OK now that we have introduced both the RTC and the SD card and verified that they're working, we can move onto logging!

We'll use a pretty good & detailed demonstration to show off the capabilities of this most awesome data logging shield: We'll log both temperature and relative light levels to determine:

  1. How much does the temperature in a fridge vary as the compressor turns on and off?
  2. Does keeping the door open cause a big temperature drop? How long does it take for it to cool down?
  3. Does the light inside really turn off when the door is closed?

This guide was first published on Apr 12, 2013. It was last updated on Mar 20, 2024.

This page (Light and Temperature Logger) was last updated on Apr 06, 2013.

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