2 layers50.8 × 20.3 mm
2 layers45 × 19 mm
Cowstick-01
Agilack/cowstickThe goal of Cowstick project is to create usefull tools for microcontroller and FPGA development, for example JTAG/SWD probes, serial port adapter ...
- Size
- 45 × 19 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 49
- Nets
- 43
- Pads
- 128
- Tracks, vias
- 407, 44
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 8 May 2017
- Updated
- 13 May 2026
Overview
Cowstick-01 is an open-source printed circuit board by Agilack, from the Agilack/cowstick repository on GitHub. It is a 2-layer board of 45 × 19 mm with 49 parts on 43 nets, routed with 407 tracks and 44 vias.
It is built around the TXS0108EPWR(临时启用). Its parts include 8 capacitors, 5 resistors, 3 ICs, 2 diodes and 1 connector. It belongs with the interfaces and adapters boards and the SAM D and SAM boards of this library.
Main components
1README
README.mdCowstick
The goal of Cowstick project is to create usefull tools for microcontroller and FPGA development, for example JTAG/SWD probes, serial port adapter ... This tools are not revolutionnary in their functions but offer a more user-friendly approach based on network communication.
usbkey-ios
This is the first member of cowstick familly. At this time, this key is only a proof of concept. It contains a microcontroller with USB interface, and many configurable IOs.
Parts
49| Qty | Value | Footprint | References |
|---|---|---|---|
| 23 | CONN_1 | cowstick:TP | EXT_1, EXT_2, EXT_3, EXT_4, EXT_6, EXT_7, EXT_PWR0, P1, P2, P3, P4, P5, P6, P10, P11, P12 +7 |
| 3 | 100nF | cowstick:SMD0603 | C3, C4, C10 |
| 3 | CONN_1 | cowstick:TP_SMD | TP4, TP5, TP7 |
| 2 | 10k | cowstick:SMD0603 | R1, R2 |
| 2 | 10uF | cowstick:SMD0805 | C1, C2 |
| 2 | 1k | cowstick:SMD0603 | R4, R5 |
| 2 | 1uF | cowstick:SMD0603 | C5, C6 |
| 2 | LED | cowstick:SMD0805 | D1, D2 |
| 1 | 0 | cowstick:SMD0603 | R3 |
| 1 | 2,2uH | cowstick:SMD0805 | L1 |
| 1 | 450px | cowstick-logos:agilack-11.5 | agilack-11.5 |
| 1 | ATSAMD21ExxA-Axx | cowstick:TQFP32 | U1 |
| 1 | C | cowstick:SMD0603 | C11 |
| 1 | CONN_USB-A | cowstick:CONN_MC32604 | J1 |
| 1 | LM3671 | cowstick:SOT23-5 | U2 |
| 1 | SW_PUSH | cowstick:SW_PTS840 | SW1 |
| 1 | TXS0108E-PW | cowstick:TSSOP20 | U3 |
| 1 | VAL** | cowstick-logos:ohw-logo | ohw_logo |
Questions
How big is the Cowstick-01 PCB?
It measures 45 × 19 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Cowstick-01 use?
49 parts, built around the TXS0108EPWR(临时启用). 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 Cowstick-01 KiCad files?
From the Agilack/cowstick repository on GitHub, at the commit this page was made from: the board is usbkey-ios/hardware/prj-kicad/cowstick-01.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Cowstick-01 design in my own project?
Its repository states no licence, so its author keeps all rights: ask Agilack before reusing the design.
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