38 Pin NodeMCU ESP32S Development Board

The 38 Pin NodeMCU ESP32S Development Board is an advanced version of the popular ESP8266, featuring the ESP-WROOM-32 chipset with dual-core processing, integrated Wi-Fi, and Bluetooth (v4.2 BLE) capabilities. It is designed to simplify IoT development, offering easy integration, reliable performance, and high-speed data communication for smart devices and automation systems.

With its 38 GPIO pins, 12-bit ADCs, PWM outputs, and SPI, I2C, UART communication interfaces, the ESP32S is capable of handling complex tasks like sensor networks, home automation, wireless control, and real-time data monitoring.

⚙️ Key Features & Highlights:

• ✅ Powerful Dual-Core Processor: 32-bit Tensilica Xtensa LX6 CPU, up to 240 MHz.

• ✅ Integrated Wi-Fi + Bluetooth (BLE): 802.11 b/g/n and Bluetooth v4.2 for wireless connectivity.

• ✅ Large GPIO Count: 38 pins for sensors, modules, and external components.

• ✅ Wide Voltage Support: Operates at 3.3V with built-in 5V-to-3.3V regulator.

• ✅ Programming Compatibility: Fully compatible with Arduino IDE, PlatformIO, and MicroPython.

• ✅ Onboard USB-to-Serial Converter: Easy upload via micro-USB connection.

• ✅ Low Power Consumption: Sleep modes ideal for battery-powered IoT projects.

• ✅ Compact Design: Fits easily into NodeMCU enclosures or prototyping boards.

⚙️ Technical Specifications:

• Chipset: ESP-WROOM-32 (ESP32)

• Processor: Dual-Core Tensilica LX6, up to 240 MHz

• Operating Voltage: 3.3V

• Input Voltage (via USB): 5V

• Flash Memory: 4 MB

• SRAM: 520 KB

• GPIO Pins: 38

• Connectivity: Wi-Fi 802.11 b/g/n, Bluetooth v4.2 BLE

• Interfaces: SPI, I2C, UART, PWM, ADC, DAC

• Analog Input Pins: 12-bit ADC x 18 channels

• Digital I/O Pins: 30+ configurable

• Operating Temperature: -40°C to +85°C

• Dimensions: 57mm x 28mm x 8mm

⚙️ Applications & Use Cases:

The ESP32S NodeMCU 38 Pin Board is ideal for a wide range of IoT and embedded applications:

• 🌐 IoT Projects: Smart home, automation, and environmental monitoring.

• 💡 Wireless Communication: Connect sensors or devices using Wi-Fi or BLE.

• 🤖 Robotics & Drones: Integrate for real-time control and telemetry.

• 🏠 Home Automation Systems: Remote lighting, security, or climate control systems.

• 📡 Data Acquisition Systems: Send and receive sensor data via the cloud.

• 🔌 Prototyping: Works with Electronics Components, Arduino accessories, and Tools and Accessories.

⚙️ Precautions:

• ⚠️ Use 3.3V logic level for GPIOs to prevent damage.

• ⚠️ Do not connect high-voltage components directly.

• ⚠️ Ensure stable power supply during data transmission.

• ⚠️ Use a quality USB data cable for reliable programming.

• ⚠️ Avoid static discharge; handle with care.

▶️ YouTube Tutorial Video:

Watch ESP32S NodeMCU Setup & Programming Guide

🔹 Product Summary:

The 38 Pin NodeMCU ESP32S WiFi & Bluetooth Development Board is an all-in-one IoT microcontroller built for high-performance applications. With its dual-core processor, wireless connectivity, and broad pin compatibility, it’s the perfect board for developers, engineers, and students working on IoT, AIoT, and smart device prototypes.

Whether you’re creating a connected home system, wireless robot, or sensor-based automation, this board offers unmatched versatility, reliability, and ease of use.