webduino.module.Photocell
The Photocell class.
Photocell is small, inexpensive, low-power sensor that allow you to detect light.
Table of Contents
Constructor
webduino.module.Photocell
-
board
-
analogPinNumber
Parameters:
-
board
webduino.BoardBoard that the photocell is attached to.
-
analogPinNumber
IntegerThe pin that the photocell is connected to.
Methods
addListener
-
type
-
listener
Add a listener for a certain type of event.
Parameters:
-
type
StringEvent type.
-
listener
FunctionEvent listener.
emit
-
type
-
object,...
Emit an event of certain type.
Parameters:
-
type
StringEvent type.
-
[object,...]
Object optionalEvent object(s).
listeners
-
type
Return the listener list bound to certain type of event.
Parameters:
-
type
StringEvnet type.
measure
-
callback
Start detection.
Parameters:
-
[callback]
Function optionalCallback after starting detection.
off
()
Stop detection.
on
-
callback
Start detection.
Parameters:
-
[callback]
Function optionalCallback after starting detection.
once
-
type
-
listener
Add a one-time listener for a certain type of event.
Parameters:
-
type
StringEvent type.
-
listener
FunctionEvent listener.
removeAllListeners
-
type
Remove all listeners of certain type.
Parameters:
-
type
StringEvent type.
removeListener
-
type
-
listener
Remove a listener for certain type of event.
Parameters:
-
type
StringEvent type.
-
listener
FunctionEvent listener.
setMaxListeners
-
n
Set maximum number of listeners that is allow to bind on an emitter.
Parameters:
-
n
NumberNumber of listeners.
Attributes
Events
PhotocellEvent.MESSAGE
Fires when the value of brightness has changed.