Random Nerd Tutorials

Arduino – Datalogger with Temperature Sensor and Photoresistor


In this project I’m going to create a simple Datalogger with my Arduino and an Ethernet shield.

With this concept you can change my code and monitor any sensor you desire.

I’ll be using a photoresistor and a temperature sensor and all the information will be stored in a micro SD card.

Watch the video below for a complete tutorial

Note: I apologize for my voice. I’m a bit sick so my voice sounded a bit different than usual.

Parts Required


You can use the preceding links or go directly to MakerAdvisor.com/tools to find all the parts for your projects at the best price!



Upload the code below

I hope this tutorial can help you with your projects!

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News: I’m currently working on a project that I’m really excited about. I won’t tell exactly what It is. But I’ll share with you in a few weeks as soon as It’s finished. So stay tuned for more.

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