
OSO SWAT B1-jig
joeycastillo/Sensor-Watch
A board replacement for the classic Casio F-91W wristwatch

K03 is an open-source printed circuit board by luimmich, from the luimmich/K03 repository on GitHub. It is a 2-layer board of 98.3 × 90.1 mm with 31 parts on 24 nets, routed with 305 tracks and 25 vias.
Its parts include 18 switches and 1 IC. It belongs with the AVR (ATmega, ATtiny) boards of this library.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 18 | SW_Push | Library:choc_v1_rev_inv_cfx | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18 +2 |
| 5 | , , , , | ||
| 2 | clipboard:4e9d550f-c2a6-4572-bdce-c4b7c3a3c082 | , | |
| 2 | MountingHole_Pad | kbd:1pin_conn | B-, B+ |
| 1 | ProMicro-kbd | * duckyb-collection:ProMicro_jumpers_facedown | U1 |
| 1 | SW_Push | * duckyb-collection:Tactile-Switch_SMT | RSW2 |
| 1 | SW_SPDT | Kailh:SPDT_C128955 | POWER SW |
The 30 most common of 31 parts.
It measures 98.3 × 90.1 mm and has 2 copper layers, 1.6 mm thick.
31 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.
From the luimmich/K03 repository on GitHub, at the commit this page was made from: the board is USB-C-CFX/K03.kicad_pcb and its schematic USB-C-CFX/K03.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask luimmich before reusing the design.

joeycastillo/Sensor-Watch
A board replacement for the classic Casio F-91W wristwatch

hoglet67/RGBtoHDMI
Bare-metal Raspberry Pi project that provides pixel-perfect sampling of Retro Computer RGB/YUV video and conversion to HDMI

hackclub/OnBoard
💡 Join 1,000 teenagers and make your first PCB with a $100 grant!

openwch/ch32v003
CH32V003 is an ultra-cheap RISC-V MCU with 2KB SRAM, 16KB flash, and up to 18 GPIOs that sells for under $0.10

Luos-io/luos_engine
Open-source and real-time orchestrator for cyber-physical-systems, to easily design, test and deploy embedded applications and digital twins.
BlueAndi/Pixelix
Full RGB LED matrix, based on an ESP32 and WS2812B LEDs or emulated LEDs on TFT.

