SIM800L GSM Module Connections (Requires Level Shifting) The SIM800L module needs special attention because it operates at 3.3V logic levels while Arduino uses 5V. We need a voltage divider circuit to ...

T.K. Hareendran introduces us to the SIM800L.Intro to the SIM800L If you are looking for a compact GSM/GPRS module, you can get the SIM800L from most eBay traders. It is not the most judicious choice, ...

The VTS device consists of the Arduino Mega-2560 and the PRESENT-80 algorithm. The GPS module serves to provide location data, and the sim800L v2 module as a communication module with GPRS services.

The Fingerprint Door Lock (FPDL) using Arduino with SIM800L research is designed to improve the security and convenience of door access control by integrating fingerprint recognition with Arduino and ...