You may add an antenna to your SIM800L module in two ways. As a result, picking an antenna could be critical. To utilise the module for voice or data communications, as well as some SIM instructions, you'll need an antenna. There is an LED on the top right side of the SIM800L Cellular Module which indicates the status of your cellular network. Send and receive GPRS data (TCP/IP, HTTP, etc.) Make and receive voice calls using an external 8Ω speaker & electret microphone Supports Quad-band: GSM850, EGSM900, DCS1800 and PCS1900Ĭonnect onto any global GSM network with any 2G SIM This module measures only 1 inch² but packs a surprising amount of features into its little frame. This makes it a good choice for embedding into projects without a lot of space. The operating voltage of the chip is from 3.4V to 4.4V, which makes it an ideal candidate for a direct LiPo battery supply. Another advantage is that the board makes use of existing mobile frequencies, which means it can be used anywhere in the world.Īt the heart of the module is a SIM800L GSM cellular chip from SimCom. The SIM800L is a GSM module from Simcom that gives any microcontroller GSM functionality, meaning it can connect to the mobile network to receive calls and send and receive text messages, and also connect to the internet using GPRS, TCP, or IP. You can use this module to accomplish almost anything a normal cell phone can SMS text messages, make or receive phone calls, connect to the internet through GPRS, TCP/IP, and more! To top it off, the module supports quad-band GSM/GPRS network, meaning it works pretty much anywhere in the world. SIM800L GSM/GPRS module is a miniature GSM modem, which can be integrated into a great number of IoT projects.

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