MicoAir MG-A01 GNSS Module

Introduction

• MG-A01(M10 Ultra) GNSS module integrates a special version of u-blox 10th generation receiver chip – M10050, which runs with higher frequency than normal, and the magnetic sensor – QMC5883L. It supports all L1 GNSS signals (GPS/GLONASS/Galileo/BeiDou) and can use up to 32 satellites simultaneously for navigation.
• The high-gain 25 x 25 x 4mm patch antenna provides the best performance.
• Built-in flash, parameters can still be saved when the module loses power.

Why M10 Ultra

As we all know, M10 is the latest generation of GNSS receivers, with higher startup speed, positioning accuracy, and more satellites. But at the same time, M10 (5Hz) sacrifices the navigation update rate compared to M8 (10Hz) and M9 (25Hz). To solve this problem, we integrated an Ultra version of the M10 chip into MG-A01, which runs with a higher frequency, making it possible to achieve a 10Hz navigation update rate while using 32 satellites.

In order to solve the problem of unstable navigation update rate of M10, the developer team of Ardupilot forcibly limited the number of satellites by turning off BeiDou B1L and GLONASS. In fact, they could choose to use the M10 Ultra without making any changes.

Specifications

• GNSS Receiver: U-BLOX M10 (M10050)
• Magnetic Compass: QMC5883L
• Antenna:  25x25x4mm
• GNSS System Support: GPS L1 /CA; GLONASS L10F; BeiDou B1L/B1C; Galileo E1B/C; QZSS L1 C/A/S; SBAS L1 C/A
• Concurrent: 3 (GPS/BeiDou/Galileo(default) or GPS/GLONASS/Galileo), when Beidou B1L is turned off, it becomes possible to use 4 satellite systems at the same time: GPS+BeiDou(B1C)+GLONASS+Galileo
• Max Navigation rate: 10Hz
• Max satellite num: 32

• Input Voltage: 5V
• Current: 30mA
• Output Interface(GPS): UART (3.3V LVTTL)
• Interface(Compass): I2C
• UART Baudrate: 115200(default)
• Output Protocol: UBX-PVT(default)
• PPS LED: Blue (Solid ON after powering on, blinking(1Hz) when GNSS get 3D fix)

Flight Controller Firmware Required

• INAV: >=5.0.0
• Betaflight: >=4.3.0
• Ardupilot: >=4.3.0
• PX4: >= 1.14.0

Physical

• Dimensions: 25 x 25 x 7.8 mm
• Weight: 12g
• Connector: SH1.0-6P 1.0mm pitch
• 3D-printed battery strap GPS mount

Links

• u-center
• u-center-2-user-guide
• u-blox-M10-SPG-5.10_InterfaceDescription