This project implements a password-protected electronic door lock system using an Arduino microcontroller. A 4×4 matrix keypad is used to enter the password, while a 16×2 I2C LCD provides system ...

There are plenty of drones (and other gadgets) you can buy online that use proprietary control protocols. Of course, reverse-engineering one of these protocols is a hacker community classic. Today, ...

int led = 13; // the pin that the LED is atteched to int sensor = 2; // the pin that the sensor is atteched to int state = LOW; // by default, no motion detected int val = 0; // variable to store the ...

Keypad phones, believe it or not, are still in use, and there is a surprising amount of variety to choose from. Some of the phones include 4G connectivity, cameras, and are built to last. If you're ...

It’s always nice to simulate a project before soldering a board together. Tools like QUCS run locally and work quite well for analog circuits, but can fall short with programmable logic. Tools like ...

Abstract: The widespread adoption of the fifth generation (5G) of cellular networks has brought new opportunities for the development of localization-based services. High-accuracy positioning use ...

Abstract: Inertial sensors based on MEMS technology are fast becoming ubiquitous with their adoption into many types of consumer electronics products, including smart phones, tablets, gaming systems, ...