Arduino GSM Project: Security Alert message to multiple numbers

(Last Updated On: June 4, 2020) Description: Arduino GSM Project: Security Alert message to multiple numbers-In this tutorial, you will learn how to make an Advanced security system and send the Security Alert message to multiple numbers using Arduino and A GSM Sim900A Module. For the demonstration purposes, I will be using an LDR, which … Continue reading Arduino GSM Project: Security Alert message to multiple numbers