ESP32S-DevKitC development board for 38PIN ESP32S Exponsion board

SKU: FA1053-0-4
Core Module

ESP32-WROOM-32S (38-Pin)
Flash Memory

4MB SPI Flash
SRAM

520KB Internal
Expansion Input

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

3.3V and 5V (Selectable/Simultaneous)
USB Interface

Micro-USB or Type-C (Model dependent)
Logic Level

3.3V
Dimensions

Baseboard: 66mm x 77mm (Standard Footprint)
This ESP32S-DevKitC Development Board & 38-Pin Expansion System is a professional-grade IoT prototyping kit. Designed for the 2025 technology landscape, it combines the high-performance ESP32-WROOM-32S module with a dedicated expansion shield, providing a stable, industrial-ready alternative to fragile breadboard setups.
Product Description
The ESP32S-DevKitC (38-Pin) is a dual-core, high-speed wireless platform built for scalability. While standard ESP32 boards often struggle with power stability when connected to multiple sensors, this kit includes a specialized Expansion Board (Shield) that serves as a centralized power and signal hub.
The expansion board breaks out all 38 pins of the ESP32S into “GVS” (Ground-Voltage-Signal) headers. This allows for “one-plug” connectivity for sensors, servos, and displays. With an onboard DC Barrel Jack supporting up to 12V input, the system can drive high-power peripherals that would normally cause a standard USB-powered board to crash or “brown-out.” This makes it the ideal choice for business-to-business (B2B) rapid prototyping and advanced DIY automation.
Key Features
  • Dual-Core LX6 Microprocessor: Runs up to 240MHz, allowing one core to handle wireless connectivity (Wi-Fi/BT) while the other handles complex application logic.
  • Industrial Power Regulation: The expansion board features high-efficiency onboard regulators that convert 6.5V–12V DC input into clean 5V and 3.3V rails.
  • Plug-and-Play GVS Headers: Every GPIO is paired with a dedicated 5V/3.3V and GND pin, drastically reducing wiring complexity and errors.
  • Hybrid Wireless Connectivity: Supports 2.4GHz Wi-Fi (802.11 b/g/n) and Dual-Mode Bluetooth (Classic + BLE) simultaneously.
  • Breadboard Eliminator: The shield includes 4x 3mm mounting holes for secure installation in industrial control panels or custom enclosures.
  • High Pin Density: The 38-pin configuration offers the maximum possible I/O breakout for the ESP32-WROOM-32S module.
Usage Scenarios
  • Business/Commercial: Rapid development of smart-city sensors, industrial gateways, and retail automation where hardware reliability is non-negotiable.
  • Advanced Makers: Building complex home automation hubs (Home Assistant/ESPHome) that require multiple I2C, SPI, and UART sensors.
  • Educational Institutions: A clean, safe, and reusable platform for university-level embedded systems and wireless networking labs.
Q: What is the difference between ESP32 and ESP32S?

The “S” typically refers to the ESP32-WROOM-32S module, which features an optimized PCB antenna design and improved RF performance for better Wi-Fi stability compared to older versions

Q: Is the expansion board wide enough for the 38-pin module?

Yes. This expansion board is specifically designed for the 38-pin DevKitC. It features a precision-fit socket that ensures all pins are accessible without overlapping

Q: Can I drive 5V servos directly from this kit?

Yes. By powering the expansion board via the DC Barrel Jack (9V-12V), the 5V pins on the shield can provide the high current required for servos, which the USB port alone cannot handle.

Q: Do I need a driver for the ESP32S-DevKitC?

Depending on the onboard serial chip (CP2102 or CH340), you may need to install a driver. Most 2025 Windows/Mac/Linux systems will recognize the board automatically.

Q: Can I use this for battery-powered projects?

Yes. You can connect a 7.4V Li-ion battery pack to the DC Jack or use the Vin pins on the expansion board to provide power for remote deployments

Q: Is the 38-pin layout compatible with 30-pin software?

Most code will run, but you must update your pin definitions (GPIO numbers) in your code to match the 38-pin hardware map.

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