Espressif ESP32-WROOM-32E-N16 Wi-Fi + Bluetooth MCU Module
Espressif ESP32-WROOM-32E-N16 Wi-Fi + Bluetooth MCU Module - Image 2
SKU: IOWC-0702
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Espressif ESP32-WROOM-32E-N16 Wi-Fi + Bluetooth MCU Module

₹399.00 (Inclusive of all taxes)
Out of Stock

The Espressif ESP32-WROOM-32E-N16 is a surface-mount Wi-Fi + Bluetooth + BLE MCU module with an on-board PCB antenna and external antenna connector, designed for a wide range of IoT applications from low-power sensor networks to demanding multimedia tasks.

Features

  • Dual-core ESP32 MCU with integrated 2.4 GHz Wi-Fi (802.11 b/g/n) and dual-mode Bluetooth (Classic & BLE) for versatile connectivity.
  • On-board PCB antenna with an external U.FL connector for flexible antenna deployment and improved range.
  • Wide operating voltage range of 3.0V to 3.6V, suitable for various power supply configurations.
  • Robust -40°C to 85°C operating temperature range for industrial and outdoor environments.
  • High integration with 4MB SPI flash (N16), 520KB SRAM, and rich peripheral set (GPIO, ADC, DAC, SPI, I2C, I2S).

Out of stock

Description

The ESP32-WROOM-32E-N16 module is Espressif’s flagship wireless MCU platform, built around the powerful dual-core Xtensa LX6 processor. It integrates 2.4 GHz Wi-Fi supporting 802.11 b/g/n protocols and dual-mode Bluetooth (Classic and Low Energy 4.2), enabling seamless communication in diverse IoT networks. The module features an on-board PCB antenna for compact designs and includes a U.FL connector for attaching an external antenna to extend wireless range or meet specific radiation pattern requirements.

Engineered for reliability, the module operates from a 3.0V to 3.6V supply and includes advanced power management with multiple sleep modes, making it suitable for battery-powered applications. Its rich set of peripherals and 4MB of integrated SPI flash supports complex firmware developed with ESP-IDF, Arduino Core, or MicroPython. The surface-mount form factor and industrial temperature rating make it a core component for scalable product designs in smart home, industrial automation, and consumer electronics.

Key Features

  • High-performance dual-core ESP32 microcontroller with clock speeds up to 240 MHz.
  • Integrated 2.4 GHz Wi-Fi (802.11 b/g/n) and dual-mode Bluetooth (Classic & BLE 4.2).
  • Flexible antenna options with integrated PCB antenna and U.FL connector for external antenna.
  • Comprehensive power management features with Deep-sleep, Light-sleep, and RTC memory retention.
  • Rich I/O interface including GPIO, ADC, DAC, touch sensors, SPI, I2C, I2S, UART, and PWM.
  • On-board 4MB SPI flash memory for application code and data storage.
  • Robust RF performance with -98 dBm receive sensitivity and up to +20 dBm transmit power.
  • Designed for surface-mount assembly, facilitating high-volume manufacturing.

Applications

  • Smart home automation hubs, sensors, and controllers.
  • Industrial IoT (IIoT) for wireless data acquisition and machine monitoring.
  • Wearable devices and consumer electronics with Bluetooth connectivity.
  • Voice-controlled assistants and audio streaming applications.
  • Prototyping and product development with Arduino IDE, ESP-IDF, or MicroPython.

Technical Specifications

Microcontroller / SoCEspressif ESP32 (Dual-core Xtensa LX6)
Wireless ProtocolsWi-Fi 802.11 b/g/n, Bluetooth Classic, Bluetooth Low Energy (BLE 4.2)
Frequency Range2.4 GHz to 2.5 GHz
RF Transmit PowerUp to +20 dBm
RF Sensitivity-98 dBm
Supply Voltage3.0 V to 3.6 V
Operating CurrentApprox. 80 mA (average active, Wi-Fi Tx)
Flash Memory4 MB (SPI)
SRAM520 KB
Antenna ConnectorOn-board PCB antenna, U.FL connector for external
Operating Temperature-40°C to +85°C
Mounting TypeSurface Mount
Dimensions18.0 mm x 25.5 mm (module footprint)

Frequently Asked Questions

What is the difference between the ESP32-WROOM-32E and the older ESP32-WROOM-32D?

The ESP32-WROOM-32E is an updated version featuring improved RF performance and stability. It maintains the same core ESP32 dual-core processor, 4MB flash, and integrated PCB antenna but incorporates Espressif's latest internal revisions for better Wi-Fi and Bluetooth coexistence and lower power consumption in active modes. The pinout and form factor remain identical, ensuring backward compatibility with existing PCB designs and firmware.

How do I connect an external antenna to the ESP32-WROOM-32E module?

The module includes a U.FL (IPEX) connector for an external antenna. To use it, you must first disable the on-board PCB antenna by desoldering or cutting the zero-ohm resistor (R1) that connects it. Then, attach a compatible 2.4GHz antenna with a U.FL plug. Ensure your firmware is configured for the external antenna path. This process is detailed in the official Espressif hardware design guidelines to maintain proper 50-ohm impedance matching.

What development frameworks are supported for programming this module?

The ESP32-WROOM-32E-N16 is fully supported by the official Espressif IoT Development Framework (ESP-IDF) for advanced control and FreeRTOS-based applications. It is also compatible with the Arduino Core for ESP32 via the Arduino IDE or PlatformIO, allowing for rapid prototyping. Additionally, MicroPython and Lua (NodeMCU) firmware can be flashed for script-based development. You will need a USB-to-serial adapter (e.g., FTDI) connected to the module's TX/RX pins for programming.

What is the typical power consumption in Deep-sleep mode?

The ESP32-WROOM-32E can achieve very low power consumption in Deep-sleep mode, typically around 10 µA to 150 µA depending on the configuration of retained RTC memory and GPIO wake-up sources. This ultra-low current makes the module ideal for battery-powered sensor nodes that wake periodically to transmit data. Power consumption can be further minimized by disabling the internal flash power supply and using the ULP co-processor for simple sensor readings while the main cores are asleep.

Package Includes

  • 1 x Espressif ESP32-WROOM-32E-N16 Module

Additional Information

Weight 0.01 kg
Dimensions 1.8 × 2.5 cm

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