Category: GSM

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Send SMS using push switch

Here we are going to make a GSM + Arduino project to send SMS using an electric push button or switch. In this device whenever the switch is pressed, a text message (text in...

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How to send SMS using GSM modem

This article explains about Text messaging using GSM modem. Here we are sending TEXT messages from GSM modem with Arduino UNO using AT commands. Arduino code  void setup() {  //Set Exact Baud rate of...

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Gsm based home security system using arduino

A GSM home security system alerts you by a phone call when any theft attempt or similar triggering action is sensed by the device. Here a theft attempt or burglar entry is detected by sensing...

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Interfacing SIM 800 / 900A GSM module with arduino

Here we describe,  TTL serial communication interfacing between a SIM 800 GSM / SIM 900A GSM module and an Arduino board. For TTL serial connection, connect the pins from the device to Arduino as,...