10Old-School Analog Dial

Old-fashioned analog displays have a certain charm. In this project I’ll demonstrate how to make your own.

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PARTS REQUIRED

Arduino board

Breadboard

Jumper wires

Tower Pro SG90 9g servomotor

Photoresistor

10k-ohm resistor

LIBRARY REQUIRED

Servo

HOW IT WORKS

Today, visual representations of measurements are usually displayed digitally on an LCD screen or with LED digits, but not that long ago analog dials were always used to show pressure, speed, and even time! The Arduino can detect a voltage input from a sensor, and we’ll ...

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