Support: Support dialing, telephone, SMS, TCP, UDP, DTMF, HTTP, FTP, etc. Support GPS, Beidou, Glonass, GALILEO, QZSS, LBS base station positioning.
Support Baud Rate Range: 300bps‑4Mbps (default: 115200bps), support automatic identification baud rate: 9600bps‑115200bps, support AT order control (3GPP TS 27.007, 27.005 and V.25TER order set), support SIM application toolkit: SAT Class 3, GSM 11.14 Rel
Onboard USB Interface: Test AT commands, obtain GPS positioning data, etc., onboard CP2102 USB to UART converter for serial debugging.
Function: Break out UART control pin, connect to STM32 and other motherboards, onboard SIM card slot, support 1.8V/3V SIM card, TF card slot, used to store files, messages and other data. Onboard audio hole and audio decoder for making calls. There are 2
Applicability: Standard for 40PIN GPIO expansion header, support for series boards, for Nano.
