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Lixies recreate the layered numeral look of Nixie tubes with etched acrylic and addressable LEDs—not gas-discharge tubes or high-voltage drivers. They are easier to connect to a microcontroller, but still require a compatible controller, a suitable power supply and attention to wiring, brightness and clock accuracy.
What a Lixie is—and how it makes digits glow
A Lixie is an LED-based display made from a stack of clear acrylic sheets. Each sheet carries an etched numeral; LEDs at the edge send light through the acrylic, and the etched marks scatter it so the chosen numeral becomes visible. The layered construction gives the display depth, but it is an LED display rather than a gas-filled cold-cathode tube. IEEE Spectrum explains the light-guiding effect as total internal reflection and notes that typically one sheet is lit at a time.
The creator’s hardware repository describes a build with ten clear acrylic digit planes, a black acrylic top cover, brackets, a PCB, 20 WS2812B LEDs, a 1000 μF / 6.3 V capacitor, and M2.5 bolts and nuts. It also includes PCB design files, laser-cut layouts, CAD files for accessories and documentation. These materials describe a DIY build path; they do not establish that a preassembled display is currently available. See the Lixie hardware and documentation repository.
Why Lixies are easier to control than Nixie tubes
A conventional Nixie tube needs a high-voltage driver circuit. A Lixie uses low-voltage addressable WS2812B LEDs and a data signal, making its control approach familiar to anyone who has used addressable pixels. The trade-off is that a Lixie does not operate on its own: it needs an external compatible microcontroller and software. Hackster’s overview of the design and the creator’s guide describe Arduino/AVR and ESP8266-family support.
#1 Best Overall
- DIY Soldering Clock Kit: 4 digital green LED display that can be set for clock, time, temperature, date, and week display with 3 kinds of display modes: time-temperature; time-date-week; time-temperature-date-week
- Time Display Options: 12/24H time display mode with whole daytime prompt function, default 7:00-21:00, includes clock correction function to improve clock accuracy
- Advanced Features: The clock can set 3-way alarm with Monday to Friday work mode option, temperature display in Celsius or Fahrenheit, three built-in music options (To Alice, Ode to Joy, Spanish Matador), adjustable brightness with automatic brightness setting
- High-Precision Components: Single chip microcomputer IAP15W413AS or STC8G1K17, Clock IC DS1302, 5ppm high-precision crystal oscillator, plus time error correction function for high-precision timekeeping
- Educational Learning Tool: Package includes paper instructions and web page with step-by-step soldering pictures and videos, low soldering difficulty using direct plug components, widely used in schools to help students learn basic mechanical and electronic skills through circuit analysis and welding training
In a 2016 article, the Arduino Team quoted creator Connor Nishijima: “The Lixie has extremely simple setup, just connect the 5V, GND, and DIN pads to an Arduino and use the Lixie library to write a digit to the display! That’s it! No HV switching, PCB footprint, or worries!” The connection is simpler than designing a Nixie driver, but you still need to confirm your specific board’s logic levels and current capacity. Read the Arduino Team’s 2016 coverage.
| Consideration | Lixie | Conventional Nixie |
|---|---|---|
| Display mechanism | Etched acrylic planes lit by addressable LEDs | Gas-discharge tube with layered numeral electrodes |
| Driving electronics | Low-voltage LED power and a data signal; requires a compatible microcontroller | Requires a high-voltage driver circuit |
| Control options | RGB LED control through the Lixie library and compatible controllers | Tube-specific high-voltage driving; no Lixie LED library applies |
| Visual character | Layered acrylic with controllable LED color | The actual glow of a gas-discharge tube |
| Build or sourcing | Creator documentation supports a DIY build; current preassembled availability is not established by the cited sources | Requires sourcing tubes and suitable high-voltage circuitry |
Choose a Lixie for a Nixie-inspired look with LED control and more approachable electronics. Choose a genuine Nixie if the actual gas-discharge display is essential. They are visual alternatives, not electrically or optically identical devices.
Rank #2
- Main chip: AT89C205; LED tube: 0.56 Inch 4 Bits
- AT89C2051 Digital LED Display Electronic Clock DIY Kit
- 0.56 Inch 4 Bits Electronic Clock Production Suite DIY Kit
Plan the controller, wiring and power
Connections and daisy chaining
The creator’s guide specifies three basic connections: 5V to 5V, ground to ground, and a microcontroller digital output to DIN. To chain displays, connect one display’s DOUT to the next display’s DIN. Check the current documentation and your board’s electrical requirements before wiring; a familiar three-wire interface does not mean every controller or power arrangement is interchangeable. The Lixie guide documents supported controllers and connections.
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Budget for LED current
The guide lists 20 WS2812B LEDs per digit and estimates that a full-white numeral could draw as much as 120 mA per digit. It also warns that lighting all 20 LEDs at full white for effects could require substantially more. Those are calculations in the guide, not independent measurements; actual current varies with color, brightness, effects and hardware revision. The guide includes a software power-limit function, but software limits do not replace an appropriately rated supply. Check its current power guidance before building.
