Hello guys,
I need a help.
I am working on a project where I need to use a GSM (SIM 800L) module which operate on 4.7V with 2A current
The problem is arduino is not capable to supply proper current to it so i use DC to DC bulk converter as external power supply with a 2A 5V power supply to it. But some time module lose network so, I need to restart it manually by opening the box and pull out Vss and reconnect i want a automatic solution for it so i code the arduino to reset the module but doing so, I have to use a relay which give a 1 sec connection of REST pinof module to the ground so it can be restate.
But i don't want to use a relay here because it tacking to much space on the box and 2nd i want a silent solution relay triggers a click sound