Current features are:network time and date synchronizationautomatic and manual brightness adjustmentcontrol of 12 LEDs WS2812control via web interfaceAdditional information and firmware updates: https://vk.com/@retromodding-chasy-na-lampah-z570m-z573m-z574m-s-wifi (Russian)

Часы на ИН-14 с максимально компактным размещением деталей

Полностью законченная конструкция часов на лампах ИВ-22 с корпусом. Сердцем и мозгом выступает микроконтроллер Atmega328.С функций присутствует:- отображение и настройка времени ( применена высокоточная микросхема реального времени ds3231)- отображение температуры окружающей среды раз в минуту (применил выносной высокоточный датчик ds18b20)- настраиваемая подсветка ламп на адресных светодиодах WS2812 ( 5 статичных цветов, и 2 динамичных эффекта) при желании отключается- ежечасный звуковой сигнал в дневное время- автоматическая регулировка яркости ламп и подсветки в зависимости от окружающего освещения.Корпус изготовлен из фанеры, заготовки для которого были спроектированы и изготовлены методом лазерной резки, склеены, отшлифованные и покрытые акриловым лаком.Completely finished construction with a body. The heart and brain is the Atmega328 microcontroller.With functions there are:- display and setting of time (high-precision real-time microcircuit ds3231 is used)- display of the ambient temperature once a minute (I used a remote high-precision sensor ds18b20)- configurable backlighting of lamps based on WS2812 addressable LEDs (5 static colors, and 2 dynamic effects), if desired, is turned off- hourly beep during daytime- automatic adjustment of the brightness of lamps and backlight depending on the ambient light.The body is made of plywood, the blanks for which were designed and manufactured by laser cutting, glued, sanded and coated with acrylic varnish.

Current features are:network time and date synchronizationautomatic and manual brightness adjustmentcontrol of 12 LEDs WS2812control via web interfaceAdditional information and firmware updates: https://vk.com/@retromodding-chasy-na-lampah-in-8-2-s-wifi (Russian)

Clock on vacuum fluorescent indicators - IV-6. Simple features - display and adjust the time. Very simple scheme. Software, diagrams and description of the transformer in the BOM file

Current features are:network time and date synchronizationautomatic and manual brightness adjustmentcontrol of 12 LEDs WS2812control via web interfaceAdditional information and firmware updates: https://vk.com/@retromodding-chasy-na-lampah-in-14-s-wifi (Russian)

A board that converts a Nixie tube to a 2.54 mm pitch.

Current features are:network time and date synchronizationautomatic and manual brightness adjustmentcontrol of 12 LEDs WS2812control via web interfaceAdditional information and firmware updates: https://vk.com/@retromodding-chasy-na-vfd-indikatore-iv-18-s-wifi (Russian)

This board goes with my Instructable on making a Neon Lamp Tea Light.I acquired a bag of NE-2 neon indicator lamps, which glow orange when you supply them with about 90V DC or 60V AC. I thought it would be cool to make a portable device that lights up using one of these bulbs, since they're usually found in old, clunky, high-power electronics. I used an LT1073 DC/DC converter to step up 3.7V to 80V DC, and also a MCP73831 single-cell Lipo charge controller to recharge the battery. A surface-mount LED turns on while the battery is charging, and turns off when the battery has finished charging. As explained in my Instructable, I used a Qi wireless charging receiver to charge the battery, which means the device recharges when placed on any Qi-standard wireless charging pad.Even if you're not going to follow the Instructable, you can use this board to make a portable and rechargeable variable voltage supply. Simply make R4 a 0 ohm resistor (a short), R10 a 22k resistor, and replace R3 with a 10k potentiometer. This will give you a low-power adjustable supply that outputs between 65V and 95V at low currents (no greater than 3mA at 90V). The Instructable and the LT1073 datasheet will explain how to get a different range of output voltages.If you don't want to recharge a battery with this board, then remove U2, LED1, R13, R11, R5, R6, R7, R8, R9, R12, C4, D4, and Q2. In this configuration, the stepup converter should function properly while the voltage at VBAT is between 1.5V and 5V, although the maximum output voltage may be limited at lower input voltages.

