2 layers75 × 50 mm
2 layers242.3 × 99.8 mm
Transporter
carrefinho/transporter2Transporter is a low-profile V4N4G0N type keyboard with exploded bars, built around the $0.5 WCH CH32X035 MCU.
- Size
- 242.3 × 99.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 107
- Nets
- 86
- Pads
- 680
- Tracks, vias
- 697, 134
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 16 Oct 2026
- Updated
- 19 Oct 2026
Overview
Transporter is an open-source printed circuit board by carrefinho, from the carrefinho/transporter repository on GitHub, published under the CERN-OHL-P-2.0 licence. It is a 2-layer board of 242.3 × 99.8 mm with 107 parts on 86 nets, routed with 697 tracks and 134 vias.
It is built around the CH32X035G8R6 and BAV70. Its parts include 52 switches, 27 diodes, 4 resistors, 2 capacitors and 1 IC.
Main components
2README
README.md
Transporter
Transporter is a low-profile V4N4G0N type keyboard with exploded bars, built around the $0.5 WCH CH32X035 MCU.
Files
transporter-pcb/: KiCad projectcase/facade/: Facade v4 case files
Firmware
Find the ZMK module at transporter-zmk-module
License
Parts
107| Qty | Value | Footprint | References |
|---|---|---|---|
| 26 | BAV70 | Package_TO_SOT_SMD:SOT-23 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +10 |
| 7 | MountingHole_Pad_MP | MountingHole:MountingHole_2.2mm_M2_Pad_TopBottom | H1, H2, H3, H4, H5, H6, H7 |
| 4 | Choc | Custom:SW_choc_v1v2_HS_19mmSpc | SW48, SW49, SW50, SW51 |
| 2 | 5k1 | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 2 | Alt | Custom:SW_choc_v1v2_HS_19mmSpc | SW44, SW45 |
| 2 | Ctrl | Custom:SW_choc_v1v2_HS_19mmSpc | SW43, SW47 |
| 2 | Shift | Custom:SW_choc_v1v2_HS_19mmSpc | SW31, SW42 |
| 1 | , | Custom:SW_choc_v1v2_HS_19mmSpc | SW39 |
| 1 | . | Custom:SW_choc_v1v2_HS_19mmSpc | SW40 |
| 1 | 1 | Custom:SW_choc_v1v2_HS_19mmSpc | SW1 |
| 1 | 100n | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 2 | Custom:SW_choc_v1v2_HS_19mmSpc | SW2 |
| 1 | 3 | Custom:SW_choc_v1v2_HS_19mmSpc | SW3 |
| 1 | 4 | Custom:SW_choc_v1v2_HS_19mmSpc | SW4 |
| 1 | 4u7 | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 5 | Custom:SW_choc_v1v2_HS_19mmSpc | SW5 |
| 1 | 5V | TestPoint:TestPoint_Pad_D2.0mm | TP4 |
| 1 | 6 | Custom:SW_choc_v1v2_HS_19mmSpc | SW6 |
| 1 | : | Custom:SW_choc_v1v2_HS_19mmSpc | SW29 |
| 1 | ? | Custom:SW_choc_v1v2_HS_19mmSpc | SW41 |
| 1 | A | Custom:SW_choc_v1v2_HS_19mmSpc | SW20 |
| 1 | B | Custom:SW_choc_v1v2_HS_19mmSpc | SW36 |
| 1 | BOOT | Button_Switch_SMD:SW_SPST_TS-1088-xR020 | S1 |
| 1 | Backspace | Custom:SW_choc_v1v2_HS_19mmSpc | SW18 |
| 1 | C | Custom:SW_choc_v1v2_HS_19mmSpc | SW34 |
| 1 | CH32X035G8R6 | Package_SO:QSOP-28_3.9x9.9mm_P0.635mm | U1 |
| 1 | D | Custom:SW_choc_v1v2_HS_19mmSpc | SW22 |
| 1 | E | Custom:SW_choc_v1v2_HS_19mmSpc | SW10 |
