There is actually a PLC from Arduino, and if you want to dip your toes into the PLC world then take a look at this drum kit based on the Arduino Opta. With the PLC at the core of the build ...

That means all you have to do is browse through the book, pick a tutorial you want to work on, gather the materials, and ...

You can think of a PLC as a very rugged industrial Arduino, but it’s best not to ... in series or parallel to form AND and OR gates, for example, while coils can activate contacts.