Current features are:network time and date synchronization3 alarm clocksnotification every 1H, 30m, 15m, 10m, 5mvoice notification every hoursupport for human presence sensor (to turn off lamps)automatic and manual brightness adjustmentcontrol of 8 LEDs WS2812control via web interfaceAdditional information and firmware updates: https://vk.com/retromodding?w=wall-150130950_187 (Russian)List of components:DS3231M SOIC-16W - 1PCsESP-12E - 1PCs74HC595 SOIC-16 - 2PCsMAX1771ESA SOIC-8 - 1PCsMC34063AD, SC33063AD, NCV33063AVD SOIC-8 - 1PCsIRF740, IRF730, IRF840, TO-220-3 - 1PCs 220uH L_12x12mm_H6mm - 2PCsUS1M (BA159) 300V 1A SMA (DO-214AC) - 1PCs SS14, SS16, SS24, SS26, (1N5819) SMA (DO-214AC) - 1PCs0.1uF 0805 - 10PCs 3.3uF - 4.7uF 200V D10.0mm_P5.00mm - 1PCs220uF 16V D6.3mm_P2.50mm - 4PCs 1ом 0805 1206 - 8PCs1m 0805 - 6PCs18k 0805 - 1PCs470pF 0805 - 1PCs2k 0805 - 1PCs3.3k 0805 - 18PCsR PHOTO 5528 - 1PCs10k 0805 - 10PCs5.6k 0805 - 4PCs100uF 6.3V D6.3mm_P2.50mm - 4PCs 1k 0805 - 1PCs270k 0805 - 2PCsMMBTA42 SOT-23 - 15PCsMMBTA92 SOT-23 - 4PCsDFPlayer mini (mp3) - 1PCsIN-3 or any suitable - 1PCs or 2PCsСамоделки, arduino, модинг и etchttps://vk.com/retromodding

A cheap 555 TIMER controlled boost converter!

I would like to present to the public the project of my watches on VLI. The IV-6 indicators are used to indicate the time, and the IV-1 is used for the dividing point. To obtain -40 volts DC and ~ 4 volts AC, a converter based on the KF1211EU1 microcircuit, power switches IRF7313 is used. The transformer has one primary winding with a midpoint, two secondary windings with a midpoint. In the primary winding 2 x 6 turns, in the secondary 2 x 50 turns and 2 x 4 turns, the material of the ferrite ring is N87, dimensions 10x6x4. To control the grids and segments of the indicators, the “bottom” BC857 keys in the SOT323 package are used. Real-time microcircuit - DS3231 in SO-16 package, microcontroller - Atmega328P in TQFP32 package. Installation is performed on two double-sided boards, boards are connected by a board-to-board connector. Also, under the indicators, an optional installation of SK6805 addressable LEDs is provided. The device operates on any 5 volt power supply unit that has a USB connector.For the firmware of the microcontroller, the corresponding contacts are displayed. You can use Atmega88, Atmega168, Atmega328, the firmware takes about 8kb without LED backlighting. The firmware is written in C (avr-gcc), the code is available on GitHubWhen ordering, you need to choose a thickness of 1mm or 1.2mm and a panel from pcbway. !!!The circuit uses a rare microcircuit KF1211EU1 (made in Russia)!!!

Часы на вакуумно люминесцентных лампах из 90-хновый набор, раздельные платы rev3.4 ИВ-6 (IV-6)https://radiokot.ru/forum/viewtopic.php?f=25&t=86280http://kazus.ru/forums/showpost.php?p=1252533&postcount=12транс так:Т1,1 Т1,2 Т1,3 - это первичка 2 х по 6-7 витков проводом 0.3ммТ2,1 Т2,2 - это вторичка например 2 х по 45-50 витков, проводом 0.11мм.Т3,1 Т3,2 Т3,3 - это накал (1.2В) 2 х 1 виток проводом 0.3ммРезисторы в накал сразу ставьте не менее 10 Ом. Потом подбирайте.- Значения фьюзов в Hex: Low - E4. Остальные заводские.- на плате преобразователя на 3,3В для DS3231, но можно запитать DSку от 5В, если его нет. Просто поставить перемычку.

