Standard Pi 40PIN GPIO extension header, fits Raspberry Pi series boards
Supports communication protocols such as TCP/UDP/HTTP/HTTPS/TLS/DTLS/PING/LWM2M/COAP/MQTT
Supports GNSS positioning (GPS, GLONASS, BeiDou, and Galileo)
Onboard USB interface, to test AT Commands, get GPS positioning data, and so on
Onboard voltage translator, 3.3V by default, allows to be switched to 5V via onboard jumper
Common baudrate auto-negotiation: 9600/19200/38400/57600/115200 bps
Breakout UART control pins, to connect with host boards like Arduino/STM32
SIM card slot, supports ONLY 1.8V SIM card (3V SIM card is not available)
3x LED indicators, easy to monitor the working status
Baudrate: 300~3686400 bps