ESP32-WROOM-32U WiFi Bluetooth Module

ESP32-WROOM-32U WiFi + Bluetooth Module – External IPEX Antenna Connector

Buy the ESP32-WROOM-32U External Antenna WiFi and Bluetooth Module online in Pakistan from Robostan.pk. Manufactured by Espressif Systems, this compact wireless microcontroller module combines a powerful dual-core processor, 2.4GHz WiFi, Bluetooth Classic, and Bluetooth Low Energy connectivity for IoT, robotics, industrial automation, and embedded electronics projects.

Featuring an external IPEX/U.FL antenna connector and 4MB, 8MB, or 16MB Flash memory options, the ESP32-WROOM-32U provides a flexible wireless development platform for custom PCB designs and connected electronic devices.

Unlike the ESP32-WROOM-32D module, which uses a built-in PCB antenna, the ESP32-WROOM-32U supports an external antenna, allowing engineers to select a compatible antenna suitable for their installation requirements.

Key Features

• Original Espressif ESP32-WROOM-32U module family
• Powerful dual-core 32-bit Xtensa LX6 processor
• Maximum processor frequency up to 240MHz
• Built-in 2.4GHz WiFi connectivity
• Supports IEEE 802.11 b/g/n wireless standards
• Bluetooth 4.2 Classic and Bluetooth Low Energy support
• External IPEX/U.FL-compatible antenna connector
• Available 4MB, 8MB, and 16MB Flash memory variants
• 520KB on-chip SRAM
• Multiple programmable GPIO connections
• Supports UART, SPI, I2C, I2S, PWM, ADC, and DAC interfaces
• Integrated capacitive touch sensing capability
• Low-power operating and sleep modes
• Compact surface-mount module design
• Compatible with Arduino IDE and ESP-IDF
• Suitable for custom IoT and embedded electronics development

Technical Specifications

• Product Name: ESP32-WROOM-32U WiFi Bluetooth Module
• Manufacturer: Espressif Systems
• Module Model: ESP32-WROOM-32U
• Microcontroller: ESP32-D0WD
• Processor Architecture: 32-Bit Xtensa LX6
• CPU: Dual-Core
• Maximum Clock Speed: 240MHz
• Flash Memory Options: 4MB / 8MB / 16MB
• Internal SRAM: 520KB
• WiFi Standard: IEEE 802.11 b/g/n
• WiFi Frequency: 2.4GHz
• Bluetooth: Bluetooth 4.2 BR/EDR and BLE
• Antenna Type: External Antenna Required
• Antenna Connector: U.FL / IPEX MHF I Compatible
• Recommended Antenna Impedance: 50 Ohms
• Operating Voltage: 3.0V to 3.6V DC
• Nominal Supply Voltage: 3.3V DC
• GPIO: Up to 32 GPIO Signals
• Interfaces: UART, SPI, I2C, I2S, PWM
• Analog Interfaces: ADC and DAC
• Operating Temperature: -40°C to +85°C
• Module Dimensions: 18 x 19.2 x 3.2mm
• Mounting: Surface Mount (SMD)
• Programming: UART with Compatible Programming Circuit

Available Flash Memory Variants

• 4MB Flash: Suitable for standard WiFi, Bluetooth, and IoT applications.
• 8MB Flash: Provides additional storage for larger firmware and application resources.
• 16MB Flash: Suitable for applications requiring additional program or data storage.

Note: Flash capacity depends on the exact product variant. Select the correct memory option according to your project requirements and available stock.

Applications

• Internet of Things (IoT) devices
• Smart home automation systems
• Industrial wireless monitoring
• WiFi sensor networks
• Bluetooth communication devices
• Robotics and automation projects
• Wireless environmental monitoring
• Smart agriculture systems
• Remote data logging equipment
• Custom PCB and embedded system design
• Wireless control systems
• Connected electronic products
• Educational engineering projects
• DIY electronics development

External IPEX/U.FL Antenna Connection

The ESP32-WROOM-32U features a miniature RF connector designed for connecting a compatible external 2.4GHz antenna.

Unlike modules with fixed PCB antennas, this design allows developers to select an appropriate external antenna for different product enclosures and installation conditions.

External antenna selection can be particularly useful when the module is installed inside a device housing or when antenna placement needs to be optimized.

Important: Use a suitable 2.4GHz, 50-ohm antenna with the correct IPEX/U.FL-compatible connector. Wireless performance depends on antenna selection, installation, interference, and the operating environment.

WiFi and Bluetooth Connectivity

The ESP32-WROOM-32U integrates both WiFi and Bluetooth wireless technologies, making it suitable for applications that require network connectivity and communication with compatible wireless devices.

WiFi Features: Supports wireless networking, data transmission, local web servers, and IoT communication.

Bluetooth Features: Supports Bluetooth Classic and Bluetooth Low Energy for compatible wireless communication applications.

Arduino IDE and ESP-IDF Programming

The module can be programmed using compatible ESP32 development environments, including Arduino IDE and Espressif ESP-IDF.

Developers can create custom WiFi devices, Bluetooth controllers, smart monitoring systems, and connected electronic applications.

Because this is a standalone surface-mount module, a suitable carrier PCB, regulated power supply, programming interface, and boot circuitry are required.

Why Choose ESP32-WROOM-32U?

Flexible Antenna Integration: The external RF connector allows developers to choose a suitable antenna rather than relying on an integrated PCB antenna.

Powerful Processing: The dual-core processor provides up to 240MHz processing capability for embedded applications.

Multiple Memory Options: Available Flash variants provide flexibility for different firmware and storage requirements.

Dual Wireless Connectivity: Built-in WiFi and Bluetooth reduce the need for separate wireless communication modules.

Compact Design: Its small SMD footprint makes it suitable for custom PCB designs and space-constrained embedded products.

Important Usage Notes

• Use a properly regulated 3.3V power supply.
• Do not apply 5V directly to the module's power supply or GPIO pins.
• The external antenna is required for normal wireless operation.
• Use the correct antenna connector and RF frequency.
• A USB-to-UART programming interface is required for standard serial programming.
• This is a standalone module, not a complete USB development board.
• Verify the Flash memory capacity of the supplied module.
• Check the official datasheet before finalizing a custom PCB layout.
• Actual RF performance depends on antenna installation and environmental conditions.

Buy ESP32-WROOM-32U Module in Pakistan

Looking for an ESP32-WROOM-32U External Antenna WiFi Bluetooth Module in Pakistan? Shop online at Robostan.pk for ESP32 modules, ESP8266 boards, wireless communication components, Arduino controllers, sensors, and robotics accessories.

Find suitable microcontrollers and electronics components for embedded development, robotics, industrial automation, and IoT applications.

Order your ESP32-WROOM-32U Module online from Robostan.pk with nationwide delivery across Pakistan, including Lahore, Karachi, Islamabad, Rawalpindi, Faisalabad, Multan, Peshawar, and other cities.

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