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The ESP32-WROOM-32 (8MB / 64Mbit Flash) is a powerful, generic Wi-Fi + Bluetooth + Bluetooth LE MCU module designed for a wide array of Internet of Things (IoT) applications. Built around the robust ESP32-D0WD System-on-Chip (SoC), it houses two low-power Xtensa® 32-bit LX6 microprocessors capable of running at adjustable clock frequencies from 80 MHz up to 240 MHz.

Upgraded with 8MB (64Mbit) SPI Flash memory, this variant provides double the code and data storage capacity of standard 4MB modules. This additional memory allows room for large firmware files, Over-The-Air (OTA) web updates, complex dual-partition app layouts, and localized web servers. Featuring an integrated onboard PCB antenna, RF balun, power amplifier, and advanced low-power sleep modes, the ESP32-WROOM-32 is ideal for smart home automation, industrial telemetry, and wearable tech.

Key Features and Benefits

• Expanded Storage (8MB / 64Mbit Flash): Comfortably holds heavy application code, graphics assets, and double-bank OTA updates.

• Dual-Core Processing Power: Independent Xtensa LX6 CPU cores operating up to 240 MHz deliver fast instruction execution.

• Dual Wireless Connectivity: Supports 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth v4.2 BR/EDR + BLE.

• Ultra-Low Power Consumption: Features fine-grained clock gating and deep sleep modes drawing under 5 µA for battery operation.

• Rich Peripheral Ecosystem: Includes ADC, DAC, capacitive touch sensors, SPI, I2C, UART, PWM, SD card interfaces, and CAN bus compatibility.

• Secure Firmware Execution: Built-in hardware acceleration for AES, RSA, ECC, and SHA encryption alongside Flash Encryption & Secure Boot.

Technical Specifications

How to Use

1. Power Circuitry: Supply a regulated 3.3V DC power source to the 3V3 pin (ensure your power supply can provide at least 500mA peak during Wi-Fi transmission).

2. Boot Circuit Setup: Connect a 10kΩ pull-up resistor on the EN pin to 3V3. Pull GPIO0 to Ground during startup to enter serial flashing/bootloader mode.

3. Software Configuration: Select ESP32 Dev Module in Arduino IDE or ESP-IDF. Under Flash Size, select 8MB (64Mb) to utilize the full memory layout.

4. Firmware Programming: Connect an external USB-to-UART converter (CP2102 / FT232RL) to TXD0 and RXD0 pins for uploading code and serial debugging.

Applications

• Smart Home Automation & IoT Gateways

• Wireless Audio Streaming & Voice Recognition

• Industrial Data Loggers & Wireless Sensor Networks

• Environmental Air Quality & Weather Monitoring Nodes

• Smart Agriculture & Remote Telemetry Systems

Package Includes

• 1 x ESP32-WROOM-32 8MB (64Mbit) Wi-Fi & Bluetooth Surface-Mount Module

Shipping & Delivery

• Free shipping on orders above ₹999 across India

• Dispatched within 1-3 business days

• Expected delivery: 3-7 business days depending on location

• Secure packaging to ensure safe transit of electronic components