User Guide

20130927
NUR05WL2ImplementationGuidev1.1
functioncanbeusedforexampledrivingaLEDindicator.Notethatthisfunctionrequiresa“scantag”or
“inventory”triggerfromanotherGPIOpinsetasaninput.
Beeper(GPIOtype:OUTPUT)
When “beeper” function is used will GPIO pin drive high for a short period of time after a timeout has
surpassedafterlastsuccessfultagreading.Thetimeoutcanbedefinedasaparameterforthefunction.If
no tags were successfully read and the timeout was surpassed the pin will drive high three times. This
function can be used for example driving a beeper. Note that this function requires a “scan tag” or
“inventory”triggerfromanotherGPIOpinsetasaninput.GPIOishighalsowhensendingabeepcommand
(13)overtheSWAPI.
Inventory(GPIOtype:INPUT)
When “inventory” function is selected will reader start reading when it is triggered by selected GPIO.
Triggeringcanbeconfiguredtobefromfalling/rising/bothedges.Readerwillreadaslongasitfindsnew
tags.Timeintervalbetweenendofreadingandlastfoundtagcanbeconfigured.
Scantag(GPIOtype:INPUT)
WhenGPIOisconfiguredas“scantag”readerwillperformjustoneread.Triggeringcanbeconfiguredtobe
fromfalling/rising/bothedges
Notify(GPIOtype:INPUT)
WhenGPIOisconfigured as “notify” will reader sendnotificationto Hostapplicationwhentriggered by
selectedGPIO.Triggeringcanbeconfiguredtobefromfalling/rising/bothedges
Antennacontrol1(GPIOtype:OUTPUT)
WhenGPIOisconfiguredas“antennacontrol1”itcanbeusedforcontrollingexternalmultiplexeronthe
Host board to switch between two antennas. Via the SW API it’s possible to select which antennas are
enabledandusedorletthemoduleautomaticallyswitchbetweenthem.
Case(selectedantenna) antennacontrol1
0(antenna1) low
1(antenna2) high
Antennacontrol1&2(GPIOtype:OUTPUT)
If you want to connect up to 4 antennas and multiplex those using NUR05WL2 module you need to
configure2GPIOstocontroltheantennaswitch.InthiscaseyoudefineoneGPIOtobe“antennacontrol1”
andsecondonetobe“antennacontrol2”.ViatheSWAPIit’spossibletoselectwhichoftheconnected
antennasareenabledandusedorletthemoduleautomaticallyswitchbetweenthem.