SIM800L GSM/GPRS module is a miniature GSM modem, which can be integrated into a great number of IoT projects. You can use this module to accomplish almost anything a normal cell phone can; SMS text messages, Make or receive phone calls, connecting to 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.
Getting the SIM800L module to work properly is dependent on a proper power supply. This adapter board is the answer to all those countless hours of frustration!
Simply plug in the SIM800L GSM module and either a 12V battery or any other power source not exceeding 18V. You can use either the screw terminals or the barrel jack connector. Input is polarity protected.
Min 9V 2A Max 18V
Connect RX terminal to Arduino pin D2
Connect TX terminal to Arduino pin D3
Connect GND terminal to Arduino GND
Make sure your SIM card PIN is disabled by first inserting it into your phone and under the SIM settings, disable the PIN.
NOTE: SIM800L MODULE NOT INCLUDED
NB: SIM800L MODULE IS NOT 5V TOLERANT, DOUBLE CHECK RX AND TX CONNECTIONS
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