Looking for Latest Electronics Project Kits? There are different kinds of GSM modules available in market. Interfacing a GSM datasheet arduino uno r3 pdf to Arduino is pretty simple. You only need to make 3 connections between the gsm module and arduino.
So lets get to business! 5V or other values of power and ground connections. These type of provisions vary with different modules. Lots of varieties of GSM modem and GSM Modules are available in the market to choose from. GSM module with TTL Output provisions. We have created this buyers guide to help you select the right GSM module for your project needs. This means the module supports communication in 900MHz band.
We are from India and most of the mobile network providers in this country operate in the 900Mhz band. If you are from another country, you have to check the mobile network band in your area. GSM modules are manufactured by different companies. They all have different input power supply specs. You need to double check your GSM modules power requirements.
In this tutorial, our gsm module requires a 12 volts input. So we feed it using a 12V,1A DC power supply. I have seen gsm modules which require 15 volts and some other types which needs only 5 volts input. If you are having a 5V module, you can power it directly from Arduino’s 5V out. GSM Modules are manufactured by connecting a particular GSM modem to a PCB and then giving provisions for RS232 outputs, TTL outputs, Mic and Speaker interfacing provisions etc.