A secure electronic voting system with real-time authentication and keypad enables accurate, tamper-proof voting through ...

A keyboard matrix circuit is a design used in most electronic musical keyboards and computer keyboards in which the key switches are connected by a grid of wires, similar to a diode matrix. This kind ...

I2C or inter-integrated circuit is a communication protocol which is very efficient. With it, one master can communicate to multiple slaves using just two pin, namely the SDA and SCL. It is a serial ...

Abstract: In an era where homeowners frequently leave for work or education, robust security for residences is imperative. Traditional security measures, including window and door locks, present ...

The exploration and monitoring of underwater environments has been revolutionized by ROVs equipped with sonar tracking capabilities. These unmanned systems have become indispensable tools in marine ...

Here’s a fun build from [RootSaid] that is suitable for people just getting started with microcontrollers and robotics — an Arduino-controlled two-wheeled robot. The video assumes you already have one ...

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 ...

A lot of US business phone numbers have letters in them so they can be more easily remembered. Your iPhone has a number and letter keypad; each number corresponds to three or four numbers. To dial ...

Ever wanted to receive real-time SMS alerts for your Raspberry Pi projects without dealing with bulky GSM modules or… ...