- Compatible with Raspberry Pi series boards and Jetson Nano, this module features a 40PIN GPIO extension header, enabling seamless integration with various projects. - Supports multiple communication protocols including dial-up, telephone, SMS, TCP, UDP, DTMF, HTTP, and FTP, making it versatile for many applications. - Offers advanced positioning capabilities with support for GPS, BeiDou, GLONASS, GALILEO, QZSS, and LBS base station, ensuring accurate location tracking. - Equipped with an onboard USB interface for testing AT Commands and accessing GPS positioning data. The CP2102 USB to UART converter facilitates easy serial debugging. - Breakout UART control pins allow for straightforward connections with host boards like Arduino and STM32 for enhanced project flexibility. - Features a SIM card slot compatible with both 1.8V and 3V SIM cards, enabling mobile connectivity. Includes a TF card slot for data storage of files and messages. - An onboard audio jack and audio decoder support telephone call functionalities, adding further utility to your projects. - Two LED indicators provide clear monitoring of operating status, allowing for efficient troubleshooting. - Voltage translator onboard allows configuration of operating voltage to 3.3V or 5V via jumper settings. Supports baud rates ranging from 300bps to 4Mbps, defaulting at 115200bps for optimal performance. Practical Use Cases: 1. Develop a GPS-enabled tracking device for outdoor adventures or logistics management. 2. Create a wireless communication system for IoT applications using SMS and HTTP protocols. 3. Build a telephony project with voice capabilities, integrating mobile network connectivity and audio functionality.