2 layers116.8 × 30 mm
Type d
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
14 parts3kApache-2.0
2 layers14 × 83.2 mm
7backpack
nagius/7backpackLarge digit 7-segments driver
- Size
- 14 × 83.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 14
- Nets
- 24
- Pads
- 73
- Tracks, vias
- 111, 8
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 3 Sep 2024
- Updated
- 3 Sep 2024
Overview
7backpack is an open-source printed circuit board by nagius, from the nagius/7backpack repository on GitHub. It is a 2-layer board of 14 × 83.2 mm with 14 parts on 24 nets, routed with 111 tracks and 8 vias.
Its parts include 9 resistors, 2 ICs, 2 connectors and 1 capacitor.
README
README.md7Backpack
7Backpack is a shift register based led driver similar to SparkFun Large Digit Driver but with a nicer form factor.
It has been designed to fit directly at the back of common anode 7-segments displays. Four sizes are supported : 1.5" (15101BS), 1.8" (18011BH), 2.3" (23011BH) and 3" (30101BS).
Features
This board is functionnaly identical to SparkFun Large Digit Driver. Exact same code found at Spakfun tutorial can be used without any modification.
The size of the board can be adjusted to match the size of the display. The PCB has pre-cut lines to snap unneeded pieces of the board.
Manufacturing
See directory Gerber/ for production files and bill of materials.
License
Copyleft 2024 - Nicolas AGIUS
Creative Commons - Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
Parts
14| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 15 | Resistor_SMD:R_0603_1608Metric | R2, R3, R4, R5, R6, R7, R8 |
| 2 | Conn_01x06 | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J1, J2 |
| 1 | 100nF | Capacitor_SMD:C_0603_1608Metric | C1 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 15101BS-30101BS | Custom7Segments:15101BS-30101BS | U2 |
| 1 | 2k | Resistor_SMD:R_0603_1608Metric | R9 |
| 1 | TPIC6C596DC | TPIC6C596DR:SOIC127P600X175-16N | U1 |
Questions
How big is the 7backpack PCB?
It measures 14 × 83.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the 7backpack use?
14 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 7backpack KiCad files?
From the nagius/7backpack repository on GitHub, at the commit this page was made from: the board is Kicad/7Backpack.kicad_pcb and its schematic Kicad/7Backpack.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the 7backpack design in my own project?
Its repository states no licence, so its author keeps all rights: ask nagius before reusing the design.
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