SpiderBlink
Sudo-Aju·SpiderBlink·PCB/Source/Spider.kicad_pcb
About the SpiderBlink PCB
SpiderBlink is an open source PCB design by Sudo-Aju, published on GitHub. It is a 2-layer board measuring 39.6 × 41.4 mm, with 20 components from 9 distinct parts.
Other key parts include the NE555P and CD4017B. By type, the board carries 10 diodes, 3 test points, 2 ICs, 2 capacitors and 2 resistors.
From the project
A blinky board but is shape of a spiderweb
A Tiny LED Blinker in Shape of a Spiderweb
SpiderBlink is a 555 LED chaser board that blinks 10 LEDs in a variable speed sequence using a NE555P timer IC and a CD4017 decade counter. I built this as a beginner PCB project to learn schematic design, PCB routing, and hands-on soldering.
I wanted to dvelve deeper into embedded electronics, so thought this might be the chance for me to understand more about ICs, Timers and Oscillators

Main components on the SpiderBlink
SpiderBlink bill of materials (BOM)
20 components, 9 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | NE555P Texas Instruments | DIP-8_W7.62mm | U1 |
| 1 | CD4017B 4017 Texas Instruments | N16 | U2 |
| 1 | 3362P-1-503LF 50k Bourns | TRIM_3362P-1-102 | RV1 |
| 3 | TestPoint | PinSocket_1x01_P2.54mm_Vertical | TP1, TP2, TP3 |
| 10 | WP7113ID LED Kingbright | LED_D3.0mm | D1, D2, D3, D4, D5, D6, D7, D8 +2 |
| 1 | GRM188R71H103KA01D 0.01 uF Murata | CP_Radial_D5.0mm_P2.00mm | C1 |
| 1 | GRM188R60J105KA01D 1 uF Murata | CP_Radial_D5.0mm_P2.00mm | C2 |
| 1 | CFR-25JB-52-1K 1K Yageo | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 1 | CFR-25JB-52-470R 470 Yageo | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2 |
SpiderBlink design files
The KiCad project lives in the Sudo-Aju/SpiderBlink repository on GitHub; these links point at the commit this page was built from.
- LayoutPCB/Source/Spider.kicad_pcb
- SchematicPCB/Source/Spider.kicad_sch
- BOMPCB/BOM.csv
SpiderBlink: common questions
How big is the SpiderBlink PCB?
The SpiderBlink measures 39.6 × 41.4 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the SpiderBlink?
20 components, from 9 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the SpiderBlink design files?
From the Sudo-Aju/SpiderBlink repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the SpiderBlink design in my own project?
The repository has no license, so all rights stay with Sudo-Aju. Use it as a reference, and ask the author before reusing the design.