u8 eportIn (u16 eportNumber)
|eportNumber : The expansion port number from which to read|
|returns the input state of eportNumber|
Reads the input state of the given expansion port, eportNumber. If the voltage on the port is less than the module's Off Level, portIn returns 0 (Off). If the voltage on the port is greater the module's On Level, portIn returns 1 (On).
u8 i = eportIn(0x10); // Reads the input state of port 0x10 and stores the result in variable i