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 layers98.2 × 98.1 mm
I made a clover shaped pcb-board with LEDs
- Size
- 98.2 × 98.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 25
- Nets
- 18
- Pads
- 58
- Tracks, vias
- 93, 1
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 12 Apr 2026
- Updated
- 6 May 2026
Overview
Blinky is an open-source printed circuit board by Almo-ond-tech, from the Almo-ond-tech/Flower-Blinky repository on GitHub. It is a 2-layer board of 98.2 × 98.1 mm with 25 parts on 18 nets, routed with 93 tracks and 1 via.
It is built around the CD4017BE and NE555P. Its parts include 10 diodes, 2 capacitors, 2 resistors, 2 ICs and 2 connectors.
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.mdI made a 4 leafed clover shaped 555 Chaser led-board. It has 10 LEDs and was made using kicad
Parts
25| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | LED | LED_THT:LED_D3.0mm | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10 |
| 2 | LOGO | imgsfootprint:usagi | G***, G*** |
| 2 | LOGO | imgsfootprint:cloverbow | G***, G*** |
| 2 | LOGO | imgsfootprint:wingslogo | G***, G*** |
| 1 | 0.01uF | Capacitor_THT:C_Disc_D9.0mm_W2.5mm_P5.00mm | C1 |
| 1 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2 |
| 1 | 1uF | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C2 |
| 1 | 470 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3 |
| 1 | 50k | Potentiometer_THT:Potentiometer_Vishay_T93YA_Vertical | RV1 |
| 1 | CD4017BE | footprints:N16 | U2 |
| 1 | Conn_01x01_Socket | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J2 |
| 1 | Conn_01x02_Socket | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | NE555P | Package_DIP:DIP-8_W7.62mm | U1 |
Similar boards
- 2 layers160 × 25 mm
Kitt sweeper
confusedCoyote/PCB-15cm-ruler
A Printed Circuit Board ruler with some helpful hints
26 partsGPL-3.0 - 2 layers29.2 × 1.5 mm
RGB Ringlight
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.
57 partsMIT - 2 layers76.2 × 41 mm
- 2 layers93.3 × 127.6 mm
LogikKatze
Lichtwerkstatt/ElectronicTinkerStuff
A little Repository with all our small electronic projects
33 partsMIT - 2 layers100 × 100 mm
Tach v1.0
maheen-ahmed1/OptoTACH
Precision non-contact optical tachometer (0–9999 RPM/RPS) built entirely with discrete CMOS logic & 555 timers; no microcontroller, no firmware. Includes KiCad EDA, 3D model, Python simulation, and bench validation.
99 parts - 2 layers61 × 71 mm
- 2 layers51.9 × 45.4 mm
New ki cad
Sparkshiva007/LED-chaser-PCB
A 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.
28 partsMIT
Questions
How big is the Blinky PCB?
It measures 98.2 × 98.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Blinky use?
25 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 Blinky KiCad files?
From the Almo-ond-tech/Flower-Blinky repository on GitHub, at the commit this page was made from: the board is blinky.kicad_pcb and its schematic blinky.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Blinky design in my own project?
Its repository states no licence, so its author keeps all rights: ask Almo-ond-tech before reusing the design.