ESP32 ESP-32S 30P NodeMCU Development Board Wireless Wi-Fi

ESP32 ESP-32S 30-Pin NodeMCU Development Board – Description

The ESP32 ESP-32S 30-Pin NodeMCU Development Board is a powerful, feature-rich wireless microcontroller platform designed for IoT, smart devices, automation, robotics, and embedded system projects. Built around the advanced ESP32 SoC, this board integrates WiFi, Bluetooth, high-performance dual-core processing, and extensive I/O capabilities in a compact, developer-friendly form factor.

It is an ideal choice for students, hobbyists, educators, and professional developers who require strong wireless connectivity and processing power in a single board.

Microcontroller & Processing Power

At the heart of the board is the ESP32-S module, delivering significantly higher performance than ESP8266-based boards.

• 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)

This allows simultaneous handling of networking, sensor processing, and real-time control tasks.

Memory

• Flash Memory: Typically 4MB

• SRAM: 520 KB

The generous memory enables advanced applications such as web servers, MQTT clients, OTA updates, and sensor data processing.

Input / Output (30-Pin Version)

The 30-pin layout provides wide access to ESP32’s powerful peripherals:

• GPIO Pins: Up to 25

• Analog Inputs: Multiple ADC channels (12-bit)

• DAC Outputs: 2

• PWM: Supported on most GPIOs

• Interfaces:

  • UART

  • SPI

  • I²C

  • I²S

All pins are clearly labeled, making development and prototyping easier.

USB Interface & Programming

• USB Port: Micro-USB

• USB-to-Serial Interface: CP2102 / CH340 (varies by model)

• Plug-and-play programming with driver support

Programming is simple and fast using common development tools.

Power Supply

• Operating Voltage: 3.3V

• Power Input Options:

  • USB

  • Vin pin

On-board voltage regulation ensures stable operation for both the ESP32 and connected peripherals.

Software & Development Support

The ESP32 NodeMCU 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, and more.

Design & Form Factor

• Compact and breadboard-friendly design

• Integrated PCB antenna for wireless communication

• On-board BOOT and RESET buttons

• Strong community support and documentation

The 30-pin version balances compact size with excellent I/O availability.

Typical Applications

• IoT and smart home systems

• Wireless sensor networks

• Home automation

• Robotics and motor control

• Cloud-connected devices

• Data logging and monitoring

• Industrial and educational projects

Summary

The ESP32 ESP-32S 30-Pin NodeMCU Development Board is a powerful and versatile wireless development platform offering WiFi, Bluetooth, dual-core processing, and rich I/O support. With strong performance, flexible programming options, and wide community support, it is an excellent choice for modern IoT, automation, and embedded system applications.