README.md

---
title: PCB Image2Schematic
emoji: 🔌
colorFrom: green
colorTo: blue
sdk: gradio
sdk_version: 4.44.1
app_file: app.py
pinned: false
python_version: "3.11"
---

# 🔌 PCB Image → Schematic

Convert a PCB photo into a KiCAD schematic automatically using AI.

## Pipeline
1. **Component Detection** — YOLOv8 via Roboflow API detects resistors, capacitors, ICs etc.
2. **IC Text Reading** — EasyOCR reads part numbers from chip silkscreen
3. **Netlist Generation** — OpenCV trace following + proximity detection finds connections
4. **KiCAD Output** — Generates `.kicad_sch` file ready to open in KiCAD

## Local Setup
```bash
git clone https://github.com/sanjay-r123/pcb-image2schematic
cd pcb-image2schematic
python -m venv venv
venv\Scripts\activate
pip install -r requirements.txt
python app.py
```
Then open http://localhost:7860

## Run Individual Stages
```bash
python detector.py     "your_pcb.jpg"
python ocr.py          "your_pcb.jpg"          "your_pcb_results.json"
python netlist.py      "your_pcb.jpg"          "your_pcb_results_ocr.json"
python kicad_writer.py "your_pcb_netlist.json"
```

## Tech Stack
- Roboflow YOLOv8 — component detection
- EasyOCR — IC text reading  
- OpenCV — trace detection
- KiCAD format — schematic output
- Gradio — web UI