Electronics Created a High-Loudness ECM Microphone Amplifier that Operates on Phantom Power Imadeamicrophoneamplifierthatcanrunonphantompowerandcanhandlehighvolume.CircuitCircuitdiagramThisisamicrophoneamplifierc... 2021.05.22 Rose Electronics
Electronics Got the PCB I ordered from PCBWay in just six days! and assembled the IV-6VFD clock! IorderedPCBsfortheIV-6VFDclockfromPCBWaylastweek,andtheyarrivedinjust6days.HerearethedetailsaboutthePCBIordered.Fromorde... 2021.05.21 Rose Electronics
Electronics Using PCF2129, a real-time clock IC, with ESP32 PCF2129Operatesat3.3VThePCF2129isareal-timeclockICthatcanrunat3.3V,andisconnectedtothemicrocontrollerviaI2CorSPI.DS3231i... 2021.05.15 Rose Electronics
Electronics All the numbers were displayed by dynamically lighting them with the beautiful and transparent VFD display tube IV-27M Inthepreviousarticle,Idisplayedonlyonedigit,butthistimeIwouldliketodynamicallylightupanddisplayalldigits.Hereistheprevio... 2021.05.12 Rose Electronics
Electronics Displaying a single digit number with the beautiful and transparent VFD display tube IV-27M ThistimeIwouldliketocontroltheIV-27MwithESP32anddisplaythenumbers.HereisthepreviousexperimentalarticlewhereItriedthisout... 2021.05.12 Rose Electronics
Electronics Shining the beautiful and transparent VFD display tube IV-27M IlituptheIV-27M,whichIbarteredwitharetrodisplaytubeenthusiastinUkraine.FormoreinformationabouttheVDFIbarteredwith,please... 2021.05.12 Rose Electronics
Famicom The 3rd Try My Luck at Buying Unlabeled Junk Famicom Cassettes at a Recycle Shop ThisisasectionwhereIbuyunlabeledcassettesfromthejunkFamicomcassettesectionofHardOffandtrytoplaythem.Thistime,Ifoundapurp... 2021.05.11 Rose Famicom
Electronics Designed a clock PCB for VFD display tube IV-6 and MM5316N and ordered it from PCBWay NowthatIhavecompletedtheclockusingIV-6andMM5316N,IwouldliketoconvertittoPCBandorderitfromPCBWay.Hereisthepreviousarticle... 2021.05.11 Rose Electronics
Electronics VFD display tube IV-6 and MM5316N clock in alarm clock style TheVFDclockImadetheotherdaywasbuiltintoanalarmclocktomakeitlooklikeanalarmclock.Thepreviousarticleishere.SolderingRemove... 2021.05.11 Rose Electronics
Electronics I made neon tubes glow with an inverter transformer and blocking oscillation Theblockingoscillationcircuitisasimplehigh-voltagegeneratorcircuitthatcanbemadeusingonlyatransformer,transistor,andresis... 2021.05.11 Rose Electronics
Electronics VFD display tube IV-6 and MM5316N with clock source added to become a clock Inthisarticle,IwouldliketoaddaclocksourcetothepreviouscircuittomakeitaVFDclock.Thepreviousarticleishere.50HzclockThecloc... 2021.05.11 Rose Electronics
Electronics I made a ring oscillator using transistors Imadearingoscillatorcircuitwithtransistors,wheretheLEDslightupinsequence.RingoscillatorIfyouconnectanoddnumberofNOTgates... 2021.05.11 Rose Electronics
Electronics Making a clock using VFD display tube IV-6 and MM5316N I'mgoingtomakeawatchoutofanIV-6thatIbarteredwitharetrodisplaytubeenthusiastinUkraine.PuttingtheVFDontheboardTheIV-6sIbar... 2021.05.04 Rose Electronics
Electronics Made a compact DCDC converter that generates high voltage for Nixie tubes from 5V WehavecompletedaDCDCconverterthatgeneratesthehighvoltagerequiredforNixietubesfrom5V.Here'salookattheprocessofmakingit.Th... 2021.05.02 Rose Electronics
Electronics Blinking Neon Tube with Arduino Hi,I'mkohanii.OurshopmakeshighvoltageDCDCconvertersforNixietubes.Youcanfinditat↓ThisDCDCconvertercanboosta5Vpowersupplyt... 2021.05.02 Rose Electronics
Electronics How to convert an Nintendo Famicom to video output super easily with FCAV Here'showtouseFCAVtoconvertyourNintendoFamicom(NESJapanVersion)tovideooutputinasupereasyway.TheFCAVhasthemeritofreducing... 2021.05.01 Rose ElectronicsFamicomInstruction Manual
