2 layers125 × 125 mm
2 layers52.3 × 57.6 mm
Class2
pknodle/LED_circles- Size
- 52.3 × 57.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 15
- Nets
- 9
- Pads
- 30
- Tracks, vias
- 15, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 9 Jun 2025
- Updated
- 20 Sep 2026
Overview
Class2 is an open-source printed circuit board by pknodle, from the pknodle/LED_circles repository on GitHub. It is a 2-layer board of 52.3 × 57.6 mm with 15 parts on 9 nets, routed with 15 tracks and 0 vias.
Its parts include 7 resistors, 7 diodes and 1 connector.
Parts
15| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 220 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R4, R5, R6, R7 |
| 7 | LED | LED_THT:LED_D5.0mm | D1, D2, D3, D4, D5, D6, D7 |
| 1 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Horizontal | J1 |
Questions
How big is the Class2 PCB?
It measures 52.3 × 57.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Class2 use?
15 parts. 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 Class2 KiCad files?
From the pknodle/LED_circles repository on GitHub, at the commit this page was made from: the board is 01-Intro/class2/class2/class2.kicad_pcb and its schematic 01-Intro/class1/class1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Class2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask pknodle before reusing the design.
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