# Useful Guides
__Real Time Clock Setup__Setup for SD3231__
[Tutorial on howtomechatronicsarduino.com](https://howtomechatronicscreate.arduino.comcc/tutorialsprojecthub/arduinoMisterBotBreak/arduinohow-to-use-ds3231a-real-time-clock-tutorial/module-ds3231-bc90fe)
__Data logging on SD-card__