4 layers
Soccer bottom
class-ab/open-soccer
Mindstormers' open soccer repo. contains code, pcbs, elec, diagrams, etc...
76 parts2
4 layers95.1 × 95.1 mm
Middle
class-ab/open-soccer2Mindstormers' open soccer repo. contains code, pcbs, elec, diagrams, etc...
- Size
- 95.1 × 95.1 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 30
- Nets
- 68
- Pads
- 151
- Tracks, vias
- 339, 47
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 19 Feb 2026
- Updated
- 4 Oct 2026
Overview
Middle is an open-source printed circuit board by class-ab, from the class-ab/open-soccer repository on GitHub. It is a 4-layer board of 95.1 × 95.1 mm with 30 parts on 68 nets, routed with 339 tracks and 47 vias.
It is built around the DEV-16771. Its parts include 12 connectors, 5 resistors, 3 ICs, 3 switches and 1 capacitor.
Main components
1README
README.mdcontains all the PCBs, code and general shared documentation used in the creation of Mindstormers' open soccer robot/s (2026+)
Parts
30| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | Screw_Terminal_01x02 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2_1x02_P5.00mm_Horizontal | J15, J16, J17, J18, J19, J21 |
| 5 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H2, H3, H4, H5, H6 |
| 4 | Screw_Terminal_01x03 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-3_1x03_P5.00mm_Horizontal | J2, J3, J4, J5 |
| 3 | 10k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R4, R5, R6 |
| 3 | SW_Push | Button_Switch_THT:SW_PUSH_6mm_H5mm | SW1, SW2, SW3 |
| 1 | 100u | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C1 |
| 1 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2 |
| 1 | 4.7k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | 4754 | Footprints:MODULE_4754 | U2 |
| 1 | Conn_01x01_Pin | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J6 |
| 1 | Conn_01x04_Pin | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J1 |
| 1 | DEV-16771 | Footprints:MODULE_DEV-16771 | U1 |
| 1 | Fuse | Fuse:Fuseholder_Clip-5x20mm_Littelfuse_520_Inline_P20.50x5.80mm_D1.30mm_Horizontal | F1 |
| 1 | NRF24L01_Breakout | RF_Module:nRF24L01_Breakout | U3 |
Questions
How big is the Middle PCB?
It measures 95.1 × 95.1 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Middle use?
30 parts, built around the DEV-16771. 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 Middle KiCad files?
From the class-ab/open-soccer repository on GitHub, at the commit this page was made from: the board is PCBs/middle/middle/middle.kicad_pcb and its schematic PCBs/bottom/soccer bottom.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Middle design in my own project?
Its repository states no licence, so its author keeps all rights: ask class-ab before reusing the design.
More from class-ab/open-soccer
2- 2 layers81.5 × 81.5 mm
Kicker
class-ab/open-soccer
Mindstormers' open soccer repo. contains code, pcbs, elec, diagrams, etc...
39 parts2
Similar boards
- 4 layers96.5 × 81.3 mm
Hexapod PCB KiCad Project
Aecert-Robotics/Hexapod
A hexapod powered by Arduino using hobby servos
48 parts15GPL-3.0 - 4 layers62.8 × 97.5 mm
- 2 layers197.3 × 121.2 mm
TeensyMaestro Main PCB
rimuadmin/TeensyMaestro-Hardware
Hardware for the TeensyMaestro
115 parts13CERN-OHL-P-2.0 - 2 layers90 × 100 mm
Ecse controls flight computer
ALTAIR-McGill-x-UVictoria/HAB-Control-Flight-Computer
ECSE Control Capstone Team- High Altitude Balloon Flight Computer
34 parts3MIT - 2 layers106.8 × 96.4 mm
Hasp flight computer
Big-Red-Sat/High-Altitude-Student-Platform
This repository contains the hardware designs, data, and analysis of perovskite solar cells on high altitude balloons
292 parts3 - 2 layers88.9 × 88.9 mm
Main board v2
NeverNotJohn/CSUF-NASA-USLI-2026
California State University Fresno (CSUF) Github for the 2025-2026 NASA USLI Competition
29 parts2 - 4 layers77.1 × 76.2 mm
Tellus
IEEE-Robotics-Club/MSU-NASA-Minds-2023
The code repository for the 2023 MSU NASA Minds competition
37 parts1GPL-3.0 - 4 layers176.8 × 115.3 mm
Uven2-mk2-mainboard
letrend/UVen
UV irradiation system for enhanced photo-activation in living cells
210 parts1MIT