4 layers15.2 × 9 mm
Sensors
StuckAtPrototype/Racer
These are structured into their own files. I could have used submodules, but decided against it.
14 parts3.8kApache-2.0
4 layers
ProPrj Practice 4 layer 2025-08-23
edwardschmitz/sigcore-uc24Initial Clean Commit
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 14
- Nets
- 12
- Pads
- 44
- Tracks, vias
- 94, 13
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 4 Dec 2025
- Updated
- 5 Nov 2026
Overview
ProPrj Practice 4 layer 2025-08-23 is an open-source printed circuit board by edwardschmitz, from the edwardschmitz/sigcore-uc repository on GitHub. It is a 4-layer board with 14 parts on 12 nets, routed with 94 tracks and 13 vias.
Its parts include 6 resistors, 3 ICs and 1 capacitor.
README
README.mdSigCore UC – Universal Controller
Status: In Development
Version: revA (prototype phase)
Runs on: Raspberry Pi OS (64-bit) with a .NET 8-based server and a C#/WPF Control Panel for Windows.
SigCore UC is a modular, high-precision universal I/O controller designed for engineers, developers, and integrators working in automation, control systems, and experimentation.
It supports a broad range of analog, digital, and current-loop signals, and is built to be both powerful and transparent—from PCB to Python.
Key Features
- Analog Inputs
- Millivolt to 10V input range
- 4–20 mA loop support
- Configurable filtering and calibration
- Digital Inputs
- Logic level support from 3V to 30V
- Built-in protection and detection
- Relay Outputs
- High-current mechanical and solid-state options
- Default-state configuration and software override
- Analog Outputs
- Voltage and PWM output modes
- Communication
- Ethernet
- Modbus and Web API integration
- Extensibility
- Python and C# libraries
- Firmware auto-update
License
MIT License — open for inspection, modification, and contribution.
About This Repo
SigCore UC is the successor to the D88A42 Prototype.
It brings forward lessons learned and raises the ceiling for custom I/O control systems.
Parts
14| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | ProPrj_Practice 4 layer_2025-08-23:R0603 | R1, R3, R4, R5, R6 | |
| 2 | ProPrj_Practice 4 layer_2025-08-23:SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BR | U2, U6 | |
| 1 | ProPrj_Practice 4 layer_2025-08-23:Pad_e561 | ||
| 1 | ProPrj_Practice 4 layer_2025-08-23:Pad_e564 | ||
| 1 | ProPrj_Practice 4 layer_2025-08-23:R0402 | R2 | |
| 1 | ProPrj_Practice 4 layer_2025-08-23:C0603 | C1 | |
| 1 | ProPrj_Practice 4 layer_2025-08-23:Pad_e562 | ||
| 1 | ProPrj_Practice 4 layer_2025-08-23:Pad_e563 | ||
| 1 | ProPrj_Practice 4 layer_2025-08-23:TSSOP-16_L5.0-W4.4-P0.65-LS6.4-BL | U5 |
Similar boards
- 4 layers25.5 × 46.5 mm
TremorWatch
hackclub/OnBoard
💡 Join 1,000 teenagers and make your first PCB with a $100 grant!
14 parts915 - 4 layers81 × 46 mm
XTMAX PCB
MicroCoreLabs/Projects
Ted Fried's MicroCore Labs Projects - FPGA CPU cores and emulators for the 8088, 8086, 8051, 6502, 68000, Z80, Risc-V, and also Typewriter and EPROM Emulator projects.
14 parts534 - 4 layers22 × 42 mm
- 4 layers64 × 46.5 mm
DSC Scan Selector
nanographs/Open-Beam-Interface
Just what you need to control the beam and get an image.
14 parts371 - 4 layers65.2 × 61.4 mm
Pi 400 gpio breakout
CRImier/MyKiCad
My KiCad boards. Can't be bothered uploading individually anymore, so here you go.
14 parts253GPL-3.0 - 4 layers20 × 23 mm
- 4 layers
Trill ring
BelaPlatform/Trill
Trill sensors are designed to bring beautiful touch interaction to digital projects. Trill sensors are available now on the Bela Shop and via Mouser Electronics.
14 parts77
Questions
What parts does the ProPrj Practice 4 layer 2025-08-23 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 ProPrj Practice 4 layer 2025-08-23 KiCad files?
From the edwardschmitz/sigcore-uc repository on GitHub, at the commit this page was made from: the board is hardware/KiCad/AOutOne/ProPrj_Practice 4 layer_2025-08-23.kicad_pcb and its schematic hardware/KiCad/AInOne/AInOne.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ProPrj Practice 4 layer 2025-08-23 design in my own project?
Its repository states no licence, so its author keeps all rights: ask edwardschmitz before reusing the design.