Signal Input/Output
Drive the Eletechsup IO22 family of I/O boards: IO22D08 and IO22C04
The Eletechsup IO22C04 and IO22D08 are I/O boards for an Arduino Pro Mini; they provide 4/8 x relay outputs (10A NO/NC outputs) + LED per channel, 4/8 x optically isolated inputs, 4 x pushbuttons, 4 x 9-segment LED display (88:88), handy for time/state info.
Maintainer: bdlow
This library is compatible with all architectures so you should be able to use it on all the Arduino boards.
To use this library, open the Library Manager in the Arduino IDE and install it from there.