The sensor shown here is essentially two plates mounted side-by-side, attached to an Arduino Nano using the Capacitor library which uses just two pins, one digital and one analog.

This articles describes how you can use I2C (TWI) communication, Arduino and temperature sensors to measure 3 different temperatures. It can be very ...

Note: If the /ttyACM* port is not available, here are several reasons why Modem manager is using the port. When the port becomes active, modem manager can claim the port, blocking the IDE's access ...

If you’d like to add your own LED, you can move the built-in LED’s pin to one of the other numbered ones, or leave it at 13, plugging your new LED’s longer leg into whatever pin you choose.