[−][src]Module bounced::active
Active Low and Active High Inputs
These types encode behaviour about the physical state of an input.
For example, considering a two-state button as active when pressed would have to consider if the button is NC or NO, and if the input is normally pulled up or down.
| Button | Input | Active |
|---|---|---|
| NC | PU | High |
| NC | PD | Low |
| NO | PU | Low |
| NO | PD | High |
Use Low and High to encode this information, which drives the
beginning state of the debouncer.
For non-buttons, the activity of the input should be the default-state; the state that does not trigger something to occur. However, there is a lot of domain specific information that should drive your choice, which may go against the information here.
Structs
| High | Active High Input |
| Low | Active Low Input |
Traits
| Active |
|