Description: Gsm Sim900a Module and Arduino: 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... Read more »
Description: tongue controlled wheelchair- In this post, you can learn how to use two transmitter circuits to power a wheelchair wirelessly. This wheelchair can be operated by magnetic sensors from Hall Effect... Read more »
Description: This tutorial is based on the Arduino and GSM sim900A unit Laser Security system. This tutorial demonstrates step by step how to use the Arduino, LDR and sim900A GSM module... Read more »