Envoi de sms SIM900

teste ca via la console en mettant un code qui retourne les infos

AT+CPIN?
>>> +CPIN: SIM PIN 
>>> OK

AT+CPIN="9546"//code pin de la carte
>>>; OK

AT+CLCK="SC",0,"9546" // retire pin code
>>> OK

AT+CPIN?
>>> +CPIN: READY