ESP32 WiFi+Bluetooth Dual Core ESP32 Development Board 38Pin

Product Description

The ESP32 38-Pin Development Board is a versatile and powerful microcontroller development platform featuring integrated Wi-Fi, Bluetooth, and Bluetooth Low Energy (BLE) connectivity. Based on the ESP32 chip, it is designed for a wide range of IoT, automation, robotics, wireless communication, sensor, and embedded applications.

The board features a dual-core Xtensa 32-bit LX6 processor with an adjustable clock frequency of up to 240MHz, providing sufficient processing performance for applications ranging from low-power sensor networks to more demanding tasks such as audio streaming, voice processing, and data communication.

A built-in CP2102 USB-to-TTL converter provides reliable USB serial communication with a computer and supports automatic programming, eliminating the need for manually switching between programming and operating modes. The board is compatible with the Arduino ESP32 development environment and can also be developed using supported Windows and Linux environments.

With 4MB SPI Flash, 520KB SRAM, extensive GPIO, UART, I2C, I2S, SPI, SDIO, capacitive touch, Hall sensor, and other peripheral interfaces, the ESP32 provides a flexible platform for developing connected and intelligent embedded devices.

Features

• 38-pin ESP32 development board
• Integrated Wi-Fi connectivity
• Integrated Bluetooth and BLE
• Dual-core Xtensa 32-bit LX6 CPU
• Clock frequency adjustable from 80MHz to 240MHz
• CP2102 USB-to-TTL serial converter
• Automatic programming/download support
• Compatible with Arduino ESP32
• Supports Windows and Linux development environments
• 4MB SPI Flash
• 520KB on-chip SRAM
• 448KB ROM
• 8KB RTC SRAM for low-power operation
• Deep-sleep and low-power operating modes
• Capacitive touch sensor support
• Integrated Hall sensor
• UART, SPI, I2C, and I2S interfaces
• SDIO and SD card interface support
• Ethernet interface support
• Suitable for IoT and embedded applications
• Immersion-gold PCB finish

Specifications

Parameter	Specification
Product Type	ESP32 Development Board
Board Version	38-Pin
MCU	ESP32
CPU	Dual-Core Xtensa 32-bit LX6
Clock Frequency	80MHz – 240MHz
Wi-Fi	Integrated
Bluetooth	Integrated
BLE	Supported
USB-to-TTL	CP2102
ROM	448KB
SRAM	520KB
RTC SRAM	8KB
SPI Flash	4MB
GPIO	38-Pin Board
Interfaces	UART, SPI, I2C, I2S, SDIO
Other Peripherals	Capacitive Touch, Hall Sensor
Programming	USB Serial / Automatic Download
Development Support	ESP32 Arduino, Windows, Linux

Design and Construction

The ESP32 development board is designed in a compact 38-pin form factor, providing convenient access to the ESP32’s GPIO and peripheral interfaces. The board uses an immersion-gold PCB finish for improved contact reliability and durability.

The onboard CP2102 USB-to-TTL converter provides a convenient connection between the development board and a computer. This allows users to upload programs, monitor serial data, and communicate with the ESP32 without requiring a separate USB-to-serial converter.

The board provides access to multiple digital interfaces and peripherals, allowing external sensors, displays, motors, communication modules, storage devices, and other components to be connected.

Working Principle

The ESP32 acts as the main processing unit of the development board. It executes the user’s programmed application and controls connected sensors, actuators, and peripherals.

The integrated Wi-Fi, Bluetooth, and BLE capabilities allow the board to communicate wirelessly with smartphones, computers, routers, cloud platforms, and other connected devices.

Programs can be developed using compatible ESP32 development environments such as the Arduino IDE and uploaded through the CP2102 USB-to-TTL interface. The automatic download feature simplifies programming by automatically switching the ESP32 into the required programming mode.

For battery-powered applications, the ESP32 supports deep-sleep and low-power operation, allowing the system to reduce power consumption while maintaining selected monitoring functions.

Connectivity and Peripherals

The ESP32 provides a wide range of integrated interfaces for connecting external hardware, including:

• UART: Serial communication with external devices.
• I2C: Communication with sensors, displays, and other peripherals.
• SPI: High-speed communication with compatible devices.
• I2S: Suitable for digital audio applications.
• SDIO/SD: Interface support for storage and related peripherals.
• Capacitive Touch: Supports touch-based input.
• Hall Sensor: Enables magnetic-field sensing.
• Ethernet: Supports suitable Ethernet-based applications.

Low-Power Operation

The ESP32 includes several power-management capabilities for applications where energy efficiency is important. During deep-sleep operation, the main CPU can be powered down while selected low-power functions continue monitoring the system.

This makes the board suitable for battery-powered IoT devices, wireless sensors, remote monitoring systems, and other applications requiring low-power operation.

Development Support

The board can be programmed using the ESP32 Arduino framework, making it suitable for both beginners and experienced developers. It can also be developed using supported Linux and Windows environments.

The USB-to-TTL interface simplifies firmware uploading and serial debugging, while automatic download support makes repeated programming more convenient.

Applications

• IoT Devices: Develop connected sensors and smart devices.
• Home Automation: Control lights, appliances, sensors, and other devices.
• Robotics: Provide wireless control and processing for robots.
• Wireless Sensor Networks: Collect and transmit sensor data.
• Smart Home Systems: Connect and control household devices.
• Industrial Automation: Suitable for monitoring and control applications.
• Bluetooth Projects: Develop Bluetooth-enabled devices and controllers.
• BLE Applications: Build low-power Bluetooth communication systems.
• Wi-Fi Projects: Create web-connected and network-enabled devices.
• Audio Applications: Suitable for compatible audio streaming and processing projects.
• Remote Monitoring: Transmit sensor and system information wirelessly.
• Wearable Devices: Suitable for compact wireless embedded projects.
• Educational Projects: Useful for learning microcontrollers, IoT, Wi-Fi, and Bluetooth.
• Embedded Systems: Suitable for custom electronics and automation projects.

Package Includes

• 1 × ESP32 38-Pin Wi-Fi Bluetooth BLE Development Board with CP2102

Product Disclaimer

Product images are provided for reference and may differ slightly from the actual product in terms of colour, component placement, PCB layout, markings, or appearance depending on the manufacturing batch.

Specifications are based on the provided product information and may vary depending on the specific ESP32 board version or manufacturer. Please verify the board’s pin configuration, power requirements, USB interface, and technical specifications before connecting external components.

Always follow the manufacturer’s recommended operating conditions and safety guidelines when using the development board.