The ESP32-WROOM-32U is a powerful, generic Wi-Fi+BT+BLE MCU module that targets a wide variety of applications. What makes the “32U” unique is the absence of a PCB trace antenna. Instead, it features a tiny U.FL (IPEX) connector designed for an external 2.4GHz antenna. This is a game-changer for engineers building products inside metal cases, as it allows the antenna to be mounted on the outside. We offer this module in three memory capacities (4MB, 8MB, and 16MB) to suit everything from simple sensors to memory-intensive web servers and AI scripts.
Key Features
External Antenna Support: U.FL connector for maximum range and signal stability in shielded environments.
Massive Memory Options: Choose between 4MB (Standard), 8MB (Extended), or 16MB (Ultimate) Flash for huge codebases.
Dual-Core 240MHz: Powered by the reliable ESP32-D0WD-V3 chip.
Classic + BLE: Support for both high-speed Bluetooth and low-power Bluetooth LE.
Industrial Grade: Reliable performance from -40°C to +85°C.
Technical Specifications
Feature
4MB Variant
8MB Variant
16MB Variant
Flash Memory
4 MB (32 Mbit)
8 MB (64 Mbit)
16 MB (128 Mbit)
CPU
Dual-core 32-bit
Dual-core 32-bit
Dual-core 32-bit
Antenna
External (U.FL)
External (U.FL)
External (U.FL)
SRAM
520 KB
520 KB
520 KB
Wi-Fi
802.11 b/g/n
802.11 b/g/n
802.11 b/g/n
Voltage
3.0V ~ 3.6V
3.0V ~ 3.6V
3.0V ~ 3.6V
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