ESP32-WROOM-32D 4M 32Mbit Flash WiFi Bluetooth Module

Description

The ESP32-WROOM-32D is a highly integrated, production-ready wireless module built around the ESP32-D0WD dual-core microcontroller. It combines Wi-Fi, Bluetooth, and ample processing power in a compact 18mm x 20mm form factor, making it a cornerstone for scalable IoT deployments. The module’s 4MB of flash memory provides sufficient space for application code, file systems, and Over-The-Air (OTA) updates.

Engineered for reliability, the module supports a wide array of network protocols including TCP/IP, SSL, HTTP, and MQTT out of the box. Its rich set of hardware interfaces—from SPI and I2C to capacitive touch and Hall-effect sensors—enables direct connection to sensors, actuators, and displays without external glue logic. The integrated power management unit and multiple sleep modes (including Deep-sleep) are critical for designing long-lasting, battery-operated field devices.