2 layers70 × 35 mm
2 layers73.7 × 22.9 mm
ColorBar
UserHackable/ColorBarColorBar
- Size
- 73.7 × 22.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 41
- Nets
- 17
- Pads
- 98
- Tracks, vias
- 175, 12
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 8 Apr 2016
- Updated
- 20 Jul 2026
Overview
ColorBar is an open-source printed circuit board by UserHackable, from the UserHackable/ColorBar repository on GitHub. It is a 2-layer board of 73.7 × 22.9 mm with 41 parts on 17 nets, routed with 175 tracks and 12 vias.
Its parts include 6 resistors, 3 transistors, 2 connectors and 1 IC.
README
README.mdLED Color Bar
This is intended to be used to light up a glass sculpture or etching on glass or plexiglass.
The usb level shifting components would theoretically allow you to control the colors over the USB port, but I haven't goten around to trying that yet.
The small oval LED's are CREE 4mm ovals
ColorBar
Board dimensions
- (290000, 90000) original units
- (2.9000, 0.9000) inches
- (73.6600, 22.8600) mm
| Front | Back |
|---|---|
 |  |
Parts
41| Qty | Value | Footprint | References |
|---|---|---|---|
| 18 | LED-OVAL | BLUE1, BLUE2, BLUE3, BLUE4, BLUE5, BLUE6, GREEN1, GREEN2, GREEN3, GREEN4, GREEN5, GREEN6, RED1, RED2, RED3, RED4 +2 | |
| 3 | TO-92-AMMO | Q1, Q2, Q3 | |
| 2 | 1X03 | JP2, JP3 | |
| 2 | 3.6 | DIODE-ZENER | U$1, U$2 |
| 2 | 68 | AXIAL-0.3 | R4, R5 |
| 1 | dummyfp0 | UNK_HOLE_0 | |
| 1 | dummyfp2 | UNK_HOLE_2 | |
| 1 | USB-MINIB-THM-MOLEX | CN1 | |
| 1 | dummyfp3 | UNK_HOLE_3 | |
| 1 | dummyfp1 | UNK_HOLE_1 | |
| 1 | 1.5k | AXIAL-0.3 | R6 |
| 1 | 13 | AXIAL-0.3 | R2 |
| 1 | 15 | AXIAL-0.3 | R3 |
| 1 | 24 | AXIAL-0.3 | R1 |
| 1 | AVR_SPI_PRG_6LABELED | 2X3-NS | J1 |
| 1 | M023.5MM | SCREWTERMINAL-3.5MM-2 | JP1 |
| 1 | M02PTH | 1X02 | JP4 |
| 1 | TAC_SPST_NO | TAC_SPST_NO | RESET0 |
| 1 | TINY85-20-DIP | DIP08 | U1 |
Questions
How big is the ColorBar PCB?
It measures 73.7 × 22.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ColorBar use?
41 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 ColorBar KiCad files?
From the UserHackable/ColorBar repository on GitHub, at the commit this page was made from: the board is KiCad/ColorBar/ColorBar.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the ColorBar 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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