Rank #3
- 【Multi-Function Digital Clock】Displays time, temperature, and date clearly on bright 4-digit LED tubes. Features multiple melody alarms and an adjustable brightness control for comfortable viewing day or night.
- 【Learn Soldering the Fun Way】Perfect DIY soldering practice kit for adult and electronics hobbyists. Build a fully functional digital clock while improving your soldering skills — ideal for school STEM projects or learning.
- 【Compact & Practical Design】(77x22x34mm) fits neatly on any desk, nightstand, or workspace. Once assembled, it becomes a fully functional clock ready for daily home or office use.
- 【Installation Manual】: The package comes with a paper instruction manual, introduce the soldering method of each component.
- 【Great Gift & Teaching Tool】Ideal for electronics enthusiasts, teachers, and parents looking for a hands-on learning activity. Also makes a thoughtful and unique gift for tech lovers and DIYers.
Account for voltage drop in longer chains
Longer LED chains can experience voltage drop, which may cause dimming or color shifts. The creator’s guide recommends feeding power at both ends for longer chains. Treat that as design guidance rather than a guarantee: results depend on the particular display, supply, cable, wiring and enclosure.
What to know before making a Lixie clock
A Lixie can serve as a clock display, but the display itself does not keep time. In a February 2018 report, IEEE Spectrum’s David Schneider described a four-digit clock built with an Arduino Nano. He set the Lixie library’s maximum current to 400 milliamps to run it from a computer USB port, and reported that his clock ran about 0.3 percent fast, attributing the drift to the Nano’s ceramic resonator. He noted that a real-time clock or the creator’s ESP8266/NTP example could improve timekeeping. That drift figure describes Schneider’s particular build, not all Arduino Nano clocks or Lixies. Read the IEEE Spectrum clock-build report.
Rank #4
- Multi-functional Electronic Clock: This 24-hour clock soldering kit is equipped with a 6-digit digital tube, accurately displaying hours, minutes, seconds, and date/day of the week. It features an internal alarm system and dual modes of countdown and countup, meeting diverse time planning needs
- Dual-mode Timing: This electronic clock kit supports both countdown and countup modes. You can choose from four different countdown intervals of 5 minutes, 15 minutes, 30 minutes, and 60 minutes, or record the duration of tasks (such as the time taken to complete a test). Through visual time management, it effectively enhances focus in work and study, helping to establish an efficient time perception system
- Colorful Lighting Effects: This electronic clock kit is equipped with 8 LED diodes, presenting multiple colors including green, blue, yellow, purple, and red. It also supports five levels of brightness adjustment and five levels of speed adjustment, creating amazing lighting effects
- DIY Soldering Kit: It adopts a modular circuit design, with all components requiring self-soldering and assembly. The PCB board is clearly marked with component symbols and functions, and is combined with a reinforced acrylic shell. This not only consolidates basic electronic knowledge but also enhances practical soldering skills. It is recommended for those with basic soldering experience
- Versatile Present for Multiple Scenarios: As a better timekeeping tool than a smartphone, it is suitable for students to cultivate self-discipline, helps the elderly manage their daily routines, and meets the DIY needs of electronics enthusiasts. From basic timing to soldering practice, it combines practical value with educational significance, making it an ideal creative present for all age groups
Price and availability: old coverage is not a current listing
Hackster and IEEE Spectrum reported a price of US$38 per Lixie in coverage from around 2018. That is historical, not a verified current price. The cited sources do not establish present inventory, seller status or current availability of a preassembled unit. Hackster’s coverage and IEEE Spectrum’s clock article provide the historical context.
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Best Value
- ⏰【Build Your Own RGB Digital Clock】: Build a functional 4-digit LED clock through hands-on soldering and electronics soldering. The finished clock displays the current time, date, and temperature in real time and can be used as a practical desktop accessory. A creative STEM gift for teens, students, DIY enthusiasts, and electronics lovers.
- ⏰【RGB Display & 12H/24H Time Format】: Switch freely between 12-hour and 24-hour formats and choose between ℃ and ℉ temperature display. The 1.36-inch digital display remains easy to read from a distance, while colorful RGB LEDs let you select your preferred color or use random color changes for a dynamic desktop display.
- ⏰【3 Alarm Modes & Practical Functions】: Set up to 3 groups of alarms with flexible schedules, including every day, Monday–Friday, or Monday–Saturday. The clock also features automatic or manual brightness adjustment, power-off memory, alarm on/off control, and 4 selectable alarm melodies. Two adjustment buttons make setting the clock and alarms more convenient.
- ⏰【Hands-On Soldering & STEM Learning】: The LED board comes pre-soldered, so you only need to solder the remaining electronic components and connections. Clearly labeled component locations and connection points on the PCB help guide the assembly process. Ideal for school STEM projects, home learning, and hands-on electronics practice. Please note that basic electronics knowledge, soldering skills, and hands-on ability are required.
- ⏰【Step-by-Step Installation Manual】: Includes a paper instruction manual with clear illustrations and instructions for the soldering and assembly process. Scan the QR code to access the PDF installation guide, or find the User Manual under Amazon's Product Guides and Documents for additional reference.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
