🔶 ESP32 NodeMCU Development Board ESP32-DevKit 38-Pin Expansion – WiFi & Bluetooth (Multiple Options)
📦 Overview
This listing offers a flexible multi-variation option for the popular ESP32 NodeMCU 38-pin platform.
You can choose to purchase the ESP32-DevKit development board, the 38-pin expansion / base board,
or both together as a convenient bundle.
The ESP32 provides powerful dual-core processing with built-in WiFi and Bluetooth, while the expansion board
breaks out all GPIO pins to clearly labelled headers and screw terminals, making prototyping and permanent installations
much easier.
⚠️ IMPORTANT: Please select the correct option from the variation menu:
• ESP32 Dev Board ONLY
• 38-Pin Expansion Board ONLY
• ESP32 Dev Board + Expansion Board (Bundle)
🔧 What Each Option Includes
-
ESP32-DevKit Board: Dual-core ESP32 microcontroller with USB programming, WiFi 2.4 GHz and Bluetooth (Classic + BLE).
-
38-Pin Expansion Board: Passive breakout/base board with screw terminals and labelled headers for all ESP32 GPIO pins.
-
Bundle Option: ESP32-DevKit pre-matched with the 38-pin expansion board for immediate use.
⚙️ ESP32-DevKit (Controller) – Key Specifications
- MCU: ESP32 dual-core up to 240 MHz
- Wireless: WiFi 802.11 b/g/n + Bluetooth Classic & BLE
- Logic Voltage: 3.3 V
- Power: USB 5 V or VIN
- Interfaces: GPIO, ADC, DAC, PWM, UART, SPI, I²C, I²S
- Programming: Arduino IDE, ESPHome, MicroPython
⚙️ 38-Pin Expansion Board – Key Specifications
- Compatibility: ESP32 NodeMCU / ESP32-DevKit (38-pin)
- Function: GPIO breakout / base shield
- Connection Types: Screw terminals + header pins
- Power Rails: 3.3 V, 5 V, GND breakout
- Passive board – no active components
🔌 How It’s Used
1. Insert the ESP32-DevKit into the 38-pin expansion board headers
2. Power the ESP32 via USB
3. Connect sensors, relays, displays or motors to the screw terminals
4. Program using Arduino IDE or ESPHome
The expansion board does not add functionality — it provides safer, cleaner and more reliable access to ESP32 GPIO pins.
💡 Possible Uses
- Smart-home automation nodes (relays, lights, sensors)
- Home Assistant ESPHome devices
- IoT dashboards and data loggers
- Educational ESP32 learning kits
- Permanent installations using screw terminals
- Robotics and automation control projects
📦 Package Includes (Varies by Selection)
- ESP32-DevKit Board (if selected)
- 38-Pin Expansion / Base Board (if selected)
📝 Recommended eBay Title
ESP32 NodeMCU ESP32-DevKit 38-Pin Expansion Board WiFi Bluetooth (Multiple Options)
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