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Also, the legend “U5-18b20-LM35 ... Arduino pins 0 and 1. The APC220 module (see next image) has a total of nine pins (only seven are in use), and its small size makes it an ideal solution for ...
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 analog temperature ...