diff --git a/src/ArdunioCellular.cpp b/src/ArduinoCellular.cpp
similarity index 97%
rename from src/ArdunioCellular.cpp
rename to src/ArduinoCellular.cpp
index f2fa513..91859a6 100644
--- a/src/ArdunioCellular.cpp
+++ b/src/ArduinoCellular.cpp
@@ -41,16 +41,16 @@ void ArduinoCellular::begin() {
 
 }
 
-bool ArduinoCellular::connect(const char * apn, const char * gprsUser, const char * gprsPass, const char * pin){
+bool ArduinoCellular::connect(String apn, String gprsUser, String gprsPass, String pin){
     SimStatus simStatus = getSimStatus();
     if(simStatus == SimStatus::SIM_LOCKED) {
-       unlockSIM(pin);
+       unlockSIM(pin.c_str());
     }
 
     simStatus = getSimStatus();
     if(simStatus == SimStatus::SIM_READY) {
         if(awaitNetworkRegistration()){
-            if(connectToGPRS(apn, gprsUser, gprsPass)){
+            if(connectToGPRS(apn.c_str(), gprsUser.c_str(), gprsPass.c_str())){
                 Serial.println("Setting DNS...");
                 Serial.println(this->sendATCommand("+QIDNSCFG=1,\"8.8.8.8\",\"8.8.4.4\""));
                 return true;
diff --git a/src/ArduinoCellular.h b/src/ArduinoCellular.h
index 5021b24..602bf2d 100644
--- a/src/ArduinoCellular.h
+++ b/src/ArduinoCellular.h
@@ -98,7 +98,7 @@ class ArduinoCellular {
          * @param pin The SIM card PIN.
          * @return True if the connection is successful, false otherwise.
          */
-        bool connect(const char * apn, const char * gprsUser, const char * gprsPass, const char * pin);
+        bool connect(String apn, String gprsUser, String gprsPass, String pin);
 
         /**
          * @brief Checks if the modem is registered on the network.