3D Printer Lithium-ion battery-powered compact flashlight I made Bycombiningalithium-ionrechargeablebatterywithaninexpensivecharge/dischargeboard,acompactflashlightwascreated.Configurat... 2021.05.01 Rose 3D PrinterElectronics
Electronics I turned on the VFD indicator tube IV-6 IlitupaVFDindicatortubeIV-6thatIbarteredwitharetroindicatortubeenthusiastinUkraine.Herearethedetailsofthebarter.Specific... 2021.05.01 Rose Electronics
Electronics ESP32 reduced current consumption during DeepSleep by putting HX711 into power down mode. IconfiguredascalewithHX711andmadeamailboxthatnotifiesmewhenthereismail.ByreplacingtheregulatorwithaDCDCconverterandtheUS... 2021.04.28 Rose Electronics
Electronics A retro display tube enthusiast from Ukraine and I exchanged my Nixie tube clock kit for his display tube! IwascontactedbyaretrodisplaytubeenthusiastfromUkraine.HesaidhewasveryinterestedinalarmclockstyleNixietubeclocks.Hewanted... 2021.04.28 Rose Electronics
Electronics Modification of DPS605U, a Chinese regulated power supply with constant current function, almost eliminated the ripple. WhenIexperimentedbyconnectingalargeloadtotheDPS605U,therewasquiteabitofripplenoiseonit.Pleaseseehereforthereviewandloade... 2021.04.28 Rose Electronics
Electronics Trying a different step-up circuit to see if a small high current transformer can be used as a power supply for Nixie tubes. LasttimeItriedconnectingittotheNixieDCDCvoltageboostcircuit,butitdidn'tboostthevoltageproperly,soItriedadifferentcircuit... 2021.04.27 2021.04.28 Rose Electronics
Electronics I got a small high-current transformer, so I experimented to see if I could use it to power a Nixie tube. IfoundatransformerthatcancarrythreetimesmorecurrentthantheoneusedintheNixieDCDC,soIexperimentedtoseeifIcouldincreasetheo... 2021.04.27 Rose Electronics
Electronics The LCD panel of the iPhone broke, so I replace it by myself. TheLCDpanelofIphonecanberepairedatacostofabout20US$ifyoureplaceitbyyourself.SoItriedtoreplaceitbymyself.BuyinganLCDpanel... 2021.04.27 Rose ElectronicsiPhone
Electronics ESP32-DevKitC's DeepSleep is consuming quite a bit of current, so I investigated the cause. TheESP32-DevKitCisaboardthatmakesiteasytousetheESP32.IoftenusenottheEspressifSystemsgenuineESP32-DevKitC,butitscompatibl... 2021.04.27 2021.04.28 Rose Electronics
Electronics A convenient item that makes the tip of a soldering iron that has become black and no longer soldered shiny Ifyouuseitforalongtimeorleaveitpluggedinforalongtime,thetipofthesolderingironwillturnblackandthesolderwillnotstickatall.... 2021.04.25 Rose Electronics
Electronics Added thermometer to NTP calendar & clock of Canon Canola L1211 display IaddedathermometertoanindicatorthatwasmanufacturedduringtheshortperiodbeforethetransitionfromNixietubestoVFDs.SEPTANIXJ4... 2021.04.25 Rose Electronics
Electronics Revenge of buck-boost DCDC converter circuit to operate ESP32 with two batteries Inthepreviouscircuit,whentheESP32triedtoconnecttoWiFi,thevoltagedroppedandtheESP32rebooted.Thistime,I'llchangetoaDCDCcon... 2021.04.25 Rose Electronics
Electronics Make a circuit using CH340C for ESP32 writing (success). ThecircuitImadetheotherdaycouldnotrecognizeCH340Konmycomputer,soIusedCH340Ctomakethecircuit.Hereisarecentarticleonfailed... 2021.04.18 Rose Electronics
Electronics Make a circuit using CH340K for ESP32 writing (failed). InordertowritetheESP32fromtheArduinoIDE,aUSBserialconversionICisrequired.ThistimeIwouldliketomakeacircuitusingCH340KasaU... 2021.04.17 Rose Electronics
Electronics The NTP calendar & clock was completed by controlling the display of Canon Canola L1211 with ESP32. MakingtheclockwithaCanonCanolaL1211displayunitIwouldliketomaketheclock,sincetheworkIhavedoneuntiltheotherdayhasallowedme... 2021.04.14 Rose Electronics
