Libraries
Class PwmChannel
extends Object
A PWM Channel for an already-opened PWM instance.
Each channel has an individual duty cycle, configured as a duty factor in the range of [0..1].
Class summary
| duty-factor -> float | Gets the current duty factor. |
|---|---|
| set-duty-factor duty-factor/num -> none | Sets the duty factor. The duty factor is clamped to the [0..1] range. |
| close -> none | Closes the channel and detaches from the GPIO pin. |
| operator == other/any -> bool | Whether this object is equal to the other. |
| stringify -> string | Stringifies this object. |
Methods
Closes the channel and detaches from the GPIO pin.
Gets the current duty factor.
Whether this object is equal to the other.
Inheritance
Classes overwrite this operator to get an equality specific to their needs. Equality operators often compare the type and field contents. For example:
class Pin:
number/int
constructor .number:
operator == other:
if other is not Pin: return false
return number == other.number
A class doesn't have to follow the above format, but it must keep the operator in sync with any
hash-code method. That is, if a class has a hash-code member, then the equality and hash-code must agree. If two instances are equal (a == b), then their hash codes must also be equal (a.hash-code == b.hash-code).Sets the duty factor. The duty factor is clamped to the [0..1] range.
A duty factor of 0.0 means the pin is steady low while a duty cycle of 1.0 means the pin is steady high. A duty factor of 0.25 means the pin will stay high for one quarter of the cycle, low for the remaining 3 quarters.