2 layers92.7 × 33 mm
2 layers78.7 × 50.8 mm
SevenSegmentArrays
UserHackable/CharlieClock1CharlieClock1
- Size
- 78.7 × 50.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 99
- Nets
- 64
- Pads
- 241
- Tracks, vias
- 337, 6
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 8 Apr 2016
- Updated
- 20 Jul 2026
Overview
SevenSegmentArrays is an open-source printed circuit board by UserHackable, from the UserHackable/CharlieClock1 repository on GitHub. It is a 2-layer board of 78.7 × 50.8 mm with 99 parts on 64 nets, routed with 337 tracks and 6 vias.
Its parts include 72 diodes, 10 resistors, 2 capacitors, 1 IC and 1 transistor. It belongs with the AVR (ATmega, ATtiny) boards of this library.
README
README.mdSevenSegmentArrays
Board dimensions
- (310000, 200000) original units
- (3.1000, 2.0000) inches
- (78.7400, 50.8000) mm
| Front | Back |
|---|---|
 |  |
SevenSegmentBreakout
Board dimensions
- (365000, 130000) original units
- (3.6500, 1.3000) inches
- (92.7100, 33.0200) mm
| Front | Back |
|---|---|
 |  |
Parts
99| Qty | Value | Footprint | References |
|---|---|---|---|
| 56 | RECTANGLE_LED | LED1, LED2, LED10, LED11, LED12, LED13, LED14, LED15, LED16, LED17, LED18, LED19, LED20, LED21, LED22, LED23 +40 | |
| 16 | LED3MM | LED57, LED58, LED59, LED60, LED61, LED62, LED63, LED64, LED65, LED66, LED67, LED68, LED69, LED70, LED71, LED72 | |
| 10 | AXIAL-0.3 | R1, R2, R3, R4, R5, R6, R7, R8, R9, R10 | |
| 2 | CAP-PTH-SMALL | C1, C2 | |
| 1 | TACTILE-PTH | S1 | |
| 1 | dummyfp3 | UNK_HOLE_3 | |
| 1 | dummyfp0 | UNK_HOLE_0 | |
| 1 | dummyfp4 | UNK_HOLE_4 | |
| 1 | dummyfp6 | UNK_HOLE_6 | |
| 1 | dummyfp5 | UNK_HOLE_5 | |
| 1 | dummyfp2 | UNK_HOLE_2 | |
| 1 | TC38H | Q1 | |
| 1 | dummyfp1 | UNK_HOLE_1 | |
| 1 | ATMEGA328P_PDIP | DIL28-3 | U1 |
| 1 | AVR_SPI_PRG_6LABELED | 2X3-NS | J1 |
| 1 | FTDI_DEVICE | FTDI_DEVICE_SIDE | JP2 |
| 1 | I2C | I2C | U$1 |
| 1 | M02PTH | 1X02 | JP3 |
| 1 | M14 | 1X14 | JP1 |
Questions
How big is the SevenSegmentArrays PCB?
It measures 78.7 × 50.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the SevenSegmentArrays use?
99 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 SevenSegmentArrays KiCad files?
From the UserHackable/CharlieClock1 repository on GitHub, at the commit this page was made from: the board is KiCad/SevenSegmentArrays/SevenSegmentArrays.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the SevenSegmentArrays 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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