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Product Description
The ESP32 Expansion Board (38-Pin) is a heavy-duty breakout adapter designed to make wiring, prototyping, and sensor integration with standard 38-pin wide ESP32 development boards clean, secure, and organized. Expanding every single GPIO pin into dual terminal connection points accompanied by dedicated VCC and GND power rails, this adapter eliminates the tangled mess of jumper wires on crowded breadboards. It also features an external DC power input jack to supply stable, clean power to power-hungry sensors and actuators without overloading your microcontroller.
Essential for building reliable IoT prototypes, industrial automation panels, and advanced sensor test benches, this versatile breakout board combines secure screw or pin connections with robust power distribution.
⚠️ Compatibility Tip: Ensure your ESP32 development board is the wider 38-pin variant (typically measuring approximately 28mm between pin rows) to guarantee a proper fit into the board’s header sockets.
Technical & Architectural Highlights
Dual Pin Breakout: Every GPIO pin on the 38-pin ESP32 is expanded into multiple connection points along with dedicated 5V/3.3V and GND power rails.
External Power Jack: Features a standard DC barrel jack (or screw terminals) to supply external power directly to your sensors and modules safely.
Secure Header Sockets: Firmly holds your 38-pin wide ESP32 development board while providing clear pin-name silkscreen labeling.
Compact & Rugged: Designed for easy mounting into custom project enclosures or flat workshop test benches.
Technical Specifications
| Parameter | Value / Specification |
| Product Type | ESP32 Breakout / Expansion Board |
| Compatible Board | Standard 38-Pin Wide ESP32 Development Board |
| Pin Spacing (Row-to-Row) | Approx. 28 mm (Wide Version) |
| Power Input Interface | DC Jack / Screw Terminals (Varies by batch) |
| Operating Voltage | 5V / 3.3V DC |
| Board Dimensions | Approx. 78mm x 63mm |
Applications
IoT Prototyping Test Benches: Simplifying complex sensor wiring for multi-sensor environmental stations and data loggers.
Automation Control Boxes: Organizing relay modules, switches, and indicators connected to a 38-pin ESP32 microcontroller.
Educational Labs: Teaching microcontroller wiring and circuit design cleanly without loose breadboard connections.
What’s in the Box
1 x ESP32 Expansion Board 38-Pin (ESP32 development board sold separately).
All your IoT modules, expansion boards, and electronic components are available with fast shipping across Egypt from Pro Tronix!
