u8 eportIn (u16 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

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