Arduino – Datalogger with Temperature Sensor and Photoresistor

Picture of 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.

I’ll be using a photoresistor and a temperature sensor and all the information will be stored in a micro SD card.
The idea is that you can apply this to any sensor you desire!

Watch the Video below:

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Step 1: Parts Required

Picture of Parts Required
  • 1x Arduino Uno
  • 1x Ethernet Shield
  • 1x Micro SD Card
  • 1x Temperature Sensor (I’m using the LM335Z)
  • 1x Photoresistor
  • 1x 1k ohm Resistor
  • 1x 4700 ohm Resistor
  • 1x Breadboard (or two)
  • Jumper Cables

Step 2: Schematics

Picture of Schematics
Simply follow the schematics.

Step 4: Final Step...

Picture of Final Step...
It's done, now you can modify my code and monitor any sensor you want!
If you didn't watch the youtube video yet, make sure you watch now.
Not only to see the video demonstration, but you can also find more information that might help you finish this Instructable.

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jose pablos5 months ago

hi, i have question/need help with something... i am exactly at this same step on the arduino road... now i can read/write logs on the microsd, but... i was wondering on how can i append datetime to the log... i do not hace an RTC module, so i was thinking on some different way... apreciate your help and guidance....

spurga_zr7 months ago

I have one question:

I attach SD card on ethernet shield, and i tested it, and card read/write propertly, but i no view SD card on "My computer", and i want to acess to file on "My computer".

its on fat16 filesystem, everything its ok, but i can't see SD card on "My computer"

How to solve that?


LukeM5 spurga_zr6 months ago

Did you fix it?