SIM800L Arduino GPRS Connection Test This Sketch will setup SIM800L to connect to GPRS, setup http connection and read a text file at given URL. Then it will display text data in serial monitor and ...

Naturally, you’re going to need a valid SIM card to fully use the SIM800L module. For compactness, my setup was tested with a 1S (3.7-V) Li-ion battery (with 2,700-mAh capacity) removed from my ...

Here, I’m using the SIM800L and Arduino Nano V3 to develop a nifty one-channel SMS relay. The device is, in fact, ... Though most SIM800L modules work on 3.7 V, my SIM800L module from a new eBay ...

Mount Arduino Nano and SIM800L on the PCB. Connect 5V, 2A regulated power supply across CON1. When security switch connected to pin D9 of Arduino Uno goes low momentarily, an alert SMS carrying ...

The Fingerprint Door Lock (FPDL) using Arduino with SIM800L research is designed to improve the security and convenience of door access control by integrating fingerprint recognition with Arduino and ...

Arduino Nano; SIM800L ; 2G SIM card ; OLED Display; Small 3V battery ; ... Arduino Uno, Nano, Mini all work for this project without changing any single line in code and connection. I have used ...