Hardware To start, set up the hardware as shown below. 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 ...

A simple web interface to control an Arduino relay via SIM800L GSM module - SiliconWit/relay-toggle ...

POC Video Tutorial: A compact board is required to construct this device. The IndusBoard Coin is an ideal choice, measuring only 3cm, with the SIM800L GSM module fitting perfectly within this small ...

Meal Reminder System – Circuit and Working Fig. 2 shows the circuit diagram of the automatic daily meal reminder system. It is built around the Arduino Uno (MOD1), RTC3231 (MOD2), SIM800L GSM module ...

This paper describes the design of a 3D printer fire detection system (3DP-FDS) with a GSM connection, its purpose being to avoid fire accidents. The key feature of the system is the ability to send ...