The Raspberry Pi is an ARM based, very powerful, but cheap mini computer. The natively supported operating system is Linux-Userbereich.
For automation projects, the direct access to GPIOs, SPI, I2C and One Wire is a big value of the board.
CODESYS can easily be installed from the store. It can then be used in a 2h demo, but restarted as often as possible.
To install CODESYS, follow the following steps...
Note: Remember to change the password of the user pi to secure the system!