EVK-R4 - User guide
UBX-16029216 - R07
Starting up
Page 17 of 31
C1-Public
1.11
Enabling error result codes
Command sent by DTE (user)
DCE response (module)
Description
AT+CMEE=2
OK
Enables the cellular module to report verbose error result
codes.
1.12
PIN code insertion (when required)
Command sent by DTE (user)
DCE response (module)
Description
AT+CPIN="8180"
OK
Enter the PIN code, if needed (enter the PIN of the SIM
card
–
8180 is written here as an example).
AT+CLCK="SC",0,"8180"
OK
Unlock the PIN at power-on (the last parameter is the PIN
of the SIM card
–
8180 is written here as an example).
AT+CLCK="SC",1,"8180"
OK
Lock the PIN at power-on (the last parameter is the PIN of
the SIM card
–
8180 is written here as an example).
1.13
Registration on a cellular network
Command sent by DTE (user)
DCE response (module)
Description
AT+CEREG?
+CEREG: 0,1
OK
Verify the network registration status.
AT+COPS?
+COPS: 0,0,"Verizon
Wireless",7
OK
Read the operator name and radio access technology
(RAT).
1.14
Switching off the EVK-R4
To switch off the EVK-R4, send the +CPWROFF AT command. Make sure to use this command before
switching off the main power, otherwise settings and configuration parameters may not be saved in
the internal non-volatile memory of the cellular module.