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The Ai-Thinker GP-02 Kit is a development board built around the AT6558R satellite positioning chip. The chip combines an RF front end, a digital baseband processor, a 32-bit RISC CPU and power management, and the board adds a ceramic antenna and a high-performance BDS/GNSS multi-mode receiver.
It communicates by serial connection using the NMEA protocol, which makes it simple to read position data with a microcontroller, a single-board computer or a serial terminal.
The board runs from 5 V and its UART supports rates up to 256000 bps. Operating temperature is -40 to 85 C and it can be stored between -40 and 125 C at less than 90 percent humidity. It is RoHS certified and compact enough to embed in a project.
For a first test, connect power, ground, TX and RX to a USB-serial adapter and open a terminal at the default baud rate to watch the NMEA sentences. Place the board outdoors or beside a window with the ceramic antenna facing the sky, and allow a few minutes for the first fix.
Learners and prototype builders who want a simple, low-cost GPS/BDS board with a built-in antenna.
Connect 5 V and ground, wire TX from the board to your host's RX and vice versa, and open a serial terminal. You should see NMEA sentences within seconds, although the first fix outdoors can take a minute or more. If you see no data, check the baud rate and swap TX and RX. Keep the ceramic antenna facing up and away from metal shields.
The AT6558R.
5 V.
256000 bps.
NMEA.
Yes, a ceramic antenna is integrated.
| Brand | Ai-Thinker |
|---|---|
| Baud Rate | up to 256000 |
| Chipset | AT6558R |
| GNSS Constellations | BDS + GNSS + GPS |
| Operating Temperature | -40 to 85 C |
| Operating Voltage | 5V |
| Supported Protocols | NMEA |
| Selling unit | PCS |
