2 layers327.9 × 139 mm
Coco2
baldengineer/bit-preserve
Project for capturing vintage, classic, aka old computer schematics in KiCad.
147 parts446
4 layers36.8 × 51 mm
LED Chaser
- Size
- 36.8 × 51 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 18
- Nets
- 18
- Pads
- 55
- Tracks, vias
- 174, 0
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 22 Jan 2026
- Updated
- 22 Jan 2026
Overview
Led is an open-source printed circuit board by PrinceYadav78, from the PrinceYadav78/LED-Chaser repository on GitHub, published under the MIT licence. It is a 4-layer board of 36.8 × 51 mm with 18 parts on 18 nets, routed with 174 tracks and 0 vias.
It is built around the NE555P. Its parts include 10 diodes, 2 capacitors, 2 resistors, 2 ICs and 2 connectors.
Main components
1README
README.mdDesignined in KiCAD, and FreeCAD
Schematic
PCB
bom.csv
Cart
Parts
18| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | LED | LED_THT:LED_D5.0mm | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10 |
| 2 | R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2 |
| 1 | 4017 | Package_DIP:DIP-16_W7.62mm | U2 |
| 1 | C | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C1 |
| 1 | C_Polarized | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C2 |
| 1 | Conn_01x01_Pin | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J2 |
| 1 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | NE555P | Package_DIP:DIP-8_W7.62mm | U1 |
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Questions
How big is the Led PCB?
It measures 36.8 × 51 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Led use?
18 parts, built around the 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 Led KiCad files?
From the PrinceYadav78/LED-Chaser repository on GitHub, at the commit this page was made from: the board is PCB/led.kicad_pcb and its schematic PCB/led.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Led 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).