Ai-Thinker GP-01 AT6558R GNSS GPS BeiDou Module

The Ai-Thinker GP-01 is a compact GNSS positioning module built around the AT6558R receiver platform. It integrates the RF front end, digital baseband processor, 32-bit RISC CPU, power management, and active antenna detection / protection functions in a small SMD module for embedded navigation hardware.

According to the official GP-01 specification, the module supports BDS, GPS, and GLONASS multi-system positioning. It also provides UART communication, PPS timing output, RTC backup input, active antenna support through VRF, and selectable GNSS operating modes through the IO8 configuration pin.

For related OpenELAB positioning products, compare the Ai-Thinker GP-02 GPS/BDS/GNSS Module, Ai-Thinker GP-02-Kit GPS/BDS/GNSS Development Board, M5Stack Mini GPS/BDS Unit, Holybro GPS M10N, and Mateksys GNSS M10Q-5883.

Technical Specifications

Integration Notes & Hardware Guidance

• Power Supply – Use a clean 3.3V rail where possible and reserve more than 30mA peak current for stable acquisition and tracking.
• Ripple Control – Prefer LDO power for low noise. If DC-DC power is used, keep ripple within 50mV and add dynamic response capacitance where needed.
• Antenna Layout – Route the RF path carefully, keep the antenna area away from metal parts and high-frequency components, and validate antenna performance in the final enclosure.
• Active Antenna Design – Use the VRF pin only according to the active antenna power, detection, and short-circuit protection requirements of the final circuit.
• Mode Selection – Review IO8 before production because high level or floating selects BDS + GPS, while low level selects GPS + GLONASS.
• Reset and Shutdown – Leave RST floating when unused, and keep N/F at high level during normal operation according to the official pin description.
• UART Level – The module uses 3.3V IO levels. Add level conversion when the host controller uses a different logic voltage.
• Signal Protection – Add 10 ohm to 100 ohm series resistors where appropriate and reserve ESD protection near exposed connectors.
• Timing Output – Use PPS when precise timing synchronization is required, and validate timing accuracy after antenna and enclosure integration.

Packing List

• 1 x Ai-Thinker GP-01 GNSS AT6558R GPS BeiDou Positioning Module

FAQ

Q: Which GNSS systems does GP-01 support?
A: The official GP-01 specification lists BDS, GPS, and GLONASS support for multi-system positioning.

Q: What chip platform does GP-01 use?
A: It is based on the AT6558R GNSS receiver platform and integrates RF front-end, baseband processing, CPU, power management, and antenna protection functions.

Q: What supply voltage should I use?
A: The official range is 2.7V to 3.6V, with 3.3V typical. A clean 3.3V supply is recommended for embedded hardware designs.

Q: What communication interface does it provide?
A: GP-01 provides UART communication, with serial port rate support up to 256000bps according to the official specification.

Q: Does GP-01 provide PPS output?
A: Yes. Pin 3 is PPS, which provides a time pulse signal for timing-related designs.

Q: Does the module support an active antenna?
A: Yes. The VRF pin is listed for active antenna power supply and detection, with short-circuit protection current specified in the official electrical table.

Q: What is the difference between the IO8 modes?
A: IO8 high level or floating selects BDS + GPS, while IO8 low level selects GPS + GLONASS.