🔍 Product Overview

This expansion shield board is designed specifically for 30-pin variants of the ESP32 development board (such as ESP32-DevKitC or ESP32S). The shield breaks out all GPIO pins, adds convenient power interfaces (USB Type-C, Micro USB, and DC barrel jack), and provides selectable logic voltage rails (3.3 V/5 V) — simplifying prototyping and expanding the board’s usability for full-featured IoT and embedded workflows.

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🚀 Why It’s Ideal for Your Projects

• Full pin breakout – Exposes all 30 GPIOs of the ESP32 module in a clear, labeled way, making wiring multiple sensors, modules and external interfaces far easier.

• Multiple power inputs – Supports USB Type-C, Micro USB or DC barrel jack (typically 6.5-16 V) power, giving flexibility in deployment—whether desktop, portable, battery-powered or wall-mounted.

• Selectable logic output – Offers a jumper to choose between 3.3 V or 5 V output logic rails (GVS) for sensors/modules, so you don’t need separate level-shifters when mixing modules.

• Project-friendly form-factor – Makes the ESP32 board sit more like a shield/hub for sensors rather than a stand-alone development board, improving wiring clarity and robustness.

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📝 Key Features

• Compatibility: 30-pin ESP32 Dev boards (check pin spacing and header layout)

• Power input: USB Type-C + Micro USB (5 V) or DC barrel jack (6.5-16 V)

• Output logic rail: Selectable between 5 V or 3.3 V via jumper

• Breakout: All ESP32 GPIO pins, power rails (3.3 V, 5 V), ground, 5 V/3.3 V sensor rail, plus commonly used interfaces (I²C, SPI, UART) clearly labeled

• Mounting: Header sockets or pads for standard 0.1″ header pins; board typically sized to fit development setups or breadboards

• Power switch or jumper selection for rail voltage, making it safe to share modules with different voltage requirements

• Useful for rapid prototyping, sensor-hub setups, IoT edge nodes and educational kits

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🎯 Typical Applications

• IoT & sensor hub deployment – Build a central board that hosts the ESP32 plus many sensors (environmental, motion, light, etc.) while simplifying wiring and power.

• Prototyping and modular systems – Rapidly connect shields or modules: just plug in sensors to labeled GVS pins and avoid confusion.

• Wearables or mobile projects – Use the USB Type-C or DC barrel input for flexible power options and select rail voltage for modules.

• Educational labs & training kits – Ideal for students: the breakout board gives clear pin labels, power options and logic rail flexibility to experiment safely.

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✅ Why You’ll Love It

This ESP32 expansion shield transforms your ESP32 development board into a versatile sensor/control hub, making wiring simpler, power options more flexible and module integration clearer. Whether you’re building an IoT node, starting an embedded project, or teaching electronics and sensors, this board gives you the structure and flexibility to go from prototype to deployment with fewer headaches.