Hello Everyone- I have a project where I will be using an Arduino to let a process run and then send an sms to log who triggered the process. I know the sim800 draws a lot of current. I plan on using a 5v 3A power supply. When the sim800 kicks in, will this effect the Arduino? Both will be on the same supply. The Arduino is not posing the Sim800. Do I need any to make sure I do not hurt one of the pieces in the circuit?