I just bought a SIM900 Arduino shield from AZDelivery. I only have a Mega 2560 board, thus I am trying to use this although most examples (like the tutorial from AZDelivery) are with the Uno board. I am using the SIM card from my mobile phone, not having any PIN. This is the Arduino library I am using.
I didn't flash anything on the SIM900 board prior to testing, because in the instructions from AZDelivery Ebook this was not mentioned.
My NetLight LED is blinking constantly (1 blink per second) I guess it is not finding the mobile network.
At the momemt, I only have a 1A supply, though I've already ordered a new one with 2A. Could this be the reason for point 2? Does the board need 2A to log into the network?
Asuming it would log into the network, the AZDelivery Instruction Sketch/Example is using "SoftwareSerial.h" due to its compatibility to the Uno board. Since I am using a Mega board, can I just use D30 and D31 and set them as Rx and Tx using the SoftwareSerial library?
Can you give me a link to an up-to-date library and/or example for SIM900 working with the Mega 2560 Rev3 and Arduino 1.8.4?
I hope you can help me getting started with the SIM900 module.