Uncategorized The display of Canon Canola L1211 was dynamically lit with ESP32, and 11-digit numbers could be displayed. EachsegmentofthedisplayunitofCanonCanolaL1211canbeturnedonandoffbyESP32Lasttime,Iwasabletoturnthesegmentonandoff,andIama... 2021.04.14 Rose Uncategorized
Electronics Canon Canola L1211's display unit controlled by ESP32 to display a single digit number. EachsegmentofthedisplayunitofCanonCanolaL1211canbeturnedonandoffbyESP32.FormoreinformationaboutJRC(JapanRadioCo.,Ltd.)SE... 2021.04.14 Rose Electronics
Electronics Light up the indicator on an old calculator from the 1970s, Canon Canola L1211. CanolaL1211TheCanolaL1211wasadesktopcalculatorsoldbyCanoninthe1970s.Itisconnectedtoanelectricaloutletandhasanorangeindic... 2021.04.14 Rose Electronics
Electronics I bought DPS605U, a Chinese regulated power supply, with constant current function and modified it a little. TheDPS605Uisaregulatedpowersupplywithaconstantcurrentfunctionthatcanoutputupto60V5A.Thefour-digitdisplayofvoltageandcurr... 2021.04.14 Rose Electronics
Electronics The mailbox with a built-in "scale" that notifies me by e-mail when a mail arrives has been completed! Ihavecompletedamailboxthatdetectsthearrivalofmailbyweightandnotifiesmebye-mail.WeighingwithHX711UsingastraingageandtheHX... 2021.04.14 Rose Electronics
Electronics A very easy way to accurately align the stencil with the PCB ThisarticleisacontributiontoPCBWayPCBDesignTutorial.SMDStencilBeforesurfacemountcomponentscanbemountedonaboard,itisneces... 2021.04.13 kohapepe Electronics
Electronics Make a power supply circuit (step-up/step-down DCDC converter) to run ESP32 on about two batteries. ESP32isamicrocontrollerthatoperatesatabout3Vto3.3V.I'mgoingtomakeaDCDCconvertercircuittorunonabouttwobatteries.Toseewhat... 2021.04.07 Rose Electronics
3D Printer Make a stand to stand the Nintendo switch with a 3D printer OnthebackoftheNintendoSwitch,thereisasmallstandthatallowsyoutostandtheswitchupandplaywithit.However,itwouldoftencomeoff,... 2021.04.07 Rose 3D PrinterElectronicsLeaser Cutter
Electronics Make a flat light emitting lighting by processing acrylic into a light guide plate with a laser cutter Iwantedtomakeaplaneluminescentlight.Thisisthesamemechanismusedinthebacklightingoflaptopcomputers,whereapatternisdrawnont... 2021.04.07 Rose ElectronicsLeaser Cutter
Electronics Eliminate The noise mixed in with the HX711 readings IamcheckingthestabilityofascalemadewithHX711andastraingauge,andabnormalvaluesaremeasuredquiteoften.Iammeasuringtheweight... 2021.04.01 Rose Electronics
Electronics Designed a circuit to automatically switch the power supply from the two power sources (nothing designed to). I'mdesigningabattery-poweredESP32-DevkitC.TheESP32-DevkitCcanbepoweredintwoways:fromUSBorfromanexternalpowersupply.Forth... 2021.03.31 Rose Electronics
Electronics Designed a power supply circuit to operate the ESP32 with two batteries (actually, I did not design it) IwantanESP32-DevKitCthatrunsonbatteriesESP32-DevkitCisaboardthatallowsyoutouseESP32easily.ESP32-DevkitCcanbeoperatedbyUS... 2021.03.28 Rose Electronics
Electronics Easy Modification Nintendo Famicom Controller USB Kit is now available! AlittleoveraweekafterIplacedmyorder,myNintendoFamicomcontrollertoUSBconversionboardarrivedfromPCBWay!Thankyouforeverythi... 2021.03.28 Rose ElectronicsFamicom
Electronics Sending measurement data to Ambient to check the stability of strain gauge "scales". Iwouldliketoleavethe"scale"Imadetheotherdayoutdoorsforafewdaystocheckthefluctuationsinthereadings.Therefore,Iimprovedthe... 2021.03.27 Rose Electronics
Electronics See if I could measure the correct weight with a "scale" made from a strain gauge. Ididanexperimenttoseeifthe"scale"andtheprogramImadetheotherdaycouldmeasureweightcorrectly.Here'sthe"scale"Imadetheotherd... 2021.03.27 Rose Electronics
