38 Pin NodeMCU ESP32S ESP-WROOM-32 Development Board with CH9102X

Powerful Wi-Fi and Bluetooth Development Platform for IoT Projects

Build connected electronics and embedded systems with the 38 Pin NodeMCU ESP32S Development Board, powered by the ESP-WROOM-32 wireless module and featuring a CH9102X USB-to-Serial interface.

Combining a dual-core 32-bit Xtensa LX6 processor operating at up to 240MHz, integrated 2.4GHz Wi-Fi and Bluetooth connectivity, this development board provides a versatile platform for electronics prototyping, wireless communication and IoT development.

Its 38-pin header arrangement provides access to a wide range of GPIO and peripheral connections, including ADC, DAC, PWM, UART, SPI and I2C interfaces.

The CH9102X USB-to-UART bridge makes computer communication, firmware uploading and serial debugging convenient.

Whether you are a student, electronics enthusiast, engineer or IoT developer, this ESP32S development board is a practical choice for building and testing wireless applications.

Key Features

1. Dual-Core ESP32 Processor

Powered by the ESP-WROOM-32 module, featuring a dual-core Xtensa LX6 32-bit processor with a clock frequency of up to 240MHz.

2. Integrated 2.4GHz Wi-Fi

Supports IEEE 802.11 b/g/n Wi-Fi connectivity for wireless networking, internet-connected devices and remote monitoring applications.

3. Bluetooth and BLE Connectivity

Supports Bluetooth 4.2 BR/EDR and Bluetooth Low Energy, enabling communication with compatible wireless devices, sensors and mobile applications.

4. CH9102X USB-to-Serial Interface

The integrated CH9102X bridge converts USB communication into UART serial communication, supporting firmware uploading and serial monitoring.

5. 38-Pin Development Layout

Features two rows of 19 pins, providing access to power, ground, GPIO and peripheral connections. Pin availability and placement should be checked against the supplied board revision.

6. Multiple Peripheral Interfaces

Supports a range of ESP32 peripherals, including:

• UART

• SPI

• I2C

• I2S

• ADC

• DAC

• PWM

• Capacitive touch sensing

7. Flexible Embedded Development

Suitable for programming through ESP-IDF and Arduino IDE with the appropriate ESP32 development-board support.

Technical Specifications

Typical Applications

IoT and Wireless Projects

Develop internet-connected devices for remote monitoring, wireless communication and data collection.

Smart Home Automation

Build wireless lighting controls, smart switches, connected sensors and home automation prototypes.

Robotics and Motor Control

Develop Bluetooth-controlled robots, motor control systems and wireless robotics applications using suitable external motor drivers.

Environmental Monitoring

Connect temperature, humidity, light and other compatible sensors to create wireless monitoring systems.

Electronics Prototyping

Experiment with GPIO, ADC, DAC, PWM and serial communication for embedded hardware development.

Wireless Sensor Networks

Build connected sensor nodes and data-logging applications using Wi-Fi and Bluetooth.

Educational and Research Projects

An excellent platform for learning embedded programming, wireless communication and microcontroller interfacing.

USB Programming and Development

The CH9102X USB-to-UART bridge provides a convenient connection between your computer and the ESP32 development board.

For development:

1. Connect the board to your computer using a suitable USB data cable.

2. Install the compatible CH9102X driver if required by your operating system.

3. Open Arduino IDE or ESP-IDF.

4. Select the appropriate ESP32 board configuration.

5. Choose the detected serial port.

6. Upload your firmware and test your application.

Important Electrical and Installation Notes

• ESP32 GPIO operates at 3.3V logic. Do not connect 5V signals directly to GPIO pins.

• GPIO34, GPIO35, GPIO36 and GPIO39 are input-only.

• GPIO6 to GPIO11 are associated with the module's SPI flash and should not be used as ordinary GPIO.

• GPIO0, GPIO2, GPIO5, GPIO12 and GPIO15 have boot-strapping functions; use them carefully.

• Use the correct power input and follow the board's printed pin labels.

• Use appropriate external drivers for motors, relays and other high-current loads.

Why Choose the 38 Pin NodeMCU ESP32S?

This development board combines Wi-Fi, Bluetooth, dual-core processing and extensive peripheral support in a single development platform.

Its CH9102X USB-to-Serial interface simplifies programming and debugging, while the 38-pin layout provides flexibility for connecting external electronic components.

It is suitable for students, makers, engineers and developers working on practical IoT and embedded systems projects.

Explore Related ESP32 Development Boards

Looking for other ESP32 development platforms? Explore more products from Electronics Hub:

WROOM ESP32 WiFi Microcontroller Development Board

Explore another ESP32 development option for wireless IoT and embedded programming.

https://electronicshub.pk/collections/esp-iot-boards/products/wroom-esp32-wifi-based-microcontroller-development-board

Espressif ESP32 WROOM 32D Development Board

Explore the Espressif ESP32 development platform for embedded and wireless applications.

https://electronicshub.pk/collections/esp-iot-boards/products/espressif-esp32-wroom-32d-development-board-in-pakistan

ESP32-CAM WiFi + Bluetooth Camera Development Board

For camera-based IoT applications, image transmission and wireless monitoring.

https://electronicshub.pk/product/esp32-cam-wifi-bluetooth-camera-module-development-board-esp32-with-camera-module-ov2640-for-arduino-in-pakistan/

Order from Electronics Hub

Get started with wireless electronics, embedded programming and IoT development using the 38 Pin NodeMCU ESP32S Development Board.