Arduino Data Logger

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Introduction:

This is a data logger I made for my class. I couldn't find any instructions that I could use to make the Arduino record the light brightness and the temperature. Then display the temperature and the light value on the LCD then Save it to the SD card

Requirements

Collect data from at least 2 sensors
write the data at regular intervals to the SD card, collect it in a comma separated variable file (*.CSV) that can be imported into excel.
display the data to your LCD screen
have the background color of the screen change somehow. Either from the data being collected (green background for nominal values, red for warning), or through the use of a button.

Parts

Here are what I used for parts. From my experience if your trying to follow instructions while learning and are using different parts it is much harder.

If you don't want to buy the stackable header pins for the Datalogger shield you can use some way like how I modified the Datalogger shield in step 2 so that it could be placed in the bread board.

Datalogger shield
Stackable header pins
LCD Display
Experimentation Kit for Arduino (Uno R3)
     or
Arduino Uno
Photo cell
Analog Temperature sensor