Часы на вакуумно люминесцентных лампах из 90-хновый набор, раздельные платы rev3.4 ИВ-6 (IV-6)https://radiokot.ru/forum/viewtopic.php?f=25&t=86280http://kazus.ru/forums/showpost.php?p=1252533&postcount=12транс так:Т1,1 Т1,2 Т1,3 - это первичка 2 х по 6-7 витков проводом 0.3ммТ2,1 Т2,2 - это вторичка например 2 х по 45-50 витков, проводом 0.11мм.Т3,1 Т3,2 Т3,3 - это накал (1.2В) 2 х 1 виток проводом 0.3ммРезисторы в накал сразу ставьте не менее 10 Ом. Потом подбирайте.- Значения фьюзов в Hex: Low - E4. Остальные заводские.- на плате преобразователя на 3,3В для DS3231, но можно запитать DSку от 5В, если его нет. Просто поставить перемычку.?

Magic Eye Tubes! I've designed a project to show off the Russian 6E1P magic eye tubes.All the components are on one circuit board which needs to be powered by a regulated 12V power supply. There's a microphone on the board to make the tube respond to sounds in the room, plus a sensitivity control and optional external audio input on the back panel for connection to an audio system speaker etc.Here it is in action on YouTube...

Nixie Thermometer / HygrometerTubes, sensors and a micro in a single designNixie Thermometer / HygrometerMeasuring temperature and humidity with a modern sensor and displaying the values on a retro display — it’s all described in this article. A calibrated, ‘digital’ sensor provides data via its I2C interface to a microcontroller driving four Nixie tubes and automatically alternating between temperature and humidity, while providing a nice fading effect. It’s a must-have!Component listResistorsR1-R4 = 22kOhmR5,R11,R12 = 10kOhmR7 = 47kOhmR8 = not usedR9 = 820kOhmR10 = 330(R13 = 5.6kOhmR14 = 470kOhmR15 = 4.7kOhmR16 = 150(CapacitorsC1-C4 = 100pF 2000V, 10%, radial, 5mm pitch (Farnell #1141797)C5-C8,C11,C12,C16-C18 = 100nF 50V, 20%, pitch 5mmC9, C10 = 33pF 100V, 5%, 2.54mm pitchC13 = 10μF 250V, 20%, radial, 5mm pitchC14,C15 = 100μF 25V, 20%, radial, 2.5mm pitchC19 = 470pF, 100V, 10%, 5mm pitchInductorsL1 = 330μH 1A, 20%, axial, D×L = 11×32.5 mm (0.43”×1.28”) max.SemiconductorsD1 = BYV26D2-D4 = 1N4001IC1-IC4 = 74141 or K155ID1 (?155??1)IC5 = PIC16F876-20/SPIC6 = 7805IC7 = MC34063IC8 = SHT21 I2C humidity and temperature sensor [1] (Farnell #1855468)T1,T2 = MPSA42T3 = IRF820MiscellaneousX1 = 6MHz quartz crystalV1 = IN-19A, Nixie Tube (symbols)V2-V4 = IN-14, Nixie Tube (numeric)K1 = 2-way PCB terminal block, 5mm pitchPCB # 110321-1As you can see from the following pictures, the project progressed nicely…This picture shows the top view, without the last tube, which I was waiting forMost of the components are very easy to solder on. The Nixie tubes are very hard to get into the holes, but I managed it so anyone should be able to do it! However, the Sensirion SHT21 chip is 3mm x 3mm and is ridiculously hard to get on – this needs specialist attention and a steady hand. You can see the sensor in place in the picture below. Be sure to read the data sheet correctly, and don’t solder it on the wrong way (I *may* have done this!)The tubes eventually turned up – I was more excited than I probably should have been ??Finally the final tube came and was soldered into place – a really lovely display. The sensor has to be at least 15cms from the circuit board, otherwise you get spurious results from the heat of the components on the boardI built this case to house it, Im very very pleased with it