ESP32S-DevKitC development board for 38PIN ESP32D Exponsion board

SKU: FA1053-0-5
Core Module

ESP32-WROOM-32D (38-Pin)
Processor

Dual-core 32-bit LX6 (Up to 240 MHz)
Memory

4MB SPI Flash / 520KB SRAM
Pin Row Width

25.5mm (Pin-to-Pin)
Baseboard Input

DC 6.5V – 12V (Via Barrel Jack)
Expansion Output

3.3V and 5.0V Selectable
USB Interface

Micro-USB or Type-C (Model Dependent)
Wireless

2.4GHz Wi-Fi + BT 4.2 / BLE
This professional-grade hardware kit pairs the high-performance ESP32S-DevKitC (ESP32-WROOM-32D) development board with a dedicated 38-Pin Expansion Shield. Optimized for 2025 IoT standards, this system is designed to provide industrial-grade stability, eliminating the connectivity issues and power fluctuations common with standard breadboard setups. 
Product Description
The ESP32S-DevKitC with 38-Pin Expansion Board is an all-in-one solution for rapid prototyping and deployment. The core board features the ESP32-WROOM-32D module, known for its superior RF performance and improved Wi-Fi/Bluetooth signal stability over older iterations. 
The accompanying Expansion Shield acts as a robust power and signal distribution hub. It breaks out the high-density 38-pin module into a “GVS” (Ground-Voltage-Signal) header format. This allows for direct, secure connections to sensors, actuators, and displays using standard jumper cables. With an onboard DC Barrel Jack and specialized voltage regulation, this kit can drive high-power peripherals—such as servos and relays—that would normally overwhelm a standard USB power source. 
Key Features
  • Enhanced RF Stability: The 32D module features an optimized PCB antenna for better signal penetration in complex wireless environments.
  • Industrial Power Management: The expansion board accepts a wide DC input (6.5V–12V) and provides stable, high-current 3.3V and 5V rails.
  • “GVS” Plug-and-Play Headers: Every GPIO pin is paired with dedicated Power and Ground pins, simplifying wiring and reducing the risk of short circuits.
  • Dual-Core Processing: Powered by the Xtensa® 32-bit LX6 dual-core processor, capable of up to 240 MHz for multitasking.
  • Hybrid Connectivity: Supports Wi-Fi (802.11 b/g/n) and Dual-Mode Bluetooth (Classic + BLE) simultaneously.
  • Mounting Holes: The baseboard includes four 3.5mm mounting holes for permanent installation in industrial control boxes or 3D-printed enclosures. 
Usage Scenarios
  • Business / B2B: Prototyping for industrial gateways, smart building sensors, and secure wireless monitoring stations.
  • Single User / Maker: Creating advanced home automation nodes (WLED, Home Assistant) that require multiple sensor inputs.
  • Education: A robust, reusable tool for university-level embedded systems labs where hardware reliability is a priority.
Q: What is the benefit of the "32D" module in this kit?

The “D” in ESP32-WROOM-32D stands for “Distributed.” It features an improved antenna design and a chip layout that offers better heat dissipation and RF stability compared to the older “32” or “32S” versions.

Q: Can I use the USB port and the DC Jack simultaneously?

Yes. The expansion board is designed with protection diodes. You can use the DC Jack to power your sensors and motors while the USB port remains connected to your computer for programming.

Q: Why choose the 38-pin version over the 30-pin?

The 38-pin layout exposes more of the ESP32’s internal GPIOs, allowing you more flexibility for SPI, I2C, and UART communications, as well as providing more dedicated power and ground pins for complex circuits.

Q: Do I need a driver for this board?

Depending on the onboard serial chip (CP2102 or CH340), you may need a driver. Most 2025 Windows 11 and macOS systems will recognize it automatically. If not, drivers can be found on the Silicon Labs or WCH official websites.

Q: How do I select between 3.3V and 5V for my sensors?

The expansion board features jumper caps that allow you to select the voltage level for specific pin headers, ensuring compatibility with both 3.3V logic and 5V peripherals.

Q: Is the core board removable?

Yes, the ESP32S-DevKitC sits in female headers on the expansion board and can be unplugged for replacement or for use in a final, custom PCB.

Related products