2 layers23.4 × 0 mm
RGB Ringlicht OhneVorwiderstände
Darexsh/RGB-Ringlight
Discrete RGB LED chaser ring powered by an NE555 astable clock and CD4017 counter. 24 LEDs arranged in a circular RGB sequence with variable chase speed.
32 partsMIT
2 layers29.2 × 1.5 mm
RGB Ringlight
Darexsh/RGB-RinglightDiscrete RGB LED chaser ring powered by an NE555 astable clock and CD4017 counter. 24 LEDs arranged in a circular RGB sequence with variable chase speed. A hands-on electronics project showcasing classic timer logic and LED sequencing.
- Size
- 29.2 × 1.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 57
- Nets
- 43
- Pads
- 131
- Tracks, vias
- 177, 8
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 12 Dec 2025
- Updated
- 6 Nov 2026
Overview
RGB Ringlight is an open-source printed circuit board by Darexsh, from the Darexsh/RGB-Ringlight repository on GitHub, published under the MIT licence. It is a 2-layer board of 29.2 × 1.5 mm with 57 parts on 43 nets, routed with 177 tracks and 8 vias.
It is built around the CD4017BE and NE555P. Its parts include 25 resistors, 24 diodes, 2 ICs, 1 capacitor and 1 connector. It belongs with the lEDs and displays boards of this library.
Main components
2
CD4017BE
DIP-16-55℃~+125℃ 1 135ns 3V~18V 5.5MHz 500mW Asynchronous CD4000 Divide-by-10 Reset function、Cascade counter、Static operation Rising Edge Synchronous Up Counter DIP-16 Counters, Dividers ROHSTexas InstrumentsCounters, Dividers
NE555P
DIP-80℃~+70℃ 100kHz 10mA 4.5V~16V DIP-8 555 Timers / Counters ROHSTexas InstrumentsTimers / Counters
README
README.md🌈 RGB Ringlight – LED Chaser
🟥🟩🟦 RGB LED Chaser using 3 mm LEDs
Powered by NE555, CD4017, and a speed control potentiometer
Check out my bot in Telegram for an easy project overview.
If you want to support more projects, you can leave a small donation for a coffee.
✨ Authors
| Name | GitHub | Role | Contact | Contributions |
|---|---|---|---|---|
| Darexsh by Daniel Sichler | Link | Hardware & Schematic 🖥️🛠️ | Concept, Layout, Integration |
🚀 About the Project
This project is an RGB ring light with a chaser animation, built entirely from discrete electronics. The core consists of:
- NE555: Clock Generator
- CD4017: Decade Counter
- 24 LEDs: Positioned in Circle shape with with alternatingly positioned red, green and blue LEDs
The chase speed can be adjusted using a 10 kΩ potentiometer. Power is supplied through a 9 V barrel jack (5.5 mm).
🛠️ How It Works
🔁 Main Function
- The NE555 operates in astable mode, generating a variable clock signal.
- The CD4017 advances one output pin per clock pulse.
- Each LED lights up sequentially → creating the classic LED chaser effect.
💡 LED Layout
The ring contains 24 LEDs total:
- 🔴 D1–D8: Red
- 🟢 D9–D16: Green
- 🔵 D17–D24: Blue
🎚️ Speed Control
- A 10 kΩ potentiometer (RV1) adjusts the NE555 frequency.
🔌 Power Supply
- 9 V DC input
- Supplied through a 5.5 mm barrel jack
📋 Bill of Materials (BOM)
| Part | Value / Type |
|---|---|
| IC1 | CD4017BE |
| IC2 | NE555P |
| LEDs | 24× 3 mm LEDs (8× red, 8× green, 8× blue) |
| R1–R24 | 680 Ω |
| R25 | 10 kΩ |
| RV1 | 10 kΩ potentiometer |
| C1 | 10 µF / 25 V |
| J1 | DC barrel jack 5.5 mm (with switch) |
| J2 | Socket for CD4017 |
| J3 | Socket for NE555 |
| H1 | Mounting hole |
📜 License
This project is licensed under the MIT License.
This license applies to the updater application code in this repository. Upstream patch and app projects remain under their own licenses and notice terms.
Copyright (c) 2026 Darexsh by Daniel Sichler
You are free to use, copy, modify, merge, publish, distribute, sublicense, and sell this software under the terms of the MIT License.
When redistributing this project, you must include the original copyright notice and the MIT License permission notice.
Developer: Darexsh by Daniel Sichler.
The full license is available in the LICENSE file.
Created with ❤️ by Daniel Sichler
Parts
57| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | 680R | Resistor_SMD:R_0603_1608Metric | R1, R2, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23 +8 |
| 8 | LED_BLUE | LED_THT:LED_D3.0mm | D17, D18, D19, D20, D21, D22, D23, D24 |
| 8 | LED_GREEN | LED_THT:LED_D3.0mm | D9, D10, D11, D12, D13, D14, D15, D16 |
| 8 | LED_RED | LED_THT:LED_D3.0mm | D1, D2, D3, D4, D5, D6, D7, D8 |
| 2 | LOGO | ProjectFootprints:logo | G***, G*** |
| 1 | 10k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R25 |
| 1 | 10k_Poti | Potentiometer_THT:Potentiometer_Runtron_RM-065_Vertical | RV1 |
| 1 | 10uF/25V | Capacitor_THT:CP_Radial_D4.0mm_P2.00mm | C1 |
| 1 | Barrel_Jack_Switch | Connector_BarrelJack:BarrelJack_Horizontal | J1 |
| 1 | CD4017BE | ProjectFootprints:CD4017BE | IC1 |
| 1 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1 |
| 1 | NE555P | ProjectFootprints:NE555P | IC2 |
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Questions
How big is the RGB Ringlight PCB?
It measures 29.2 × 1.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the RGB Ringlight use?
57 parts, built around the CD4017BE and NE555P. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the RGB Ringlight KiCad files?
From the Darexsh/RGB-Ringlight repository on GitHub, at the commit this page was made from: the board is Hardware/Project.kicad_pcb and its schematic Hardware/Project.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the RGB Ringlight design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).