ESP32 Boards/ ESP32/ ESP32-WROOM-32UE

ESP32-WROOM-32UE

ACTIVE WROOM

ESP32-WROOM-32UE integrates ESP32-D0WD-V3, with higher stability and safety performance.

ESP32-WROOM-32UE module
18 × 19.2 mm
16MB
Flash
2MB
PSRAM
38
GPIO pins
18×19.2mm
Size

Specifications

Datasheet ↗

Module

FamilyWROOM
Embedded chipESP32-D0WD-V3, ESP32-D0WDR2-V3
GPIO pins38
AntennaIPEX antenna connector
Dev boardESP32-DevKitC
Operating temp-40°C ~ 85°C
Dimensions18 × 19.2 × 3.2 mm

Memory

Flash4 / 8 / 16 MB
PSRAMUp to 2 MB

Connectivity

Wi-Fi802.11 b/g/n (2.4 GHz)
Bluetooth4.2
BLE4.2

Module variants

8 variants
Base lowest-cost config Top highest spec High-temp extended temperature range
VariantFlashPSRAMTags
ESP32-WROOM-32UE-N44 MB-Base
ESP32-WROOM-32UE-N88 MB-
ESP32-WROOM-32UE-N1616 MB-
ESP32-WROOM-32UE-H44 MB-High-temp
ESP32-WROOM-32UE-H88 MB-High-temp
ESP32-WROOM-32UE-N4R24 MB2 MB
ESP32-WROOM-32UE-N8R28 MB2 MB
ESP32-WROOM-32UE-N16R216 MB2 MBTop

About the ESP32-WROOM-32UE

ESP32-WROOM-32UE is a Wi-Fi + Bluetooth + Bluetooth LE module based on the ESP32-D0WD-V3 chip, featuring an IPEX antenna connector for flexible antenna options.

  • Supports 2.4 GHz Wi-Fi and Bluetooth Classic/LE
  • Multiple flash and PSRAM configurations available
  • Wide operating temperature range: -40°C ~ 85°C
  • Compact size: 18 x 19.2 x 3.2 mm
  • IPEX antenna connector for external antennas
  • Ideal for industrial and consumer IoT applications

The ESP32-WROOM-32UE series takes the proven performance of the ESP32-WROOM-32E lineup and adds a game-changing feature-an external antenna connector (U.FL/IPEX). This gives you the freedom to choose the perfect antenna for your application, boosting wireless range, improving signal strength, and ensuring reliable connectivity even in challenging environments.

Compared to the older ESP32-WROOM-32U and 32D modules, the 32UE offers better RF performance, more flexible memory options, and a design that’s easier to integrate into complex enclosures or metal housings where internal antennas struggle. If your project demands consistent wireless performance across long distances or through interference-heavy environments, the 32UE series delivers.

Choosing the right variant depends on your needs:

  • N4 / N8 / N16: Standard flash options (4MB, 8MB, or 16MB) ideal for most IoT and connected device projects, from industrial sensors to consumer gadgets.
  • H4 / H8: High-temperature models built for rugged, demanding conditions like factory floors, outdoor installations, or engine compartments.
  • N4R2 / N8R2 / N16R2: PSRAM variants offering extra memory for advanced applications such as real-time video streaming, audio processing, or edge AI.

In short-if you need the power of an ESP32 with the flexibility of an external antenna and the option to scale memory for advanced workloads, ESP32-WROOM-32UE is the smart choice. More reliable wireless, more deployment flexibility, and more room to grow-without sacrificing the proven stability of the ESP32 platform.

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