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Supports dial-up, telephone call, SMS, TCP, UDP, DTMF, HTTP, FTP, etc. Supports GPS, BeiDou, Glonass, LBS base station positioning
Onboard USB interface, to test AT Commands, get GPS positioning data, and so on Onboard CP2102 USB to UART converter, for serial debugging
Breakout UART control pins, to connect with host boards like Arduino/STM32 SIM card slot, supports 1.8V/3V SIM card TF card slot for storing data like files, messages, etc.
Onboard audio jack and audio decoder for making telephone call 2x LED indicators, easy to monitor the working status Onboard voltage translator, operating voltage can be configured to 3.3V or 5V via jumper
Baudrate: 300bps ~ 4Mbps (default: 115200bps) Autobauding baudrate: 9600bps ~ 115200bps Control via AT commands (3GPP TS 27.007, 27.005, and V.25TER command set)
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