Measure speed with two photoresistors

In this project I show you a simple way to measure the speed of objects passing by.

May 25, 2022

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Components and supplies

1

Arduino Mega 2560

2

Resistor 10k ohm

2

Photo resistor

Project description

Code

Code

arduino

Downloadable files

Schematics

Connect everything as shown in this picture. It is very important that the two photoresistors are 10cm apart from each other. Otherwise you will get wrong speed measurements.

Schematics

Schematics

Connect everything as shown in this picture. It is very important that the two photoresistors are 10cm apart from each other. Otherwise you will get wrong speed measurements.

Schematics

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