2 layers57.3 × 19 mm
2 layers100 × 69.5 mm
Clackwork
j4y-boi/clackworkThe alarm clock with a built in macropad!
- Size
- 100 × 69.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 26
- Nets
- 23
- Pads
- 98
- Tracks, vias
- 119, 0
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 22 Oct 2026
- Updated
- 29 Oct 2026
Overview
Clackwork is an open-source printed circuit board by j4y-boi, from the j4y-boi/clackwork repository on GitHub. It is a 2-layer board of 100 × 69.5 mm with 26 parts on 23 nets, routed with 119 tracks and 0 vias.
Its parts include 8 diodes, 8 switches, 1 IC and 1 connector. It belongs with the keyboards and input and lEDs and displays boards and the ESP32 and RISC-V boards of this library.
README
README.mdclackwork
The alarm clock with a built in macropad mode!
About:
This project was built for Hack Club Blare, I got the idea to add a macropad mode after seeing the microcontroller that we were supposed to use. It reminded me a lot of the RP2040-based microcontroller I used to build a macropad before and after some research I found out that the MCU we use supported Bluetooth. So, now you got an alarm clock that wakes you up, but you can also use it to game, which will probably keep you awake.
Showcase:
The case and the PCB of the alarm clock:
GUI that the alarm clock will use (Designed in Lopaka)
Schematic of the PCB:
3D model of the PCB itself:
PCB Wiring:
BOM / Bill of Materials
| Item | Qty |
|---|---|
| Seeed XIAO ESP32C3 | 1x |
| MX-Style Keyboard Switches | 8x |
| White Blank DSA Keycaps | 8x |
| Through-Hole 1N4148 Diodes | 8x |
| 2.25in TFT Screen | 1x |
| 3.3V Piezo Buzzer | 1x |
| 2.54mm 8 Pin Male Header | 1x |
| 20cm Female-Female Jumper Wires | 8x |
| M3x5x4 Heatset Inserts | 8x |
| M3x8mm Screws | 4x |
| M3x16mm Screws | 4x |
Parts
26| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | D | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4, D5, D6, D7, D8 |
| 8 | SW_Push_45deg | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB_3D | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | LOGO | LOGO | G***, G***, G*** |
| 1 | Buzzer | Buzzer_Beeper:Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | Conn_01x08_Pin | Connector_PinSocket_2.54mm:PinSocket_1x08_P2.54mm_Vertical | J1 |
| 1 | XIAO-ESP32-C3-SMD | Seeed Studio XIAO Series:XIAO-ESP32-C3-DIP | U1 |
Questions
How big is the Clackwork PCB?
It measures 100 × 69.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Clackwork use?
26 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.
Where can I download the Clackwork KiCad files?
From the j4y-boi/clackwork repository on GitHub, at the commit this page was made from: the board is PCB/Clackwork.kicad_pcb and its schematic PCB/Clackwork.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Clackwork design in my own project?
Its repository states no licence, so its author keeps all rights: ask j4y-boi before reusing the design.
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