ESP-32 38PIN development board WIFI+Bluetooth 2 in 1 dual-core CPU

ESP-32 38-Pin Development Board – WiFi + Bluetooth Dual-Core CPU | Description

The ESP-32 38-Pin Development Board is a high-performance, feature-rich microcontroller platform designed for IoT, smart devices, automation, robotics, and embedded system applications. Powered by the advanced ESP32 dual-core processor, this board combines WiFi and Bluetooth connectivity into a single compact and powerful solution.

With its 38 exposed GPIO pins, higher processing speed, and extensive peripheral support, this development board is ideal for students, hobbyists, educators, and professional developers working on modern connected projects.

Processor & Wireless Core

At the heart of the board is the ESP32 SoC, delivering exceptional performance and multitasking capability.

• Microcontroller: ESP32

• CPU Architecture: Dual-core 32-bit Tensilica Xtensa LX6

• Clock Speed: Up to 240 MHz

• Wireless Connectivity:

  • WiFi: IEEE 802.11 b/g/n (2.4 GHz)

  • Bluetooth: Bluetooth v4.2 (Classic + BLE)

The dual-core architecture allows simultaneous handling of networking, sensor processing, and real-time control tasks.

Memory

• Flash Memory: Typically 4MB

• SRAM: 520 KB

This memory configuration supports advanced applications such as web servers, cloud connectivity, OTA updates, and complex sensor data processing.

GPIO & Peripheral Support (38-Pin Version)

The 38-pin layout provides extensive access to the ESP32’s powerful I/O capabilities:

• GPIO Pins: Up to 34 (depending on configuration)

• Analog Inputs: Multiple 12-bit ADC channels

• DAC Outputs: 2

• PWM: Supported on most GPIO pins

• Communication Interfaces:

  • UART

  • SPI

  • I²C

  • I²S

All pins are clearly labeled for easy development and prototyping.

USB Interface & Programming

• USB Port: Micro-USB

• USB-to-Serial Converter: CP2102 / CH340 (model dependent)

• On-board Buttons: BOOT and RESET

The board supports fast and reliable programming and debugging through USB.

Power Supply

• Operating Voltage: 3.3V

• Power Input Options:

  • USB power

  • Vin pin

On-board voltage regulation ensures stable power delivery to the ESP32 and connected peripherals.

Software & Development Support

The ESP-32 38-Pin Development Board supports multiple development environments:

• Arduino IDE (C/C++)

• ESP-IDF (official Espressif framework)

• MicroPython

• PlatformIO

It supports networking protocols such as HTTP, HTTPS, MQTT, TCP/IP, WebSockets, making it ideal for cloud-connected applications.

Design & Form Factor

• Breadboard-friendly design

• Integrated PCB antenna

• Compact yet feature-rich layout

• Durable PCB suitable for repeated use

The 38-pin version offers maximum flexibility for projects requiring many I/O connections.

Typical Applications

• IoT and smart home systems

• Wireless sensor networks

• Home and industrial automation

• Robotics and motor control

• Cloud-connected devices

• Data logging and monitoring

• Educational and research projects

Summary

The ESP-32 38-Pin Development Board WiFi + Bluetooth Dual-Core CPU is a powerful and versatile development platform that combines high processing performance, dual wireless connectivity, and extensive I/O support. Its flexibility, strong community support, and advanced features make it an excellent choice for modern IoT, automation, and embedded system projects.