DIYables ESP32 38 Pin Wide Dev Board ESP-WROOM-32 USB-C and Expansion Board Combo
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Quick Overview
This DIYables combo pairs an ESP32 38 pin wide development board with a matching solder-free expansion breakout board, so you get the microcontroller and a comfortable way to wire it up in one package. The dev board is built around the ESP-WROOM-32 module with a dual-core processor and integrated 2.4GHz WiFi and Bluetooth, and the full 38 pin wide layout leaves plenty of GPIO free for sensors, displays, relays, and expansion modules. A USB Type-C port paired with a CP2102 USB-to-serial converter keeps power delivery steady and makes flashing and serial monitoring reliable.
The expansion board takes the dev board in a solder-free socket, so it simply drops in and every pin becomes reachable without a soldering iron or fragile breadboard jumpers. Its double-layer PCB carries a well-aligned 38 pin breakout on both sides for stable signal transmission and tidy wiring. Three separate power inputs, a DC barrel jack, Micro USB, and Type-C, let you power the stack whichever way suits the bench or the finished build. The socket also fits other common 38 pin boards including NodeMCU-32S, Lua, ESP-WROOM-32D and 32U, and ESP-WROVER modules.
Ideal for smart home automation, wireless control, robotics, sensor networks, web servers, and embedded systems development. Development runs through Arduino IDE, with MicroPython and ESP-IDF also supported on the ESP32.
Key Features
- ESP-WROOM-32 Dual-Core Processor — Dual-core ESP32 microcontroller with strong performance for IoT and embedded work
- Built-in WiFi and Bluetooth — Integrated 2.4GHz WiFi and Bluetooth for wireless control, smart devices, and automation
- USB Type-C Connector — Modern USB Type-C interface for reliable power supply and data transfer
- CP2102 USB-to-Serial Chip — Onboard CP2102 converter for stable flashing and serial monitoring
- 38 Pin Wide Layout — Full wide-format board giving extensive GPIO access for sensors, displays, relays, and modules
- Solder-Free Expansion Socket — The ESP32 drops into the socket and every pin becomes accessible, no soldering required
- Double-Sided 38 Pin Breakout — Well-aligned breakout rows on both sides of the expansion board for organized wiring
- Double-Layer PCB — Stable, reliable signal transmission and solid mechanical support for the stack
- Three Power Input Options — DC barrel jack, Micro USB, and Type-C inputs on the expansion board for flexible powering
- Fits Other 38 Pin Boards — Socket also accepts NodeMCU-32S, Lua, ESP-WROOM-32D/32U, and ESP-WROVER boards
- Arduino IDE Compatible — Full support in Arduino IDE with its library ecosystem, plus MicroPython and ESP-IDF
- Tutorial Support — Step by step ESP32 tutorials are available online
- Versatile Applications — Smart home automation, wireless control, robotics, sensor networks, and embedded systems
- ...NOTE
- If you are using the ESP32 with analog sensors, you may need to configure the ADC with 11 dB attenuation to set the voltage reference range to handle up to 3.3V.
- The expansion board socket is built for 38 pin ESP32 boards. It does not fit 30 pin ESP32 boards or other layouts with a different pin count.
- ...NOTE
SPECIFICATION
| Specification | Value |
|---|---|
| Product Type | ESP32 Development Board and Expansion Board Combo |
| Module | ESP-WROOM-32 |
| Processor | Dual-core |
| WiFi | 2.4 GHz 802.11 b/g/n |
| Bluetooth | Bluetooth (BR/EDR and BLE) |
| USB Interface | USB Type-C |
| USB to Serial Chip | CP2102 |
| Dev Board Pin Count | 38 pins (wide version) |
| Expansion Board Socket | 38 pin, solder-free |
| Expansion Board PCB | Double-layer, double-sided breakout |
| Expansion Power Inputs | DC barrel jack, Micro USB, USB Type-C |
| Also Fits | NodeMCU-32S, Lua, ESP-WROOM-32D, ESP-WROOM-32U, ESP-WROVER |
| Operating Voltage | 3.3V |
| Input Voltage | 5V via USB, or via the expansion board DC jack |
| Package Quantity | 1 dev board and 1 expansion board |
| Compatibility | Arduino IDE, MicroPython, ESP-IDF |
| Applications | Smart home automation, wireless control, robotics, sensor networks, IoT |
PACKAGE
A package includes:
| Qty | Items |
|---|---|
| 1 | ESP32 38 Pin Wide Development Board (ESP-WROOM-32, USB Type-C, CP2102) |
| 1 | 38-Pin Solder-Free Expansion Breakout Board |
COMPATIBLE HARDWARE
- Arduino IDE (Windows, Mac, Linux) — Select an ESP32 dev module board type
- MicroPython firmware — Full ESP32 support with REPL and file system access
- ESP-IDF development environment — Official Espressif IoT Development Framework support
- NodeMCU-32S and Lua 38 pin boards — Fit the solder-free expansion socket
- ESP-WROOM-32D and ESP-WROOM-32U boards — Fit the solder-free expansion socket
- ESP-WROVER boards — Fit the solder-free expansion socket
- Temperature and humidity sensors — Digital or I2C connections via the breakout rows
- OLED and LCD displays — I2C and SPI displays for visual feedback
- Relay modules — GPIO control for switching higher power devices
- Servo motors and motor drivers — PWM output from the broken-out GPIO pins
- DC power adapters — Power the stack through the expansion board barrel jack
- Breadboards and jumper wires — Connect through the double-sided breakout rows