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 ...

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 ...

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 ...

A secure electronic voting system with real-time authentication and keypad enables accurate, tamper-proof voting through identity verification and controlled access. Voters authenticate using unique ...

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 ...

Abstract: I welcome you to the fourth issue of the IEEE Communications Surveys and Tutorials in 2021. This issue includes 23 papers covering different aspects of communication networks. In particular, ...