This article discuss how you can detect the entry of a person in a room and get this signal inside your MCU. This is NOT a complete project but just an idea that can be implemented in many different projects. ...

One of the most common place where small MCUs are used is to drive big seven segment displays in public area. For example the bank token number, flight or train schedule, train coach number, production volume (in factories), current forex(in ...

An RTC Module or a Real Time Clock Module helps a system keep track of current time (hour, minutes and seconds). It automatically increments the time without any help from the host (microcontroller). Other benefit is that it has a ...

This mini article provides a small circuit idea to interface a 12V or 24V DC Solenoid (or relay) with a 3.3 or 5V microcontroller's i/o pins. Datasheets BD139 Power Transistor (For PINOUT refer this document)

This pictorial step by step guide you show you how you can connect a serial RFID Reader to your PC using USB Port. Before you begin please read the following tutorial on RFID Technology and its ...