7segment interfacing with pic16f877a primer

Relays are devices which allow low power circuits to switch a relatively high Current/Voltage ON/OFF. For a relay to operate a suitable pull-in & holding current should be passed through its coil. Generally relay coils are designed to operate...

This includes an interface that is simple enough for mastery, as the keypad supports input facilities commonly used in Man-Machine Interface (MMI) applications. For example, various types of keypads can be found in the market. This discussion will focus...

The parallel interface transfers data in 8 bits (or more) simultaneously, utilizing eight separate wires. It serves as an extension of the data bus to external devices. This interface is particularly suitable for devices that operate in binary states,...

An 8051 program must interact with external devices that facilitate communication with users. One of the most prevalent devices connected to an 8051 microcontroller is an LCD display. Common types of LCDs used with the 8051 include 16x2 and...

The Spartan-3 board features eight LEDs connected to FPGA I/O pins, with the cathode of each LED connected to ground through a 330-ohm resistor. To illuminate a specific LED, the corresponding FPGA control signal must be driven to a...

How to interface a +5V buzzer with the IC 89S52. It has been suggested to use two BC547 NPN transistors for this purpose. To interface a +5V buzzer with the 89S52 microcontroller, a common approach involves using transistors to...