SIM800L GSM Module Connections (Requires Level Shifting) The SIM800L module needs special attention because it operates at 3.3V logic levels while Arduino uses 5V. We need a voltage divider circuit to ...

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 ...

Minima is small, and I mean really really small! At only 19.8mm x 16.6mm it is one of the smallest Arduino-compatible boards going.

Telit Wireless’ GE865-QUAD, the smallest globally available GSM/GPRS module, is the seventh Telit M2M module to be certified by Rogers. All of the modules support a range of applications such as ...

But it's possible to go even smaller, as the makers of a new Arduino-compatible product called "Microduino" show. At 1" × 1.1", it's nearly as small as a quarter.

The Sierra Wireless AirPrime WS6318 module is designed to provide essential M2M connectivity in a small and simple package. According to the organisation, the device extends M2M connectivity to ...

Fire Alarm System using Arduino and GSM 🚨🔥 This project is a smart fire alarm system using an Arduino Uno, GSM module, and sensors to detect fire and smoke. The system triggers an alarm, displays ...

arduino gsm security alarm Working of the system is very simple and self-explanatory. When input power is applied to the system, the system goes into standby mode. However, when the terminals of ...