This is a 4G/3G/2G Raspberry Pi communication HAT with GNSS positioning and high-speed LTE CAT4 global band connection. By connecting it to a PC, Raspberry Pi, or Jetson Nano host board, it is easy to enable 4G high-speed networking, cloud platform communication, phone call/SMS, and global GNSS positioning functions.

Features:

1. Supports dial-up, phone calls, SMS, TCP, UDP, MQTT, HTTP(S), FTP(S), and so on
2. GNSS positioning: GPS, Beidou, Glonass, Galileo, QZSS, LBS base station
3. USB 3.1 port (USB 2.0 compatible) for connecting to PC, Raspberry Pi, or Jetson Nano host board to enable high-speed 4G communication
4. Onboard UART, PWR, and RST control pin, built-in voltage level translator, enabled via DIP switch, for use with hosts like Raspberry Pi or Arduino
5. The onboard USB-C connector, enabled via a switch, for connecting the standalone power supply for the module, allows more loads, a stable and flexible power supply
6. Onboard power supply on/off switch, reset button, and LED indicator, easy to turn on/off the module or monitor the operating status
7. Reserved 4x SMA to IPEX antenna interfaces, with pre-soldered 2x connectors for easily using antennas, allows changing the SMA antenna position
8. Onboard audio jack and audio decoder, allow audio operation like making a phone call
9. High-efficiency power supply circuit, up to 3A output current