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Microcontrollers such as Arduinos are a great way to control your custom electronics projects. But you always need some way to connect the external components to the microcontroller board. Jumper wires can work for this, but having too many loose wires running around is just asking for trouble. A good solution for this problem is to use some kind of a shield. This is a circuit board that uses a set of pins to connect directly to some (or all) of the pins on the microcontroller.

A shield is an easy way to connect all of your external components together. You can use shields to control motors, relays, LEDs, or anything else. You can even use proto shields to prototype your whole circuit directly on the board.

In this project, I’ll  show you how you can make your own custom shields for your microcontroller.