct baud rate (115200dps) and protocol (UBX/NMEA) are configured in your flight controller software.
- Compass Malfunction (if applicable): If your module has a compass and it's not functioning, ensure the SCL/SDA pins are correctly connected to the I2C interface of your flight controller. Check for magnetic interference from nearby power wires or motors.
- Module Not Powering On: Verify the 5V power input and ensure the module is drawing approximately 30mA. Check for any visible damage to the module or wiring.
6. Specifications
| Feature | RUSHFPV GNSS Micro | RUSHFPV GNSS Mini |
|---|---|---|
| Receiving Bands | GPSL1, GLONASSL1, BDS B1, GALILEOE1, SBAS L1, QZSS L1 | GPSL1, GLONASSL1, BDS B1, GALILEOE1, SBAS L1, QZSS L1 |
| Receive Channel | 72 CH | 72 CH |
| Receiving Sensitivity | -162dBm | -162dBm |
| Output Protocol | UBX/NMEA | UBX/NMEA |
| Baud Rate | 115200dps | 115200dps |
| Output Refresh Rate | 1Hz-10Hz | 1Hz-10Hz |
| Power Input | 5V 30mA | 5V 30mA |
| Speed Accuracy | 0.05m/s | 0.05m/s |
| Positioning Accuracy | 2D ACC 1.5m | 2D ACC 1.5m |
| Maximum Working Height | 50,000m | 500,000m |
| Maximum Movement Speed | 500m/s | 500m/s |
| Dimensions | 12mm x 15mm x 4.8mm | 18mm x 18mm x 4.8mm |
| Weight | 2.4g | 4.2g |
| Integrated Compass | No | No |
| Material | Metal | Metal |
| Recommended Age | 14+ years | 14+ years |
Note: Specifications are subject to change without prior notice. Some RUSHFPV M10 variants, such as the GNSS 25+, may include an integrated HMC5883 compass.
7. User Tips
- Optimal Placement: Always prioritize mounting the GPS module in a location with the clearest possible view of the sky, away from any potential sources of electromagnetic interference (EMI) like motors, ESCs, VTX, and receiver antennas.
- Secure Mounting: Use a secure mounting method, such as a dedicated bracket, to prevent vibrations or physical damage during flight.
- Compass Calibration: If your module includes a compass, ensure it is properly calibrated according to your flight controller's instructions after installation and whenever you change its orientation or location significantly.
- Initial Lock Time: Be patient during the first power-up or after a long period of inactivity, as the module may take a few minutes to achieve a full satellite lock. Subsequent locks will be much faster.
8. Warranty and Support
For warranty claims, technical support, or further assistance, please contact your original point of purchase or the RUSHFPV official support channels. Keep your purchase receipt as proof of purchase.