In this project you will build a bench power supply from a Computer power supply. It's the cheapest way to get a DC power supply for most Arduino type projects.

A buck converter drops a voltage from a higher value to a lower value. They are based on a switching mode voltage regulator and very efficient.

A relay is an electromechanical switch that alows a high power to be controlled using a low power.

An Arduino prototype shiled allows you to create your own shield for your projects. All pins are connected through and there's space for soldering on components or connectors.

The Arduino UNO R3 is the most used on the Arduino platform. It is based on the Atmel ATMEGA328 micor controller and has the best support for sorftware librariries in the Arduino develoment environment.

An inductive sensor can detect metallic objects without touching them. 

You have built an Arduino on a breadboard but you need to program it. How do you do that? This article explains how to get your code on a bare Atmega328P chip so you can use it as if it was an Arduino UNO board.

Wire cutters are generally used to cut metal wire. Some have coated grips that ensure that you will not get shocked by electrical wires you're working with. Slanting cutters have intersecting jaws that cut the wire at an angle, leaving a flat tip.