2 layers40 × 20 mm
2 layers73.8 × 123.5 mm
JB PCB
mamorobotics/JB_PCBNote - some weird things happened with version history, so there's a section of backups from initial development to Jan 2025, which got deleted, and a section of backups, that was added recently (Feb 25 to March 25).
- Size
- 73.8 × 123.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 13
- Nets
- 34
- Pads
- 64
- Tracks, vias
- 101, 10
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 16 Nov 2024
- Updated
- 9 May 2026
Overview
JB PCB is an open-source printed circuit board by mamorobotics, from the mamorobotics/JB_PCB repository on GitHub. It is a 2-layer board of 73.8 × 123.5 mm with 13 parts on 34 nets, routed with 101 tracks and 10 vias.
Its parts include 1 IC and 1 connector. It belongs with the AVR (ATmega, ATtiny) boards of this library.
README
README.mdJunction Box PCB for Mamaroneck Robotics
Using KiCAD
Note - some weird things happened with version history, so there's a section of backups from initial development to Jan 2025, which got deleted, and a section of backups, that was added recently (Feb 25 to March 25).
The last commit that had the older backups was on Jan 23, 2025 (35d8801). The earliest commit that had the newer (moer important) backups was on May 8, 2026 (ca4f12d).
Parts
13| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | Screw_Terminal_01x02 | myFootprints.pretty-master:Barrier 2x2 | ARD_PWR1, J2, J3, J4, J6, MOT_PWR1 |
| 1 | Arduino_Nano_v3.x | Module:Arduino_Nano | A1 |
| 1 | Conn_01x06_Pin | myFootprints.pretty-master:1x6Headers | J1 |
| 1 | LOGO | myFootprints.pretty-master:MateLogo | G*** |
| 1 | ~ | myFootprints.pretty-master:RS485_Board | U1 |
The 10 most common of 13 parts.
Questions
How big is the JB PCB PCB?
It measures 73.8 × 123.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the JB PCB use?
13 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 JB PCB KiCad files?
From the mamorobotics/JB_PCB repository on GitHub, at the commit this page was made from: the board is JB_PCB.kicad_pcb and its schematic JB_PCB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the JB PCB design in my own project?
Its repository states no licence, so its author keeps all rights: ask mamorobotics before reusing the design.
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