Gsm Shield Spreadtrum 1.6

The Spreadtrum stack requires a specific TCP/IP initialization: AT+NETOPEN – Opens network stack. AT+TCPCREATE – Creates a socket.

If you are using the shield with an Arduino or serial terminal for basic communication, you can use these standard AT commands: Arduino Forum : Test connection (should return : Check the product revision and model name. ATE0 / ATE1 : Turn command echo Off or On. : Read the device IMEI number. : Check signal strength. Arduino Forum 4. Troubleshooting Not Connected gsm shield spreadtrum 1.6