2 layers20.5 × 24.8 mm
2 layers61.9 × 44 mm
Pathfinder
LizOnAir/Pathfinder- Size
- 61.9 × 44 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 8
- Nets
- 15
- Pads
- 51
- Tracks, vias
- 25, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 20 Apr 2026
- Updated
- 19 Jun 2026
Overview
Pathfinder is an open-source printed circuit board by LizOnAir, from the LizOnAir/Pathfinder repository on GitHub. It is a 2-layer board of 61.9 × 44 mm with 8 parts on 15 nets, routed with 25 tracks and 0 vias.
Its parts include 3 diodes, 3 switches, 1 resistor and 1 IC. It belongs with the RP2040 boards of this library.
README
README.mdPathfinder
I want to learn more on programming instead of just doing PCB design and soldering, so is started with this project to explore what can I do with buttons and LEDs.
Feature
A neatly designed PCB, with 3 buttons and 3 LEDs.
PCB
Schematic
Layout
Firmware
I added some secret function to the board.
BOM
Here should be everything you need:
- 1x RP2040
- 1x PCB
- 3x LEDs
- 1x 470 resistor
Parts
8| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | LED | LED_THT:LED_D5.0mm | D1, D2, D3 |
| 3 | SW_Push | Button_Switch_Keyboard:MX CHERRY SWITCH | SW1, SW2, SW3 |
| 1 | 470 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3 |
| 1 | XIAO-RP2040-DIP | OPL_Kicad_Library-master:XIAO-RP2040-DIP | U1 |
Questions
How big is the Pathfinder PCB?
It measures 61.9 × 44 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pathfinder use?
8 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 Pathfinder KiCad files?
From the LizOnAir/Pathfinder repository on GitHub, at the commit this page was made from: the board is PCB/Pathfinder.kicad_pcb and its schematic PCB/Pathfinder.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pathfinder design in my own project?
Its repository states no licence, so its author keeps all rights: ask LizOnAir before reusing the design.
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