@yunhan0 Thank you for the inquiry.
Within our latest Unity plugin ver43, there are the functions setVoltageLevelUp() and setVoltageLevelDown(). These functions can be called to configure the intensity of the stimulation.
There are also the functions setSharpnessLevelUp() and setSharpnessLevelDown() which can be used to configure the pulse width of the stimulation.
At the moment there are no functions to configure directly stimulationTime from Unity.
You would have to set it through Arduino’s uh.stimuTimeCount.
Let me know if you have further questions!