Plug the RFID module into the breadboard with enough space around it. Connect the VCC pin to the Arduino's 3.3V (not 5V), and GND to the ground rail. For the data connections, wire SDA to Pin 10, SCK ...

Place the SIM800L library folder into your \Documents\Arduino ... pin of your board you can reset GSM by external reset pin of the SIM800l GSMTime(time) true or false Will fill up the array you passed ...