4 layers73.1 × 97.6 mm
Ulp daughterboard
Ismael034/ulp_daughterboard
KiCad project files for a hardware CTF challenge used during the 2026 ULP CTF. The board is meant to be used with the ch32v203-dev development board.
65 parts3
2 layers51.9 × 45.4 mm
New ki cad
Sparkshiva007/LED-chaser-PCBA simple LED chaser circuit using a 555 timer and CD4017 IC, designed in KiCad. It lights up LEDs in sequence like a running light effect. Ideal for beginners learning circuit design, sequencing logic, and PCB layout using KiCad.
- Size
- 51.9 × 45.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 28
- Nets
- 28
- Pads
- 78
- Tracks, vias
- 160, 0
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 18 Jul 2025
- Updated
- 19 Jul 2025
Overview
New ki cad is an open-source printed circuit board by Sparkshiva007, from the Sparkshiva007/LED-chaser-PCB repository on GitHub, published under the MIT licence. It is a 2-layer board of 51.9 × 45.4 mm with 28 parts on 28 nets, routed with 160 tracks and 0 vias.
It is built around the CD4017BE and NE555P. Its parts include 11 resistors, 10 diodes, 2 capacitors and 2 ICs.
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.mdLED Chaser Circuit (555 Timer + CD4017) – KiCad Project
A classic LED chaser circuit designed using KiCad, powered by a 555 timer and CD4017 decade counter IC. It lights up a series of LEDs one-by-one in sequence, creating a "running light" or "Knight Rider" effect.
🎯 What This Project Does
- Generates a continuous sequence of LED flashes (like chasing lights)
- Uses simple and easily available ICs: 555 Timer & CD4017
- Adjustable speed using a timing resistor/capacitor combo
- Designed as a KiCad project with proper PCB layout and schematic
- Great for learning KiCad, PCB design, or digital electronics
📦 Features
- 10 output LEDs (can be reduced as needed)
- 555 Timer in astable mode for clock generation
- CD4017 Decade Counter to handle sequencing
- Clean PCB layout with labeled connectors and components
- Optional trimmer resistor to control LED chasing speed
🧰 Components Used
| Component | Quantity |
|---|---|
| 555 Timer IC | 1 |
| CD4017 IC | 1 |
| LEDs | 10 |
| 1kΩ Resistors | 10 |
| 10kΩ potentiometer | 1 |
| 100nF Capacitor | 1 |
| 10µF Capacitor | 1 |
| Power Source (5V–9V) | 1 |
🚀 How to Use
- Open the project in KiCad 7.x or newer.
- View/edit the schematic in the
.kicad_schfile. - Open the
.kicad_pcbfile to view or modify the PCB layout. - Export Gerber files if you want to fabricate the board.
- Assemble the board using through-hole components.
- Power it up and enjoy the chasing LED effect!
🔧 Tuning the Speed
You can control how fast the LEDs chase using the 10k potentiometer connected to the 555 timer. The values used are:
💡 Educational Value
This is a beginner-friendly project that introduces:
- Basic timer circuits
- Counter IC operation
- Sequential logic
- KiCad schematic and PCB design
Perfect for hobbyists, students, or anyone getting started with PCB design!
Credits
Circuit concept inspired by the classic LED chaser project found in many electronics books. This version was fully re-created in KiCad by Shiva Projects for educational use.
📄 License
Open-source hardware. You are free to modify, improve, or manufacture the board for personal or educational use.
Parts
28| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | LED | LED_THT:LED_D3.0mm | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10 |
| 9 | 1k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R3, R4, R5, R6, R7, R8, R9, R10 |
| 1 | 10k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | RV1 |
| 1 | 10k | Potentiometer_THT:Potentiometer_Bourns_3339P_Vertical | R11 |
| 1 | 10nf | Capacitor_THT:C_Disc_D9.0mm_W5.0mm_P5.00mm | C2 |
| 1 | 10u | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C1 |
| 1 | 1k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Vertical | R2 |
| 1 | Battery | Connector_BarrelJack:BarrelJack_CUI_PJ-063AH_Horizontal | BT1 |
| 1 | CD4017BE | Package_DIP:DIP-16_W7.62mm_LongPads | U3 |
| 1 | LOGO | shiva logo:mine | G*** |
| 1 | NE555P | Package_DIP:DIP-8_W7.62mm | U2 |
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Questions
How big is the New ki cad PCB?
It measures 51.9 × 45.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the New ki cad use?
28 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 New ki cad KiCad files?
From the Sparkshiva007/LED-chaser-PCB repository on GitHub, at the commit this page was made from: the board is new ki cad.kicad_pcb and its schematic new ki cad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the New ki cad 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).