

Clock Unit
- Size
- 50 × 50 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 107
- Nets
- 53
- Pads
- 313
- Tracks, vias
- 678, 122
- Pours
- 240
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 1 Jan 2024
- Updated
- 20 Aug 2025
Overview
Clock Unit is an open-source printed circuit board by andwhyd, from the andwhyd/Led-Clock-Clock repository on GitHub. It is a 2-layer board of 50 × 50 mm with 107 parts on 53 nets, routed with 678 tracks and 122 vias.
Its parts include 48 capacitors, 48 diodes, 4 connectors and 2 resistors. It belongs with the lEDs and displays boards of this library.
README
README.mdLED Clock Clock
Ongoing project to create a less mechanical Clock Clock clone.
Parts
107| Qty | Value | Footprint | References |
|---|---|---|---|
| 48 | 100nF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C1, C2, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20, C21, C22, C23 +32 |
| 48 | XL-1615RGBC-WS2812B-S | Project_Library:LED-SMD_4P-L1.6-W1.5_XL-1615RGBC-WS2812B-S | LED1, LED2, LED10, LED11, LED12, LED13, LED14, LED15, LED16, LED17, LED18, LED19, LED20, LED21, LED22, LED23 +32 |
| 4 | Conn_01x04 | Project_Library:PinHeader_1x04_P2.54mm_Vertical | J1, J2, J3, J4 |
| 4 | Corner_m2_Hole | MountingHole:MountingHole_2.2mm_M2 | H1, H2, H3, H4 |
| 2 | 220 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R1, R2 |
| 1 | Center_m3_Hole | MountingHole:MountingHole_3.2mm_M3 | H5 |
Questions
How big is the Clock Unit PCB?
It measures 50 × 50 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Clock Unit use?
107 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 Clock Unit KiCad files?
From the andwhyd/Led-Clock-Clock repository on GitHub, at the commit this page was made from: the board is PCB/Clock_Unit/Clock_Unit.kicad_pcb and its schematic PCB/Clock_Unit/Clock_Unit.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Clock Unit design in my own project?
Its repository states no licence, so its author keeps all rights: ask andwhyd before reusing the design.
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