DIYables Expansion Board for 38-Pin ESP32, Breakout Board
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Quick Overview
The DIYables Expansion Board for 38-Pin ESP32 is a versatile breakout board designed specifically for 38-pin ESP32 modules including NodeMCU-32S, Lua, ESP-WROOM-32D, ESP-WROOM-32U, and ESP-WROVER development boards. This solder-free expansion board provides convenient access to all GPIO pins with a well-aligned 38-pin breakout layout on both sides, making it perfect for rapid prototyping, testing, and educational purposes. The double-layer PCB design ensures stable and reliable signal transmission, while the socket-style design allows you to simply insert your ESP32 board without any soldering required.
This expansion board features three flexible power supply options — DC barrel jack, Micro USB, and USB Type-C — giving you multiple ways to power your ESP32 projects. The double-sided pin breakout provides easy access for connecting sensors, displays, motors, and other peripherals with jumper wires or breadboards. The robust PCB construction ensures solid connectivity and stable operation, making it ideal for both temporary prototyping and more permanent project setups. Compatible with Arduino IDE, ESP-IDF, and MicroPython development environments.
Ideal for DIY electronics, IoT development, smart home projects, and embedded systems programming. Perfect for ESP32 enthusiasts who need a convenient way to access all pins without soldering, makers building WiFi-connected projects, educators teaching embedded systems, and professionals prototyping commercial IoT products. The solder-free design makes it easy to swap ESP32 boards for testing or reuse the expansion board across multiple projects.
Key Features
- Wide ESP32 Compatibility — Designed for NodeMCU-32S, ESP-WROOM-32D/32U, ESP-WROVER, and other 38-pin ESP32 modules
- Solder-Free Design — Simply insert ESP32 into the socket without any soldering required
- Triple Power Input Options — DC barrel jack, Micro USB, and USB Type-C for flexible powering
- Double-Layer PCB — Stable and reliable signal transmission with professional PCB construction
- 38-Pin Breakout Layout — All GPIO pins broken out on both sides for easy access and wiring
- Easy Prototyping — Quick setup for testing, development, and educational projects
- Solid Connectivity — Well-aligned pin headers ensure stable connections with jumper wires
- Reusable Design — Swap ESP32 boards easily without desoldering for multiple projects
- Breadboard Friendly — Pin spacing compatible with standard breadboards and jumper wires
- Voltage Regulator — On-board power regulation for stable operation from multiple power sources
- LED Indicators — Power LED for visual confirmation of board operation
- Arduino IDE Compatible — Works with Arduino IDE, ESP-IDF, and MicroPython programming environments
- Tutorial Support — Comprehensive ESP32 tutorials for WiFi, Bluetooth, web servers, and IoT projects
- Versatile Applications — Perfect for IoT development, smart home projects, DIY electronics, and embedded systems
SPECIFICATION
| Specification | Value |
|---|---|
| Product Type | ESP32 Expansion Breakout Board |
| Compatible Modules | NodeMCU-32S, ESP-WROOM-32D, ESP-WROOM-32U, ESP-WROVER, Lua ESP32 (38-pin modules) |
| Pin Configuration | 38-pin socket with double-sided breakout |
| PCB Design | Double-layer PCB for stable signal transmission |
| Connection Type | Solder-free socket design |
| Power Input Options | DC barrel jack (5.5 x 2.1mm), Micro USB, USB Type-C |
| Input Voltage | 5V DC (via any of the three power inputs) |
| Operating Voltage | 3.3V (with on-board voltage regulator) |
| Voltage Regulator | Yes, converts 5V input to 3.3V for ESP32 |
| Power LED Indicator | Yes, for visual power confirmation |
| Pin Headers | 2.54mm pitch, compatible with breadboards and jumper wires |
| Breakout Layout | All 38 GPIO pins accessible on both sides |
| Board Material | FR-4 fiberglass PCB |
| Dimensions | 82mm x 55mm x 15mm (approx.) |
| Weight | ~25g |
| Package Quantity | 1 piece (ESP32 board not included) |
| Compatibility | Arduino IDE, ESP-IDF, MicroPython, CircuitPython |
| Applications | IoT development, prototyping, smart home projects, DIY electronics, embedded systems, educational projects, WiFi/Bluetooth applications |
COMPATIBLE HARDWARE
- NodeMCU-32S ESP32 Board — 38-pin WiFi and Bluetooth development board
- ESP-WROOM-32D Module — Dual-core ESP32 with PCB antenna
- ESP-WROOM-32U Module — Dual-core ESP32 with U.FL external antenna connector
- ESP-WROVER Module — ESP32 with PSRAM for memory-intensive applications
- Lua ESP32 Development Board — 38-pin ESP32 board with Lua support
- Temperature and Humidity Sensors (DHT11, DHT22, BME280) — I2C and digital interface sensors
- OLED and LCD Displays — I2C and SPI displays for visual feedback
- Motion Sensors (PIR, Ultrasonic) — Digital GPIO interface for detection applications
- Relay Modules — GPIO control for high-power device switching
- Servo Motors — PWM control for precise positioning
- LED Strips (WS2812B, NeoPixel) — PWM and digital control for RGB lighting
- SD Card Modules — SPI interface for data logging and storage
- GPS Modules — UART interface for location tracking
- RFID Readers — SPI interface for access control projects
- Motor Driver Modules (L298N, TB6612) — PWM control for DC and stepper motors
- Breadboards and Jumper Wires — For prototyping and sensor connections
