ESP32U WiFi + BLE Bluetooth Board Type-C (38 Pin) (Pre-Soldered)

Overview

The ESP32U WiFi + BLE Bluetooth Board Type-C (38 Pin) is a compact, high-performance development board built around the ESP32 microcontroller. It integrates 2.4 GHz Wi-Fi and Bluetooth Low Energy to support wireless IoT, smart home, and automation projects. With a USB Type-C connector and pre-soldered header pins, the board is ready for rapid prototyping and educational use.

Key Features

• Dual connectivity: Wi-Fi (802.11 b/g/n) and Bluetooth Low Energy (BLE) for flexible wireless communication
• USB Type-C interface for reliable power delivery and easy programming
• 38 GPIO pins provide broad interfacing options for sensors, actuators, displays, and modules
• Pre-soldered headers for plug-and-play compatibility with breadboards and jumper wires
• High-performance dual-core ESP32 processor for multitasking and real-time control
• Wide software support including Arduino IDE, ESP-IDF, and MicroPython

Technical Specifications

• Microcontroller: ESP32 dual-core
• Wireless: Wi-Fi 2.4 GHz (802.11 b/g/n) and Bluetooth Low Energy (BLE)
• USB Interface: USB Type-C (power and programming)
• GPIO: 38 pins
• Operating voltage: 3.3 V (logic)
• Input power: 5 V via USB
• Maximum clock speed: up to 240 MHz
• Flash memory: typically 4 MB
• Programming support: Arduino IDE, ESP-IDF, MicroPython

Compatible Software and Tools

• Arduino IDE: easy entry for beginners with many community libraries
• ESP-IDF: Espressif official framework for advanced applications and optimization
• MicroPython: lightweight Python runtime for quick scripting and education
• Serial monitor and common USB-C flashing tools supported on Windows, macOS, and Linux

Applications

• IoT and smart home devices (sensors, switches, gateways)
• Wireless sensor networks and data loggers
• Home automation and remote monitoring systems
• Robotics, motor control, and automation projects
• Educational platforms and prototyping in classrooms and labs

Advantages

• Ready-to-use board with pre-soldered headers speeds up prototyping
• Reliable, fast wireless connectivity with both Wi-Fi and BLE
• Compact design with extensive I/O for versatile hardware projects
• Large community and abundant libraries make development faster

Safety and Handling

• Power the board using a regulated 5 V USB supply via the Type-C port
• Do not apply voltages above 3.3 V to GPIO pins to avoid damage
• Observe electrostatic discharge (ESD) precautions when handling the board

Getting Started

1. Connect the board to your computer using a USB Type-C cable and a regulated 5 V port.
2. Install the required drivers if prompted by your operating system.
3. Select the ESP32 board in Arduino IDE or set up ESP-IDF/MicroPython toolchain.
4. Upload a sample sketch or MicroPython script to test Wi-Fi and GPIO functionality.

Frequently Asked Questions

• Can I power external sensors from the board? For low-current sensors, power from the 3.3 V output is possible. Check the sensor current requirements and avoid drawing excessive current from the board regulator.
• Which development environments are supported? Arduino IDE, ESP-IDF, and MicroPython are all supported, allowing flexibility from beginner to advanced development workflows.

Note: Images are for illustration only. Actual board layout, markings, and components may vary slightly.