ETT ET-BIG CLOCK BOX User manual
ManualofET-BIGCLOCKBOX
ET
-
BIGCLOCKBOX
ManualofET-BIGCLOCKBOX
ManualofET-BIGCLOCKBOX
ManualofET-BIGCLOCKBOX
ManualofET-BIGCLOCKBOX
ManualofET-BIGCLOCKBOX
ManualofET-BIGCLOCKBOX
ManualofET-BIGCLOCKBOX
ManualofET-BIGCLOCKBOX
ManualofET-BIGCLOCKBOX
ManualofET-BIGCLOCKBOX
ManualofET-BIGCLOCKBOX
ManualofET-BIGCLOCKBOX
ManualofET-BIGCLOCKBOX
ManualofET-BIGCLOCKBOX
14) PressKey tostopAlarmsoundanditalsoclearsthestateofAlarmatPinOutofConnectorAlarmOuttobecomeLogic‘0’
instead.
NOTE: When setting Alarm, especially in apart of Time,it will beset the RTC DS3231; so, it hasto provideBattery Backup
fortheClockbecausethesettingvaluesstillremainalthoughPower-OFF.
7.10)HOW TOUSETEMPSENSORDHT22(ET-SENSORAM2302):
This Model Temp DHT22 is connected to measure Temperature and percentage of Humidity from external device and the
ClockwillreadthevaluetoshowonDisplay.Pleasefollowtheseinstructionsbelow;
1) ConnectTempSensorDHT22atConnectorCon-DHT22TempthatisBox5Pintypeasshownbelow;
2) Connect12VPowerSupplytotheClock.
3) WhentheClockentersnormaldisplaymode,pleasepressKey toseetheTemperaturevalueandpressKey toseethe
percentageofHumidityvalue;,orusermaypressKey toseebothvaluesalternately.
IfitisnotconnectedtoanyTempDHT22,thedisplay,especiallyinthepartofpercentageofHumidity,willshowthevalueas
0.0%.However,theDisplaystillshowsthevalueofTemperatureasnormalbecausetheClockreadstheTemperaturevalueofTemp
SensorfrominternalRTCDS3231instead.
NOTE:WhiletheClockisrunninganduserconnectsorremovesanyTempSensor,useralwaysresetstheClocktocheckifthe
connectionwithTempSensorandallvaluesarereadtobeshownontheDisplayarecorrect.
7.11)HOW TOUSESTOPWATCH:
ThedisplayformatofStopWatchisarrangedinaorderofMinute(00-59):Second(00-59):1/100Second(00-99),
respectively,withResolutionof10mS.ThemaximumtimingofStopWatchis60minutes.WhenKey-9ispressed,itentersMode
StopwatchandthedisplayscreenshowstheStartTimeas00:00:00. Itcanshowthemaximumtimingas 59:59:99; whentheClock
ManualofET-BIGCLOCKBOX
ManualofET-BIGCLOCKBOX
ManualofET-BIGCLOCKBOX
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