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 ...

[Kevin] attached a MicroSD breakout board to an Arduino-compatible clone. When the clone starts up, it searches the SD card for a file called ‘program.hex.’ This file is sent over to the ...

The examples use a Nucleo F767ZI which requires an SD card breakout, but for about $20 it might be worth starting with the same board the developer appears to be using.