
Nrsk right
0x0c/spltnrskb
KLE レイアウト(kle/left.json、kle/right.json)から生成した、左右分割・有線接続のキーボード基板です。 KiCad 10 のプロジェクト(回路図と配線済み基板)、製造用ガーバー、BOM、QMK ファームウェア設定を含みます。筐体のデータ(アクリルのレーザーカット用 DXF/SVG と 3D プリント用 STL)も入っています。

This GPS watch project began from my interest in building a custom fitness device that records accurate run and cycle data and allows users to create and implement their own features.
SportsWatch is an open-source printed circuit board by HaydenGillen, from the HaydenGillen/SportsWatch repository on GitHub. It is a 2-layer board of 42 × 42 mm with 49 parts on 68 nets, routed with 532 tracks and 95 vias.
It is built around the RP2040, L96-M33 and W25Q128JVSIQ, with the MP2665AGQB-0000-Z, ABM8-272-T3 and EC05E1220401 among its other parts. Its parts include 24 capacitors, 8 resistors, 5 ICs, 5 connectors and 5 switches. It belongs with the RP2040 boards of this library.
This GPS watch project began from my interest in building a custom fitness device that records accurate run and cycle data and allows users to create and implement their own features.
when I plugged the battery in, the charge chip got really hot, desoldered itself, and shifted. since usb power is routed through this chip, I can't work on it until I fix that, so this will be on hold for a little bit


| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 100n | Capacitor_SMD:C_0402_1005Metric | C5, C6, C7, C9, C11, C12, C13, C14, C15, C16, C17, C20 |
| 4 | SW_Push | Button_Switch_SMD:SW_SPST_EVQP7A | SW1, SW3, SW4, SW5 |
| 2 | 0.1uF | Capacitor_SMD:C_0402_1005Metric | C18, C21 |
| 2 | 10u | Capacitor_SMD:C_0805_2012Metric | C4, C24 |
| 2 | 15p | Capacitor_SMD:C_0402_1005Metric | C2, C3 |
| 2 | 1k | Resistor_SMD:R_0402_1005Metric | R1, R5 |
| 2 | 1u | Capacitor_SMD:C_0402_1005Metric | C8, C10 |
| 2 | 20kR | Resistor_SMD:R_0402_1005Metric | R6, R7 |
| 2 | 27 | Resistor_SMD:R_0402_1005Metric | R3, R4 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric | C22 |
| 1 | 1uF | Capacitor_SMD:C_0402_1005Metric | C23 |
| 1 | 22uF | Capacitor_SMD:C_0402_1005Metric | C19 |
| 1 | 4.7uF | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | ABM8-272-T3 | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | Battery | Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | J5 |
| 1 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J4 |
| 1 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | DNF | Resistor_SMD:R_0402_1005Metric | R2 |
| 1 | EC05E1220401 | Library:EC05E1220401 | SW2 |
| 1 | L96-M33 | RF_GPS:Quectel_L96 | U5 |
| 1 | MP2665AGQB-0000-Z | Library:MP2665AGQB0000P | U4 |
| 1 | Micro_SD_Card_Det_Hirose_DM3AT | Connector_Card:microSD_HC_Hirose_DM3AT-SF-PEJM5 | J1 |
| 1 | MountingHole_Pad | MountingHole:MountingHole_2.2mm_M2_DIN965_Pad | H1 |
| 1 | NCP1117-3.3_SOT223 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | R | Resistor_SMD:R_0402_1005Metric | R8 |
| 1 | RP2040 | RP2040_minimal:RP2040-QFN-56 | U3 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_Amphenol_10103594-0001LF_Horizontal | J6 |
| 1 | W25Q128JVS | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U6 |

0x0c/spltnrskb
KLE レイアウト(kle/left.json、kle/right.json)から生成した、左右分割・有線接続のキーボード基板です。 KiCad 10 のプロジェクト(回路図と配線済み基板)、製造用ガーバー、BOM、QMK ファームウェア設定を含みます。筐体のデータ(アクリルのレーザーカット用 DXF/SVG と 3D プリント用 STL)も入っています。

efogtech/endgame-trackball-hardware
Because it's cheaper than 4 layers. Yes, seriously.



alphaseneca/cryptick-token-pcb
Hardware schematics, 2-layer PCB layout, and manufacturing files for Cryptick Token — the 100% open-source biometric hardware security key and cryptographic hardware enclave.


kisbAlt/espSkipper_v2
ESP32 based, open source, low cost boat instrumentation to replace proprietary marine systems.

conol-ai/openwalkietalkie
OpenMicroDial firmware — Rust/embassy on SiFli SF32LB52 (LilyGo T-Display SF32 dev board)
It measures 42 × 42 mm and has 2 copper layers, 1 mm thick.
49 parts, built around the RP2040, L96-M33, W25Q128JVSIQ and MP2665AGQB-0000-Z. 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 HaydenGillen/SportsWatch repository on GitHub, at the commit this page was made from: the board is Hardware/v1.0/v1.0.kicad_pcb and its schematic Hardware/v1.0/v1.0.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 HaydenGillen before reusing the design.