Description
A GSM Module to make your Arduino remotely controllable. This module has all the logic level conversions to 5V so it's connect to your Arduino and get busy developing.
Specifications
Instructables: https://www.instructables.com/id/SMS-Controller-by-Using-SIM800L-V2/
AT Commands: https://www.dropbox.com/s/ci6e9od8qrddcti/SIM800%20Series_AT%20Command%20Manual_V1.09.pdf?dl=0%22