Electronics Make the PCB that can be used with Nintendo Famicom controllers for a PC from PCBWay. IwanttoplaygameswithanNintendoFamicomcontrollerWhenplayingonaPCwithanemulatorsuchasNES,youwillbeplayingwithagamepadthati... 2021.03.27 Rose ElectronicsFamicom
Electronics Making a mailbox with a built-in "scale" to let you know when the mail arrives. Ifyourmailboxisoutdoors,youwillnotknowifyourmailhasbeendelivered.Often,wedon'tevennoticeforawhilethatthemailwe'vebeenwai... 2021.03.21 Rose ElectronicsInstruction ManualLeaser Cutter
Electronics Modify the circuit of the HX711 module to operate at 3.3V and measure the weight with ESP32 HX711moduleis5VspecificationTheHX711modulesoldonAmazonisdesignedtoworkwitha5Vpowersupply.SincetheESP32hasasupplyvoltageo... 2021.03.21 Rose Electronics
Electronics GPS Nixie tube clock that looks like an alarm clock IassembledtwoNixietubeclockswithGPSintheformofalarmclocks.Inthisarticle,weareassemblingtheproducthere👇👇.SolderingSoldert... 2021.03.17 2021.04.18 Rose Electronics
Electronics How to use the GPS-equipped e-paper clock. ApplypowerPrepareaUSBchargerathomeoraUSBchargersoldata100yenstore.PlugtheUSBconnectorintotheUSBcharger.Dothisnearawindow... 2021.03.10 2021.03.17 Rose Electronics
Electronics How to set the time zone of the GPS-equipped e-paper clock LearnhowtosetthetimezoneforyourGPS-equippede-paperclock.Youwillneedasmartphonetosetthisup.Thee-paperwatchwithGPSisnowava... 2021.03.10 2021.03.17 Rose Electronics
Electronics GPS e-paper control PCB is placed in a photo frame and GPS e-paper clock is completed. Inthisproject,IwouldliketointegratetheGPSe-papercontrolPCBintoaphotoframeandmakeitintoaGPSe-paperclock.Here'sa👇👇descript... 2021.03.10 2021.03.17 Rose Electronics
Electronics Made the e-paper control PCB with GPS function. Imadeacontrolboardforane-paperthathasaGPSmoduleandcankeepaccuratetimeatanytime.PrintingsolderpasteIhadthePCBandstencilma... 2021.03.10 2021.03.17 Rose Electronics
Electronics JLCPCB charges for the same design panelizing Inthepast,JLCPCBdidnothavetopayextraforimpositionoftwoexactlythesamecircuitsona10x10cmboard,butwhenIorderedthistime,Ihad... 2021.02.15 Rose Electronics
Leaser Cutter Stamp with the CO2 laser cutter EtcherLaserPro. Whenyouusealasercuttertomakeastamp,youusuallyusesiliconerubber.ThistimeIwouldliketomakeastampbycuttingMDFwithalasercutte... 2021.02.06 Rose Leaser Cutter
Electronics Make a wooden key chain by engraving and cutting with CO2 laser cutter ImadeakeychainfromMDFandveneer,engraved&cutwithEtcherLaserPro.PreparingtheprocessingdataFirst,convertmydogEva'sphototobl... 2021.01.10 Rose ElectronicsLeaser Cutter
Famicom Record the sound source of the actual Nintendo Famicom in stereo [MOTHER] MOTHERspoileralert?Hi,I'mkohanii.ThissitesellsakittoturnyourNintendoFamicomintoapseudo-stereosystem.Thispseudo-stereotak... 2021.01.10 Rose Famicom
Electronics How to fix a Bose QuietComfort QC25 that has lost sound on one side for about $30. DoBoseNCheadphoneshaveatendencytobreakthespeakerononeside?TwoofthembrokeIhavetwoQC25s,andoneofthespeakersstoppedworkinga... 2021.01.02 Rose ElectronicsInstruction Manual
Electronics I made a dynamic microphone with the speaker unit of headphones! & I also tried it with ordinary speakers! Hi,I'mkohanii.Inthefollowingblog,IhadrepairedthespeakersoftheBoseQuietComfortQC25headphones.WhenIrepairmyheadphones,Ibuy... 2021.01.02 Rose Electronics
Electronics How to distribute video to Windows 10, Mac, Android in LAN with OBS Studio Hi,I'mkohanii.IntroducinghowtodistributevideofromawebcamorotherdevicetoanotherPC,Android,etc.SettinguptheOBSStudioMyOSis... 2021.01.02 Rose ElectronicsInstruction Manual
Electronics Make the large 8x8 LED dot matrix even brighter Hi,Konaniihere.It'sHalloweentoday.ImadeaLarge8×8LEDDotMatrixbefore.TheresistorattachedtolimitthecurrentoftheLEDis100Ω.Wh... 2021.01.01 Rose Electronics