sequence of char to one string

Projects Programming
1

so I need to turn a sequence of characters into one string, here's my current code

#include <SoftwareSerial.h>
SoftwareSerial SIM900(7, 8);
//Variable to save incoming SMS characters
char incoming_char=0;
void setup() {

  • // Arduino communicates with SIM900 GSM shield at a baud rate of 19200*
  • // Make sure that corresponds to the baud rate of your module*
  • SIM900.begin(19200);*
  • // For serial monitor*
  • Serial.begin(19200);*
  • // Give time to your GSM shield log on to network*
  • delay(20000);*
  • // AT command to set SIM900 to SMS mode*
  • SIM900.print("AT+CMGF=1\r");*
  • delay(100);*
  • // Set module to send SMS data to serial out upon receipt*
  • SIM900.print("AT+CNMI=2,2,0,0,0\r");*
  • delay(100);*
  • Serial.println("READY...");*
    }
    void loop() {
  • // Display any text that the GSM shield sends out on the serial monitor*
  • if(SIM900.available() >0) {*
  • //Get the character from the cellular serial port*
  • incoming_char=SIM900.read();*
  • //Print the incoming character to the terminal*
  • Serial.println(incoming_char);*
  • }*
    }

incoming_changes with each loop to form a message but I need it to be one string do you have any idea on how I could do this?

thank you very much in advance

2

Please correct your post above and add code tags around your code:
[code]`` [color=blue]// your code is here[/color] ``[/code].

It should look like this:// your code is here
(Also press ctrl-T (PC) or cmd-T (Mac) in the IDE before copying to indent your code properly)

(read the forum rules, that will help you get answers)

read Serial Input Basics, the technique for building a string from the incoming stream (Serial in that example) is the same as with your data coming from the SIM900.