2 layers333.4 × 149.9 mm
2 layers76.2 × 50.8 mm
MusicalChristmasTree
UserHackable/MusicalChristmasTreeMusicalChristmasTree
- Size
- 76.2 × 50.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 20
- Nets
- 8
- Pads
- 47
- Tracks, vias
- 128, 0
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 8 Apr 2016
- Updated
- 20 Jul 2026
Overview
MusicalChristmasTree is an open-source printed circuit board by UserHackable, from the UserHackable/MusicalChristmasTree repository on GitHub. It is a 2-layer board of 76.2 × 50.8 mm with 20 parts on 8 nets, routed with 128 tracks and 0 vias.
It is built around the CR2032. Its parts include 12 diodes, 1 IC and 1 connector.
Main components
1README
README.mdMusical Charlieplex Christmas Tree
The idea behind this board is that it would allow you to create a wearable that would be both decorative and blinky, as well as be able to play a tune..
MusicalChristmasTree
Board dimensions
- (300000, 200000) original units
- (3.0000, 2.0000) inches
- (76.2000, 50.8000) mm
| Front | Back |
|---|---|
 |  |
Parts
20| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | LED5MM | LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8, LED9, LED10, LED11, LED12 | |
| 1 | dummyfp0 | UNK_HOLE_0 | |
| 1 | dummyfp1 | UNK_HOLE_1 | |
| 1 | BUZZERPTH | BUZZER-12MM | SG1 |
| 1 | CR2032 | CR2032-THRU | BATT0 |
| 1 | ICSP | 2X3-NS | J1 |
| 1 | TAC_SPST_NO | TAC_SPST_NO | RESET0 |
| 1 | TINY85 | DIP08 | U1 |
| 1 | USER_HACKABLE | USER_HACKABLE | U$1 |
Questions
How big is the MusicalChristmasTree PCB?
It measures 76.2 × 50.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MusicalChristmasTree use?
20 parts, built around the CR2032. 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 MusicalChristmasTree KiCad files?
From the UserHackable/MusicalChristmasTree repository on GitHub, at the commit this page was made from: the board is KiCad/MusicalChristmasTree/MusicalChristmasTree.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the MusicalChristmasTree design in my own project?
Its repository states no licence, so its author keeps all rights: ask UserHackable before reusing the design.
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