Replace an unreliable cheap pressure switch with an Arduino-controlled high current relay. Ver 2 now includes an auto drain valve.
Project in progress by RedTar4
With the coming .NET Core 3.0, cross-platform serial port is available. Let's have a try on RPi Raspbian.
by Leon Song
This project will show you how to use temperature and hmidity (DHT11 and DHT22) sensors with an Arduino card.
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