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ESP32 38-Pin Power Expansion Board | Type-C, Micro USB & DC Input

ESP32 38-Pin Power Expansion Board | Type-C, Micro USB & DC Input

🔥 7 sold•✓ In stock
$146.00 TWD
$146.00 TWD
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Short Product Description

The ESP32 38-Pin Power Expansion Board is an essential prototyping breakout module designed exclusively for 38-pin ESP-WROOM-32 development boards. Featuring triple power inputs (Type-C, Micro USB, and a DC 6.5-16V barrel jack), it solves the common issue of insufficient power during complex IoT and STEM projects. Whether you are driving multiple servos or testing sensors, this purple backboard ensures stable voltage delivery while eliminating messy breadboard wiring. Available in-stock atSun Cheong Computer Co. Ltd.in Sham Shui Po, our technical staff highly recommends this for DIY hobbyists looking to streamline their circuit designs.

Key Features

  • Triple Power Interfaces: Equipped with Type-C, Micro USB, and a DC socket to accommodate various power supply setups.
  • Broad 38-Pin Compatibility: Fits most standard 38-pin ESP32 and ESP-WROOM-32 development boards seamlessly.
  • Data & Power Passthrough: Allows you to power the board and download code simultaneously through the extended interfaces.
  • Expanded I/O Access: Breaks out all GPIO pins to clearly labeled headers for rapid and secure jumper wire connections.
  • Robust Purple PCB: High-quality double-sided circuit board ensures stable connections and high reliability for long-term projects.

Full Product Description

Triple Power Input for Stable IoT Prototyping

This expansion board provides three distinct power supply options—Type-C, Micro USB, and a DC barrel jack—to ensure your ESP32 receives consistent voltage under any load. Standard USB ports often struggle to deliver enough current when your IoT project involves multiple sensors, relays, or wireless transmissions, leading to frustrating brownouts and random reboots. By utilizing the onboard DC 6.5-16V power socket, you can safely inject external power to drive heavy loads while maintaining a stable 3.3V/5V logic level for your microcontroller.

Seamless 38-Pin ESP32 Compatibility

Designed specifically for 38-pin ESP32 and ESP-WROOM-32 modules, this backboard features a single-sided double-row female header for instant plug-and-play installation. It completely eliminates the need to balance your microcontroller on a wobbly breadboard. Every single GPIO pin is broken out into clearly labeled, easy-to-access header rows, allowing you to connect jumper wires securely and rapidly during the prototyping phase.

Pro Tip from Our Technicians

Always verify that your ESP32 module has exactly 38 pins before mounting it to this expansion board, as it will not fit the narrower 30-pin variants. Our Sham Shui Po DIY experts recommend using the DC barrel jack with a dedicated power adapter when running Wi-Fi and Bluetooth simultaneously, as this prevents the voltage drops that commonly cause wireless connection failures.

Technical Specifications
  • Product Type: Microcontroller Expansion / Breakout Board
  • Compatibility: Strictly for 38-Pin ESP32 / ESP-WROOM-32 / ESP32S Development Boards
  • Power Input Interfaces: USB Type-C, Micro USB, DC Barrel Jack
  • DC Input Voltage Range: DC 6.5V - 16V
  • Pin Header Layout: Single-sided double-row female design
  • Dimensions: 78mm x 53mm (7.78cm x 5.33cm)
  • Board Color: Purple
  • Package Includes: 1x Expansion Board (ESP32 Main Board NOT included)

Delivery Options

  • Local delivery within Hong Kong and in-store pickup.​
  • Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.​
  • Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).​
  • Estimated delivery time: 1–3 business days after dispatch (Hong Kong).​
  • In-store pickup details (location and time) will be confirmed by email or phone message.​
  • Delivery times are estimates and may be affected by weather or unforeseen circumstances.​

FAQ Section

  • Does this expansion board fit the 30-pin version of the ESP32?No, this specific expansion board is exclusively designed with a width and pin layout that only accommodates 38-pin ESP32 development boards.
  • Is it better to power the board via the Type-C port or the DC barrel jack?You should use the DC barrel jack (6.5-16V) if your project includes high-current components like motors or multiple relays, while the Type-C port is perfectly fine for basic code flashing and low-power sensor testing.
  • Do I need to solder my ESP32 to this expansion board?No soldering is required; the board features pre-soldered double-row female headers, allowing you to simply plug your 38-pin ESP32 directly into the sockets.
  • Can I bring my ESP32 to your Sham Shui Po store to check compatibility before buying?Yes, you are highly encouraged to bring your microcontroller to our Sun Cheong Computer Co. Ltd. physical store, where our staff can help you verify the pin count and fitment instantly.
  • Can I use this board to flash code to my ESP32?Yes, the expansion board supports data passthrough, meaning you can connect your PC to the Type-C or Micro USB port on the expansion board to upload code to the mounted ESP32.

Target Users / Applications

  • STEM educators building standardized IoT learning kits for classroom environments.
  • Smart home DIY developers needing a stable power base for ESP32-based sensor hubs.
  • Robotics hobbyists requiring secure jumper wire connections that won't disconnect during movement.
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