Hello! This is my first post here, on this forum, so I hope I choosed proper forum section.
I'm doing some project based on Arduino Uno, some sensors, LEDs, buzzer etc. I want to add GSM module and see that SIM800L / SIM800L V2 should be enough to send SMS.
I read that these modules should be powered via external power source, and peak current can reach even 2A.
I have some AC adapter - 5V, 2A. If I choose SIM800L V2 and add this connector: https://www.qualitymobilevideo.com/ps204pf1.html
then it will be working properly?
But when I choose SIM800L, then I need something like this: LM2596 DC-DC converter to adjust lower voltage from 5V to ~4.1 V right? But what about current? Will it lower together with voltage?
Thanks in advance for any suggestions.