Arduino based Queue Management System - Consultation

Good day everyone!

I am starting on a project which uses arduino and a GSM module (A6 by AI thinker).
attached below is the desired outcome of the whole system.

The problem is I am new to the knowledge of using processing software to interact its GUI with arduino.

Any suggestions on what software would I use to make it easier or less complicated?

I don’t quite understand on how every phone numbers as input will be stored and would be sent and read by the arduino. :confused:

One more thing. Can you show me a sample code of a loop for sending sms one at a time for each phone numbers being registered?

Thank you in advance!

arduinobasedpaperlessqueuemanagementsystem.pdf (415 KB)

duplicate at http://forum.arduino.cc/index.php?topic=512641.msg3494017#msg3494017