@author Kai Lauterbach (klaute@web.de)
@date 13.4.2023
@version 1.0
@license GPLv3

A tiny tank cooler.

The fan is startet i case that the temperature reached 26°C and switched off in case it is down to 24.5°C again.

Used components:

Arduino Nano uses ATMega328p (old bootloader)
PC fan 120mm 5V
PWM D4184 MOS breakout board
USB-C connector
BMP280 breakout board

Connections between hardware:

D9 (Pin12) wird mit dem PWM-Eingang der PWM Platine verbunden,
A4 SDA vom BMP280
A5 SCK vom BMP280