| 1 | Enter | Custom:SW_choc_v1v2_HS_19mmSpc | SW30 |
| 1 | Esc | Custom:SW_choc_v1v2_HS_19mmSpc | SW7 |
| 1 | F SCOOP | Custom:SW_choc_v1v2_HS_19mmSpc | SW23 |
| 1 | G | Custom:SW_choc_v1v2_HS_19mmSpc | SW24 |
| 1 | G*** | kibuzzard-6A81B412 | kibuzzard-6A81B412 |
| 1 | G*** | kibuzzard-6A81B455 | kibuzzard-6A81B455 |
| 1 | G*** | kibuzzard-6A81B46A | kibuzzard-6A81B46A |
| 1 | G*** | kibuzzard-6A81B44A | kibuzzard-6A81B44A |
| 1 | G*** | kibuzzard-6A81B684 | kibuzzard-6A81B684 |
| 1 | G*** | kibuzzard-6A81B43D | kibuzzard-6A81B43D |
| 1 | G*** | kibuzzard-6A81B62F | kibuzzard-6A81B62F |
| 1 | G*** | kibuzzard-6A81B6A9 | kibuzzard-6A81B6A9 |
| 1 | GND | TestPoint:TestPoint_Pad_D2.0mm | TP5 |
| 1 | GREEN | LED_SMD:LED_0805_2012Metric | D27 |
| 1 | H | Custom:SW_choc_v1v2_HS_19mmSpc | SW25 |
| 1 | I | Custom:SW_choc_v1v2_HS_19mmSpc | SW15 |
| 1 | J SCOOP | Custom:SW_choc_v1v2_HS_19mmSpc | SW26 |
| 1 | K | Custom:SW_choc_v1v2_HS_19mmSpc | SW27 |
| 1 | L | Custom:SW_choc_v1v2_HS_19mmSpc | SW28 |
| 1 | M | Custom:SW_choc_v1v2_HS_19mmSpc | SW38 |
| 1 | N | Custom:SW_choc_v1v2_HS_19mmSpc | SW37 |
| 1 | O | Custom:SW_choc_v1v2_HS_19mmSpc | SW16 |
| 1 | P | Custom:SW_choc_v1v2_HS_19mmSpc | SW17 |
| 1 | Q | Custom:SW_choc_v1v2_HS_19mmSpc | SW8 |
| 1 | R | Custom:SW_choc_v1v2_HS_19mmSpc | SW11 |
| 1 | RST | TestPoint:TestPoint_Pad_D2.0mm | TP1 |
| 1 | S | Custom:SW_choc_v1v2_HS_19mmSpc | SW21 |
| 1 | SWCLK | TestPoint:TestPoint_Pad_D2.0mm | TP3 |
| 1 | SWDIO | TestPoint:TestPoint_Pad_D2.0mm | TP2 |
| 1 | T | Custom:SW_choc_v1v2_HS_19mmSpc | SW12 |
| 1 | Tab | Custom:SW_choc_v1v2_HS_19mmSpc | SW19 |
| 1 | U | Custom:SW_choc_v1v2_HS_19mmSpc | SW14 |
| 1 | USB-C 16P | Connector_USB:USB_C_Receptacle_G-Switch_GT-USB-7010ASV | J1 |
| 1 | V | Custom:SW_choc_v1v2_HS_19mmSpc | SW35 |
| 1 | W | Custom:SW_choc_v1v2_HS_19mmSpc | SW9 |
| 1 | Win | Custom:SW_choc_v1v2_HS_19mmSpc | SW46 |
| 1 | X | Custom:SW_choc_v1v2_HS_19mmSpc | SW33 |
| 1 | Y | Custom:SW_choc_v1v2_HS_19mmSpc | SW13 |
| 1 | Z | Custom:SW_choc_v1v2_HS_19mmSpc | SW32 |
Questions
How big is the Transporter PCB?
It measures 242.3 × 99.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Transporter use?
107 parts, built around the CH32X035G8R6 and BAV70. 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 Transporter KiCad files?
From the carrefinho/transporter repository on GitHub, at the commit this page was made from: the board is transporter-pcb/transporter.kicad_pcb and its schematic transporter-pcb/transporter.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Transporter design in my own project?
Its repository publishes it under the CERN-OHL-P-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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