

Features
- Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards
- Supports TCP, UDP, PPP, HTTP, FTP, MQTT, SMS, Mail, etc.
- Supports GNSS positioning (GPS, BeiDou, GLONASS)
- Onboard USB interface, to test AT Commands, get GPS positioning data, and so on
- Breakout UART control pins, to connect with host boards like Arduino/STM32
- Onboard voltage translator, 3.3V by default, allows to be switched to 5V via 0Ω resistor
- SIM card slot, compatible with both normal SIM card and NB-IoT specific card
- 2x LED indicators, easy to monitor the working status
- Baudrate: 300bps~3686400bps (115200bps by default)
- Control via AT commands (3GPP TS 27.007, 27.005, and SIMCOM enhanced AT Commands)
- Supports SIM application toolkit: SAT Class 3, GSM 11.14 Release 98, USAT
- Comes with development resources and manual (examples for Raspberry Pi/Arduino/STM32)
Block Diagram
