||GSM Sim900 with Arduino MEGA || Connection, AT commands, Voice Call, SMS send,

Check out how to upload sensor values to internet using sim900 and Arduino:

AS REQUESTED NEW LINKS PROVIDED:

Find below All codes:

- Voice call:

[moussaab]

عند قطع تيار على gsm يجب ان ضغط من جديد على زر تشغيل و اعادة رفع البرامج من جديد هل هناك حل لهذه المشكلة

[moab]

I have a problem, I hope you help, sir. The gsm sim 900 is working normally, and I can send messages and they appear in the monitor normally, but when you press the restart button, the gsm does not work and the question mark appears in the monitor unless you raise the code again

[roibendet]

Hey,
How can I catch the RING event and decline the call?

[Akshaykumar-uuhi]

when i press AT on the serial monitor, I am getting infinite number of Y^ on the screen. Can u please tell us what's the problem is
....

[legendqwqw]

ماشاء الله طرحك جميل واتمنى لك التوفيق
ملاحظة اتمنى انك تستخدم سكتش واحد والباقي تكتبهم نوت عشان تكون الصورة اوضح

[shaikhabughaith]

i must put a sim card to the GSM?
and the second question i use Arduino uno? so where i should connect the 19 and 18 pins?

[mohammedaljanabi]

الف شكر على المعلومات حاولت استخدام ال CODES لكن هناك error ; could not create the sketch
ممكن النصيحة

[mansurat]

Can I power sim900 with 12V, 2A dc adapter?

[yaaa]

hye, what is the character to terminate the message??

[franciskpeyibor]

WHERE DOES THE ARDUINO GET ITS POWER SOURCE

[juv]

Nothing is appearing on when the screen when i type AT.
Do you have a solution for that?

[maysoonmissou]

بليز عندي مشكل سيريال مونيتور ما تظهر فيها النتائج شو السبب؟؟؟

[pedrodossantos]

Can you please the code or send the link for downloading??

[mariokan]

Hi Ali
I tried this with a Sim900 and Mega like you, on serial1, serial2...with or without GND, same wiring
Never receive with AT the OK, have you an idea ?
Is it possible you put hear code program ?
Thanks

[mohamedkhalil]

ماشاء الله اتمنى بالتوفيق ممكن رقم التليفون