Contents
What is the full meaning of GSM?
Global System for Mobile Communications
The Global System for Mobile Communications (GSM) is a standard developed by the European Telecommunications Standards Institute (ETSI) to describe the protocols for second-generation (2G) digital cellular networks used by mobile devices such as mobile phones and tablets.
How does the GSM work?
Working : GSM is combination of TDMA (Time Division Multiple Access), FDMA (Frequency Division Multiple Access) and Frequency hopping. Initially, GSM use two frequency bands of 25 MHz width : 890 to 915 MHz frequency band for up-link and 935 to 960 MHz frequency for down-link. Later on, two 75 MHz band were added.
How to send SMS using GSM modem or dongle?
This is a module by which one can send SMS via a GSM modem. This code is test on IDEA 3G (India) dongle. The code use serial module by which it invokes the AT command for sending out SMS to designated numbers. This used “serial” module, it encapsulates the access for the serial port.
How does a GSM modem work on a cell phone?
GSM modem is a hardware which accepts a valid SIM card (Subscriber Identity Module), basically any SIM will work, which supports GSM protocol and with a network subscription. It is like a mobile phone without Screen and keypad. It has four I/O pins depending on the model you choose.
How to send and receive SMS using sim7600 GSM module?
Sometimes, it is easier for us to control devices or monitor events through SMS. In this tutorial, we will show you how to send and receive SMS using SIM7600 GSM module and Arduino. This video shows how to send and receive SMS using SIM7600 GSM module and Arduino. If playback doesn’t begin shortly, try restarting your device.
How to connect a SIM card to a GSM module?
Insert the SIM card to GSM module and lock it. Connect the adapter to GSM module and turn it ON! Now wait for some time (say 1 minute) and see the blinking rate of ‘status LED’ or ‘network LED’ (GSM module will take some time to establish connection with mobile network)