ESP32-WROOM-32D KiCad Library

This repository contains a custom KiCad schematic symbol and PCB footprint library for the ESP32-WROOM-32D (38-pin development board style).

It is designed for PCB designers and embedded systems developers who want a clean, reusable ESP32 module library for KiCad projects.

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⚙️ Library Contents

Symbol

• ESP32-WROOM-32D schematic symbol
• Proper pin naming and numbering
• Organized pin layout for clarity

Footprint

• 38-pin development board style footprint
• 2.54mm through-hole header spacing
• Aligned for standard ESP32 dev board form factor

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📌 Pin Coverage

Includes the main functional pins of the ESP32-WROOM-32D module:

• Power: 3V3, 5V, GND
• Control: EN
• UART: TX, RX
• GPIO pins
• ADC inputs: VP, VN
• Internal flash pins marked as NC (No Connect)

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🚀 How to Use in KiCad

1. Download or Clone Repository

git clone https://github.com/yourusername/esp32-wroom32d-kicad-library.git

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2. Add Symbol Library

1. Open KiCad

2. Go to:

   Preferences → Manage Symbol Libraries
   

3. Click Add Library

4. Select the folder:

   symbols/
   

5. Apply changes

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3. Add Footprint Library

1. Go to:

   Preferences → Manage Footprint Libraries
   

2. Click Add Library

3. Select:

   footprints/
   

4. Apply changes

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4. Use in Schematic

1. Open schematic editor

2. Press A (Add Symbol)

3. Search for:

   WROOM32D
   

4. Place the symbol

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5. Assign Footprint

1. Select the symbol

2. Press E (Properties)

3. Assign footprint:

   WROOM32D_Footprint
   

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6. Transfer to PCB

In PCB Editor:

Tools → Update PCB from Schematic (F8)

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⚠️ Notes

• Internal flash pins (CLK, CMD, SD0–SD3) are marked as NC (No Connect) and should not be used.
• Ensure correct 2.54mm header alignment when placing footprint.
• Always verify pin mapping with your physical ESP32 board before fabrication.

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📜 License

This project is licensed under the MIT License.

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👤 Author

Custom KiCad library for ESP32 PCB development and embedded systems design.