"Where did my pet go?" If you have a pet, you've probably asked this question at least once. One moment they're playing ...

This project proposes the creation of a standalone alarm system based on an Arduino Nano board (ATmega328P) combined with a BK A7670E 4G GSM module. The system allows for remote activation and control ...

Before we get started it is important to understand that there two types of nRF24L01 modules available in the market one is called just nRF24L01 and the other is called nRF24L01+ PA+LN. While both the ...

Bluetooth-based spying devices enable eavesdropping, much like those in James Bond films. However, Bluetooth and Wi-Fi have a limited range, restricting their effectiveness. Now, imagine discreetly ...

Abstract: Floods are one of the annual natural disasters experienced by Malaysia and the rest of the world. Destruction of infrastructure, economic losses, and casualties are among the adverse effects ...

How to send a GET and POST request with AT commands using the SIM900 GSM/GPRS module and the Arduino UNO. This is useful for retrieving data from the Web and sending data to a web server for Internet ...

What Is an RGB LED Module? An RGB LED module uses a special kind of LED light that can emit three colors: red, green, and blue. However, you can make any color you could possibly think of by changing ...

We’ve already seen ESP32 WiFI & Bluetooth SoC combined with a cellular modem several times already, and a couple of days ago, I wrote about LILYGO T-A7068X ESP23 board with a 4G LTE modem. Iconic ...