The ESP-WROOM-32 is a high-performance Wi-Fi and Bluetooth module built on the ESP32-D0WDQ6 chip. It’s designed for efficient wireless connectivity with dual-core processing, low power consumption, and extensive peripheral support—ideal for applications in IoT, smart homes, industrial automation, and wearables.

Specifications

• MCU Core: Dual-core Xtensa® LX6 processor running at up to 240 MHz
• RAM: 520 KB SRAM
• Flash Memory: 4 MB SPI flash
• Wireless: Wi-Fi 802.11 b/g/n and Bluetooth v4.2 (BR/EDR + BLE)
• Operating Voltage: 3.0V to 3.6V
• Interfaces: UART, SPI, I2C, I2S, PWM, ADC, DAC, SDIO
• GPIO Pins: Up to 34 usable General-Purpose Input/Output pins
• Operating Temperature: –40°C to +85°C
• Module Dimensions: 18 mm × 25.5 mm × 3.1 mm

Features

• Integrated Wi-Fi, Bluetooth Classic, and BLE for robust connectivity
• Dual-core architecture with dynamic clock scaling for power efficiency
• Enhanced security options including secure boot and flash encryption
• Firmware upgrade support via Over-the-Air (OTA) mechanism
• Touch sensing, Hall effect sensor, and SD card interface support
• Multiple power-saving modes for ultra-low power applications
• Compatible with Arduino IDE, PlatformIO, and official ESP-IDF
• Certified for global use: FCC, CE, RoHS compliant