Arduino and Gsm based laser security system

(Last Updated On: June 27, 2020) Laser Security System Project Description: Arduino GSM Laser Security System– This Tutorial is based on the Laser Security system using Arduino and GSM sim900A module. This tutorial explains step by step ¬†How to make your own GSM-based laser security system using Arduino, LDR, and sim900A GSM module. The main … Continue reading Arduino and Gsm based laser security system