SKU: IOWC-1871
📋 GST Invoice Available

ESP32-WROOM-32 8M 64Mbit WiFi Bluetooth Module

₹349.00 (Inclusive of all taxes)
Out of Stock

The ESP32-WROOM-32 is a powerful Wi-Fi and Bluetooth 4.2 (BR/EDR/BLE) SoC module based on the ESP32-D0WD dual-core processor, featuring 8MB (64Mbit) of integrated flash memory. It is designed for low-power IoT applications and is programmable via ESP-IDF, Arduino IDE, or MicroPython.

Features

  • Dual-Core Processing Power: Features two Xtensa® 32-bit LX6 microprocessors, clockable from 80 MHz to 240 MHz, for handling demanding tasks like voice encoding and sensor data processing.
  • Integrated Wi-Fi & Bluetooth: Combines 802.11 b/g/n Wi-Fi (up to 150 Mbps) with Bluetooth 4.2 BR/EDR and BLE connectivity in a single, compact module.
  • Rich Peripheral Set: Offers extensive GPIO interfaces including UART, SPI, I2C, I2S, SDIO, PWM, and capacitive touch, plus integrated Hall sensor.
  • Optimized RF Performance: Integrates antenna switch, RF balun, power amplifier, and power management, requiring minimal external components for robust wireless performance.
  • Low Power Operation: Supports advanced power management with dynamic clock scaling and multiple sleep modes, ideal for battery-powered sensor nodes.

Out of stock

Description

The ESP32-WROOM-32 module encapsulates Espressif’s flagship ESP32 SoC, providing a complete, certified wireless solution for IoT development. Its highly integrated design includes PCB trace antenna, flash memory, crystal oscillator, and all necessary passive components, significantly reducing time-to-market and BOM complexity.

Architected for versatility, the module supports a wide range of applications from simple sensor networks to data-intensive edge computing. The dual-core processor allows for real-time task management, where one core can handle wireless protocol stacks while the other executes application logic. Its comprehensive peripheral suite enables direct interfacing with sensors, displays, and actuators without additional glue logic.

Key Features

  • Certified Module: FCC, CE, and other regulatory certifications simplify product compliance for end-device manufacturers.
  • High Integration: Minimal external components required; integrates flash memory, RF matching network, and clock source.
  • Flexible Memory Support: Supports external SPI flash and SRAM via its QSPI interface for memory expansion beyond the onboard 8MB.
  • Secure Connectivity: Hardware-accelerated encryption (AES, SHA, RSA, ECC) supports secure Wi-Fi connections (WPA/WPA2/WPA2-Enterprise).
  • Robust Development Ecosystem: Fully supported by Espressif's ESP-IDF framework, Arduino core, and MicroPython, with extensive community libraries and examples.
  • Thermal & Reliability Design: Operates across a wide temperature range with industrial-grade reliability for harsh environments.

Applications

  • Smart Home Automation: Central hub or node for lighting, security, and climate control systems.
  • Industrial IoT & Telemetry: Wireless sensor node for monitoring equipment health, environmental conditions, and energy usage.
  • Wearable Devices: Fitness trackers and smart watches leveraging BLE for smartphone connectivity.
  • Voice-Enabled IoT: Prototyping voice-controlled assistants and audio streaming devices.
  • Prototyping & Makers Projects: Foundation for custom IoT devices, robots, and interactive art installations.

Technical Specifications

Microcontroller / SoCESP32-D0WD (Dual-core Xtensa® LX6)
Wireless Protocols802.11 b/g/n Wi-Fi, Bluetooth v4.2 BR/EDR & BLE
Frequency Range2.4 GHz ISM Band
RF Transmit PowerUp to 20 dBm (typical)
Supply Voltage2.2V ~ 3.6V
Operating Current~80 mA (average active, RF dependent)
InterfacesUART, SPI, I2C, I2S, SDIO, PWM, GPIO, ADC, DAC, Touch Sensor
Antenna ConnectorIntegrated PCB Trace Antenna
Operating Temperature-40°C to +85°C
Dimensions (L x W)31.5 mm x 18 mm

Frequently Asked Questions

What is the difference between the ESP32-WROOM-32 and ESP32-WROOM-32U module variants?

The primary difference is the antenna configuration. The standard ESP32-WROOM-32 features an integrated PCB trace antenna. The ESP32-WROOM-32U variant replaces this with a U.FL (IPEX) connector, allowing you to attach an external antenna via a pigtail cable for improved range or specific placement. The electrical specifications and firmware are otherwise identical between the two models.

How do I program the ESP32-WROOM-32 module, and what development frameworks are supported?

You can program the module using Espressif's official ESP-IDF (IoT Development Framework) for full control and advanced features. For rapid prototyping, the Arduino Core for ESP32 is widely used within the Arduino IDE. MicroPython is also supported for Python-based development. Flashing is typically done via a USB-to-Serial adapter connected to the module's TX, RX, EN, and GPIO0 pins, requiring the boot button to be held during power-up to enter download mode.

What is the typical power consumption and how can I implement deep sleep for battery operation?

Active current consumption varies with CPU speed and RF activity, averaging around 80 mA with Wi-Fi active. For battery-powered applications, you can leverage ESP32's ultra-low-power coprocessor (ULP) and multiple sleep modes. In Deep Sleep mode, the module can consume as little as 10 µA, with the RTC and ULP coprocessor remaining active. The module can be configured to wake periodically from timers, external GPIO interrupts, or touch sensor events to transmit sensor data before returning to sleep.

Package Includes

  • 1 x ESP32-WROOM-32 Module (8MB Flash)

Additional Information

Weight 0.01 kg
Dimensions 3.15 × 1.8 cm