Yoctopuce Yocto-RangeFinder, User Manual, Page: 397 / 497

21. High-level API Reference
YLightSensor lightsensor
→
isOnline()
Checks if the light sensor is currently reachable, without raising any error.
js
function isOnline( )
cpp
bool isOnline( )
m
-(BOOL) isOnline
pas
function isOnline( ): boolean
vb
function isOnline( ) As Boolean
cs
bool isOnline( )
java
boolean isOnline( )
py
def isOnline( )
php
function isOnline( )
es
function isOnline( )
If there is a cached value for the light sensor in cache, that has not yet expired, the device is considered
reachable. No exception is raised if there is an error while trying to contact the device hosting the light
sensor.
Returns :
true
if the light sensor can be reached, and
false
otherwise
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