GSM, GPS and GPRS modules
Using these three "G's" you can build a device that tracks its location using GPS, sends this information via GPRS and communicates via GSM when needed. The possibilities are endless, from car tracking devices to smart irrigation systems to autonomous robots.
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GSM modules
We'll start with GSMwhich means Global System for Mobile Communications. GSM modules allow you to incorporate mobile communications into your projects. You can send and receive SMS, make phone calls and even connect to the internet using a mobile network. Imagine your project can send alerts to your phone or respond to SMS commands.
GPRS modules
GPRS, which is General Packet Radio Serviceis the next step. This is actually an extension of GSM that allows data transmission. With GPRS, you can transmit data over a cellular network, which is great for sending telemetry data, such as temperature or humidity, in real time. GPRS is ideal for IoT applications where you need to send data from your device to a server or cloud.
GPS modules
And finally GPS, Global Positioning System. GPS modules are invaluable when you need your project to know its exact location. This is great for vehicle tracking or any other project that needs navigation or localization. With GPS modules, you can create a device that knows exactly where it is, where it needs to go, or even where it has already been.
