2 layers116.3 × 76.3 mm
4 layers110 × 75 mm
PI Card v2
lbrosnan1/twoboElectrical1Stores the KiCAD PCB files for Twobo
- Size
- 110 × 75 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 31
- Nets
- 76
- Pads
- 293
- Tracks, vias
- 1,021, 16
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 7 Dec 2025
- Updated
- 21 Sep 2026
Overview
PI Card v2 is an open-source printed circuit board by lbrosnan1, from the lbrosnan1/twoboElectrical repository on GitHub. It is a 4-layer board of 110 × 75 mm with 31 parts on 76 nets, routed with 1,021 tracks and 16 vias.
It is built around the SMAJ5.0A. Its parts include 12 connectors, 5 resistors, 4 diodes, 2 switches and 1 capacitor.
Main components
1Parts
31| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | Conn_01x02 | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J4, J7, J8, J9, J11 |
| 4 | MountingHole | MountingHole:MountingHole_2.2mm_M2 | H1, H2, H3, H4 |
| 3 | LED | LED_THT:LED_D5.0mm | D1, D2, D3 |
| 2 | 3.3k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R3 |
| 2 | 4.7k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4, R5 |
| 2 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J10, J12 |
| 2 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3, J6 |
| 2 | LOGO | LOGO | G***, G*** |
| 1 | 330 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | 470u | Capacitor_THT:CP_Radial_D10.0mm_P5.00mm | C1 |
| 1 | Conn_02x20_Odd_Even | Connector_PinSocket_2.54mm:PinSocket_2x20_P2.54mm_Vertical | J1 |
| 1 | Conn_02x20_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x20_P2.54mm_Vertical | J2 |
| 1 | Conn_02x40_Odd_Even | Samtec Custom:Samtec_HLE-140-02-L-DV-PE_2x40_P2.54mm_Horizontal | J5 |
| 1 | Fuse | Custom:Fuseholder_Littelfuse_Nano2_154x_3D | F1 |
| 1 | SMAJ5.0A | Diode_SMD:D_SMA_Handsoldering | D4 |
| 1 | SW_Nidec_CAS-120A1 | Button_Switch_SMD:Nidec_Copal_CAS-120A | SW2 |
| 1 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1 |
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Questions
How big is the PI Card v2 PCB?
It measures 110 × 75 mm and has 4 copper layers, 1.6 mm thick.
What parts does the PI Card v2 use?
31 parts, built around the SMAJ5.0A. 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 PI Card v2 KiCad files?
From the lbrosnan1/twoboElectrical repository on GitHub, at the commit this page was made from: the board is twoboPiCard/PI_Card v2.kicad_pcb and its schematic twoboLightBeacon/470nmLEDBeaconSegment/470nmLEDBeaconSegment.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PI Card v2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask lbrosnan1 before reusing the design.