How to Use Arduino and a SIM900 to Control a Relay Through SMS
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In this project, I'll show you how to set up your mobile phone to control a relay through a simple SMS. The mobile phone will send the messages and a SIM900 module will receive the message. SIM900 modules are handy for a variety of different applications including vehicle tracking, remote automation, or even for simple things like feeding your fish when you are not home. The SIM900 module will communicate with Arduino through serial communication and the Arduino will turn the relay on or off according to the message it receives. For more information, as well as all the latest Maker Pro projects and articles, visit the official website at https://maker.pro
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