Hi all guys,
I’m new in this forum and aleready i need help :(.
I bought a Shield for my arduino mega(This one: https://www.amazon.com/Kuman-Quad-Band-Modules-Development-Arduino/dp/B01DVXHIVG/ref=sr_1_1?ie=UTF8&qid=1472645344&sr=8-1&keywords=kuman+GSM) and now i’m stuck D:
Because i’m trying to use the GSM part (SIM900) but I don’t know which one of the 6 RX/TX pins are the right ones and even which pins are the essentials for making SIM part works.
I tried it in differents combinatoins with this sketch but i receive no respond:
int led1= 13;
int led2= 12;
int led3= 11;
Serial.println(“GSM Shield testing.”);
//Start configuration of shield with baudrate.
//For http uses is raccomanded to use 4800 or slower.
Enable this two lines if you want to send an SMS.
if (sms.SendSMS(“3388296822”, “Arduino SMS”))
Serial.println("\nSMS sent OK");
//Read if there are messages on SIM card and print them.
if(gsm.readSMS(smsbuffer, 160, n, 20))
Does anyone know how this module works and where i’m wrong? Ty for any help.