MANUALOFBOARDET-MiniClock4
ET-MINICLOCK4isDigitalClockwith4-DIGITDOTMATRIX(8x32DOT),andanumeralsizepereachdigitis3cmwide.
It can show theTime, Date, andTemperature;moreover it canbe usedas Timer internal Clock. This Clocksupports 2 sourcesof Time
Base. Firstly, Time Base from internal Clock is RTC DS3231; and secondly, Time Base from External Clock is Module GPS that is
connected via Connector RJ45 (OPTION: ET-GPS-RS422). In the part of GPS, it cansetup Time Zone intherange of ± (TimeZone
forThailandis+7).
Itcansetupandchoosevariousdisplayformatsfor thisET-MINICLOCK4;itcanshowDate,Time,Temperature,Humidity(it
has to additionally connect ET-SENSOR AM2302); or, it is used as Timer; or, it shows flashing message “Open” or “Close”; or, it is
used as Alarm Clock to ring at a particular time in the range of 0-23 hours. There is Buzzer to produce a sound of alarm and there is
ChannelofAlarmOUTinordertocontroloperationofexternaldevicewhenAlarmhappens.
ET-MINICLOCK4iscontrolledviaIRRemotethatisprovidedwithClock.Thereare4modelsaslistedbelow;
-ET-MiniClock4 :WithLegoStandbutNobox,novoicefortelling time
-ET-MiniClock4Box :Aboxwithtransparentacrylic,butnovoicefortellingtime
-ET-MiniClock4Plus :WithLegoStand,voicefromMP3fortellingtime,butnobox
-ET-MiniClock4BoxPlus :AboxwithtransparentacrylicandvoicefromMP3fortellingtime
For the model Plus, Box Plus,there are additional features suchas Speaker andModule MP3; so, user canhear the sound ofAlarm for
everyhour,orusercanpressakeytolistentothecurrenttime.Thereare2languagesfortellingtime;ThaiandEnglish.
1) SPECIFICATIONSOFET-MINICLOCK4
-SPECIFICATIONSOFALLMODELS
ClockusesPOWERSUPPLYDC5VMINIUSBorDC12VTypeJ(POWERSUPPLY12VissuppliedtoClockandGPSfrom
external).Forgeneraluse,theCurrentthatissuppliedatthefulloflightofDisplayis300mAapproximately;andthemaximum
CurrentatFullLoadis450mAapproximately.
ClockiscontrolledbyMCUAVREASYMEGA328
GPS(ET-GPS-RS422)isconnectedviaConnectorRJ45;itisusedasTimeBasetodisplaydata.ItcansetTimeZoneintherageof
±;or,itusesTimeBaseofRTCDS3231internalClockinstead.TheClockalwayschoosesTimeBasefromGPSautomatically
afterPower-ONifitisconnected.
Clockreceivesalluser’sCommandsviaIRRemote(providedwithdevice)
IRRemoteusesBattery3V#CR2025(includedinset);andClockusesBatteryBackup3V#CR2032(includedinset)
Displayisintheformatof4-DigitDotMatrix(8x32DOT)anditonlyshowsthetimein24-hourclock.
ChoosevarioustypesofDisplayMode;Date,Time,Temperature,andHumidity(OPTION:ET-SENSORAM2302).Or,itisused
tobeTimerordisplayflashingmessage“Open’or“Close”;eachdisplaymodeusesdifferentFont.
BeusedasAlarmClockthatcanbesettoringataparticulartime(0-23hours).ThereisBuzzertoproduceringingsound;andthere
is1-CHAlarmOutputthatwillbeSignalLogic“1”whenAlarmhappens(DefaultLogic“0”).Itcanbeconnectedtocontrol
externaldevices.
IfusingTimeBasefromGPS,italwaysautoupdatesDate/TimeofRTC(DS3231)internalClockafterPower-ON.Or,ifusing
TimeBasefromRTC(DS3231)internaldevice,usercanmanuallysetupTime/DatebyIR-Remote.
ON/OFFandadjust16-LevelofbrightnessofDisplay(0-15),andincludingResetClockbyIR-Remote
