Sim900 GPRS and keyPad

Projects Programming
4

I could still not get it to work, here is my updated codes:

////Libs//////////////////////////////////
#include <Key.h>
#include <Keypad.h>
#include <SoftwareSerial.h>
//////////////////////////////////////////

///SoftwareSerial/////////////////////////
SoftwareSerial sim900(2, 3);
//////////////////////////////////////////

////Bytes/////////////////////////////////
const byte nbDigitInPhoneNb  = 8;
/////////////////////////////////////////

////char//////////////////////////////////
char telNR[nbDigitInPhoneNb+1];
char key;
//////////////////////////////////////////

////INTes/////////////////////////////////
int antT = 0;
//////////////////////////////////////////

////Tast opsett - keyPad//////////////////
const byte ROWS = 4; //four rows
const byte COLS = 4; //four columns
char keys[ROWS][COLS] = {
  {'1', '2', '3', 'A'},
  {'4', '5', '6', 'B'},
  {'7', '8', '9', 'C'},
  {'*', '0', '#', 'D'}
};
/////////////////////////////////////////

////Pin oppsett///////////////////////////
byte rowPins[ROWS] = {3, 4, 5, 8};
byte colPins[COLS] = {9, 10, 11, 12};
//////////////////////////////////////////

////Oppsett keyPad////////////////////////
Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );
//////////////////////////////////////////

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  sim900.begin(9600);
  reset();
}

void loop() {
  // put your main code here, to run repeatedly:
  key = keypad.getKey();

  if (key) {
    if (key >= '0' && key <= '9' && antT < 8) {
      telNR[antT] = key;
      antT++;
    }
  }
  if (antT >= nbDigitInPhoneNb) {
    telNR[nbDigitInPhoneNb] = '\0';
    sim900.print("ATD");
    sim900.print(telNR);
    sim900.println(";");

    Serial.println("Ringer....");
    Serial.print(telNR);
    reset();
  }
}

void reset() {
  antT = 0;
  //memset(telNR, '\0', nbDigitInPhoneNb+1);
}

Is this right?

Thanks again :slight_smile: