The Boardoza GP-02 is a high-performance satellite navigation breakout board featuring the GP-02 SOC, which supports multi-mode positioning systems including BeiDou (BDS), GPS, and GLONASS. It is designed to provide accurate and reliable geolocation data, even in challenging signal environments, making it ideal for applications such as automotive navigation, asset tracking, and outdoor robotics.
This module offers TTL-level UART communication, making it easy to interface with microcontrollers, and features low power consumption, making it highly suitable for battery-powered systems. Its compact design and integrated RF front-end simplify integration in space-constrained projects.
| Front Side | Back Side |
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- Multi-Mode Satellite Support: Simultaneous support for BeiDou, GPS, and GLONASS systems ensures broad global coverage and enhanced positioning accuracy.
- Integrated RF Front-End: Compact SOC design includes signal processing and antenna interface for superior reception in a small footprint.
- Low Power Design: Operates efficiently from 3.3V or 5V sources; ideal for portable devices.
- Simple TTL UART Communication: Easily integrates with microcontrollers for real-time geolocation data exchange.
- Mode Selection via Jumper Pins: Configure BDS+GPS or GPS+GLONASS modes via J4 jumper configuration.
Model: Ai Thinker GP-02
Voltage Input Type: 4-pin 2.50mm header
Input Voltage: 5V or 1S Li-Ion Battery (3.3V)
Functions: BDS/GNSS Multi-Mode Navigation Receiver SOC
Communication Interface: UART (TTL Level)
Connector Voltage Level: 3.3V (J3, J4)
Operating Temperature: -40°C ~ +85°C
Board Dimensions: 20mm x 40mm
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | VCC | Power Supply |
| 2 | RX | Received Data Pin |
| 3 | TX | Transmitted Data Pin |
| 4 | GND | Ground |
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | PPS | Time pulse signal output |
| 2 | N/F | Shutdown control (active LOW, internal pull-up) |
| 3 | RST | External reset input (leave unconnected) |
| Pin Combination | Mode | Description |
|---|---|---|
| 1–2 | BDS + GPS | Jumper connects IO to HIGH (via VCC) |
| 2–3 | GPS + GLONASS | Jumper connects IO to GND (LOW state) |
Note: J4 is a clever use of hardware jumper to select GNSS mode. When middle pin floats (no jumper), the module defaults to BDS + GPS.
For optimal satellite reception and stable positioning performance, it is strongly recommended to use a properly tuned active GNSS antenna compatible with the L1 band.
Since the GP-02 supports GPS (1575.42 MHz L1), BeiDou B1 (1561.098 MHz), and GLONASS L1 (~1602 MHz), the antenna must cover the 1559–1606 MHz frequency range to ensure reliable multi-constellation tracking.
An active antenna with an integrated Low Noise Amplifier (LNA) significantly improves signal acquisition time, enhances positioning accuracy, and maintains stable performance in weak-signal environments such as urban areas, dense foliage, or partially obstructed outdoor spaces.
Using a properly matched antenna also reduces signal loss and improves receiver sensitivity.
Recommended Antenna: Active GNSS L1 Antenna (GPS / BDS / GLONASS) 3V–5V with SMA Connector
Key Antenna Characteristics:
- Frequency Range: 1559–1606 MHz (L1 Band)
- Center Frequencies: 1.559 / 1.575 / 1.602 GHz
- Gain: 2.13 dBi (1561 MHz), 2.11 dBi (1575 MHz), 2.91 dBi (1602 MHz)
- GNSS Support: GPS, BeiDou, GLONASS, GALILEO
- Type: Active patch antenna with integrated LNA
- Operating Voltage: 3V–5V (bias powered)
- Connector Type: IPEX MHF1
- Impedance: 50Ω
Important: Always connect the antenna before powering the module. Operating the GNSS receiver without a connected antenna may degrade RF performance and potentially damage the RF front-end.
- V1.0.0 - Initial Release
- If you have any questions or need support, please contact support@boardoza.com
Shield:
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