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Version vom 8. März 2021, 12:39 Uhr
Input
Report an error, if the pin has no value.
- inputPinName value
fetch the value from an input pin; reports an error, if there is no value.
- inputPinName valueIfPresent
if the pin has a value, fetch it. Otherwise return nil.
- inputPinName valueIfAbsent: defaultValue
if the pin has a value, fetch it. Otherwise return defaultValue.
Testing
- inputPinName hasValue
true if the input pin has a value; false if not
Output
- outputPinName value: valueWritten
send a value to the output pin. The output pin's type must be compatible.
