LM35 & Memory Card. This is a little DIY project with an Arduino Uno, SD card breakout board, and LM35 temperature sensor. To build a temperature logger using a microSD card, just connect the LM35 ...

Once the data is logged, the SD card can be removed and the .csv file opened in spreadsheet software to make a graph showing temperature change over time. Posted in Arduino Hacks , green hacks ...

There’s also an SD card thrown in for good measure, making this one of the best tracking and data logging shields for the Arduino. The shield can be configured to send GPS and sensor data ...