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 |
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.
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