2 layers19 × 76 mm
Sub
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
15 parts3kApache-2.0
2 layers95 × 65 mm
Hackaclock
zacianculovici/hackaclockMy Stardance BLARE alarm clock!!!
- Size
- 95 × 65 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 15
- Nets
- 15
- Pads
- 72
- Tracks, vias
- 60, 3
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 9 Sep 2026
- Updated
- 22 Oct 2026
Overview
Hackaclock is an open-source printed circuit board by zacianculovici, from the zacianculovici/hackaclock repository on GitHub, published under the MIT licence. It is a 2-layer board of 95 × 65 mm with 15 parts on 15 nets, routed with 60 tracks and 3 vias.
Its parts include 6 switches, 1 IC and 1 connector. It belongs with the ESP32 and RISC-V boards of this library.
README
README.mdhackaclock
My Stardance BLARE alarm clock!!!
Inspiration
Really, I just saw the BLARE mission and thought it was really cool, but I made the case inspired by one of those old alarm clocks with the angled screens. I also added a cool cutout and some bevelling to make it look nice.
Challenges
I ran into some pretty tough issues while doing CAD. I made a dumb decision at the start to use blender for my CAD even though it's not exactly a CAD program. Loads of non-manifold errors and geometry issues (that might just be why my commit history looks terrible). I spent over 13 hours just getting the CAD done! Despite these problems, I am still very happy with the result and the CAD (in my humble opinion) looks great.
Files
- Firmware: hackaclock.ino
- Box: Hackaclock-Box.stl
- Lid: Hackaclock-Lid.stl
- PCB: Board.step
- Gerbers: fab_files.zip
Specs
BOM
- 6x Cherry MX Switches
- 6x Blank Keycaps
- 1x Unimportant jumper header
- 1x XIAO ESP32-C3
- 4x M3x16 bolts
- 4x M3 heat-set inserts
- 1x Buzzer
Firmware
I am using the most barebones firmware to begin, but I will make it super cool after I build. Currently it only gets the local time via WiFi with no fallback, but I will eventually add:
Coming soon
- Alarms
- Manual time setting
- Timer/stopwatch
- Alarm snooze
- Buzzer goes beeeeeeep
- More features...
CAD
The CAD is a very simple (13h worth of simple) box and lid with a slot for the display and supports for the PCB.
PCB:
Here is the Schematic and PCB layout for hackaclock.
Parts
15| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | SW_Push | Library:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4, SW5, SW6 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H3, H4, H5 |
| 2 | LOGO | LOGO | Hackaclock - By Zac Ianculovici, Hackaclock - By Zac Ianculovici |
| 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 Hackaclock PCB?
It measures 95 × 65 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hackaclock use?
15 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 Hackaclock KiCad files?
From the zacianculovici/hackaclock repository on GitHub, at the commit this page was made from: the board is PCB/hackaclock/hackaclock.kicad_pcb and its schematic PCB/hackaclock/hackaclock.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hackaclock design in my own project?
Its repository publishes it under the MIT 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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