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A curated collection of beginner-friendly KiCad PCB projects designed for learning, experimentation, and educational reference.
This repository contains editable KiCad circuit projects for students, hobbyists, and junior engineers practicing schematic capture, PCB layout, and basic electronics documentation. Each documented project has its own README with circuit notes, source-file navigation, beginner guidance, and project-specific safety reminders.
| Repository detail | Status |
|---|---|
| Educational focus | Low-voltage KiCad PCB learning projects |
| KiCad metadata | KiCad 9.0 and 10.0 generator versions detected |
| Documented transistor-based projects | 12 |
| Documented project READMEs | 12 |
| Hardware-tested transistor projects | 12 |
| License | MIT License |
This repository is intended for educational and personal learning purposes. The circuits, schematics, PCB layouts, fabrication files, and documentation are shared to help students understand electronics design, PCB fabrication, and circuit analysis.
Please do not submit these projects as your own academic work. If you use any design or idea from this repository, make sure you understand how it works, adapt it to your own requirements, and follow your institution's academic integrity policies.
The goal of this repository is to encourage learning, experimentation, and skill development—not to replace your own design process.
If you are using this repository for a class, use it as a reference to understand concepts and improve your own designs. Always create and submit work that complies with your instructor's requirements and your institution's academic integrity policies.
| Category | Current Documentation Status | Link |
|---|---|---|
| Transistor Based | Version 2.0.0 category README with 12 documented projects | Open category |
| Arduino | Folder present; project documentation may be added in future phases | Open folder |
| ESP32 | Folder present; project documentation may be added in future phases | Open folder |
| Power Supply | Folder present; project documentation may be added in future phases | Open folder |
| Raspberry Pi | Folder present; project documentation may be added in future phases | Open folder |
| Sensor Modules | Folder present; project documentation may be added in future phases | Open folder |
| Docs | Repository documentation folder | Open folder |
| Project Templates | Template/reference folder | Open folder |
| Project | Why it is useful | Difficulty | Hardware Tested | Link |
|---|---|---|---|---|
| Water Level Indicator | Multi-stage sensing and indication project with LEDs and buzzer output. | Beginner–Intermediate | Yes | Open README |
| Temperature Controlled DC Fan - BC547 | Thermistor-based fan-control example using a transistor driver stage. | Beginner | Yes | Open README |
| Automatic Hand Sanitizer | Sensor-controlled pump-switching project for load-control practice. | Intermediate | Yes | Open README |
| Laser Alarm Security Circuit | Optical interruption alarm example using an LDR, LED, and buzzer. | Intermediate | Yes | Open README |
| Astable Multivibrator Circuit | Classic two-transistor LED flasher for timing and feedback concepts. | Beginner | Yes | Open README |
| 9V Battery Status Indicator Circuit | Simple voltage-indicator project using LEDs, zener reference, and transistors. | Beginner | Yes | Open README |
The Version 2.0.0 documented project catalog currently covers the transistor-based category.
| Project | Category | Difficulty | Hardware Tested | Documentation | Link |
|---|---|---|---|---|---|
| 9V Battery Status Indicator Circuit | Voltage indication | Beginner | Yes | README available | Open |
| Astable Multivibrator Circuit | Timing / oscillator | Beginner | Yes | README available | Open |
| Light-Activated Switch Circuit | Light-activated switching | Beginner | Yes | README available | Open |
| Temperature Controlled DC Fan - BC547 | Temperature control | Beginner | Yes | README available | Open |
| Laser Alarm Security Circuit | Optical alarm | Intermediate | Yes | README available | Open |
| Fire Alarm System Using Photodiode | Optical alarm | Intermediate | Yes | README available | Open |
| Obstacle Detector | IR obstacle sensing | Intermediate | Yes | README available | Open |
| Touch Sensor Circuit | Touch sensing | Beginner–Intermediate | Yes | README available | Open |
| Clap Switch Circuit | Sound-triggered switching | Intermediate | Yes | README available | Open |
| Automatic Hand Sanitizer | Sensor-controlled load | Intermediate | Yes | README available | Open |
| Hidden Wire Detector | Detection / sensing | Intermediate | Yes | README available | Open |
| Water Level Indicator | Water-level sensing | Beginner–Intermediate | Yes | README available | Open |
Start with the simpler indicator and timing circuits, then move into sensor-driven and multi-stage projects:
See the Transistor Based category README for the category index, common build checks, and category-level safety notes.
| Statistic | Detected value |
|---|---|
| Documented transistor-based projects | 12 |
Project READMEs in Transistor Based/ | 12 |
| Hardware-tested transistor projects | 12 |
| KiCad generator versions | 9.0, 10.0 |
| License file | MIT License present |
| Circuit categories | Voltage indication, timing, light sensing, optical alarm, IR sensing, touch sensing, sound switching, load control, wire detection, water-level sensing |
Documentation improvements, educational suggestions, bug reports, and pull requests are welcome. Please keep changes clear, evidence-based, and beginner-friendly.
These projects are intended for low-voltage electronics learning. Do not connect them to mains electricity or use them as certified alarm, safety, medical, life-support, or mission-critical equipment. Review each design carefully before building or modifying it.
This repository is available under the MIT License.
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