Home / ESP32-WROOM-32U - Wi-Fi/BT/BLE Module with U.FL (IPEX) Connector

ESP32-WROOM-32U - Wi-Fi/BT/BLE Module with U.FL (IPEX) Connector: 4MB Flash

$1.73

Regular price: $3.88

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SKU: GC-ESP-WROOM-32U

MPN: GC-ESP32-WROOM-32U-N4

Manufacturer: Espressif Systems

Stock Status: In stock

Delivery: Ships same or next business day
Shipping is Free on orders over $75

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Product Information

Product Description

Minimum Order Quantity (MOQ) for all options is 3250 units.

Occasionally, we have small in-stock quantities.  Call for information.

High Temperature option is NOT for new designs.

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The Espressif ESP-WROOM-32U is a powerful and compact module that combines Wi-Fi, Bluetooth (BT), and Bluetooth Low Energy (BLE) to support a wide range of applications. The module boasts a U.FL (IPEX) connector making the module perfect for space-constrained applications.

By integrating the ESP32-D0WD chip, the device offers a dual-core CPU with an adjustable clock frequency (80 MHz to 240 MHz) and can be individually controlled and powered. The CPU may also be powered off to make use of the low power co-processor to continuously monitor the peripherals for a change of state.

Some of the powerful peripherals integrated within the ESP32-D0WD include:

  • Capacitive touch sensors
  • Hall sensors
  • SD card interface
  • Ethernet
  • High speed SPI
  • UART
  • I²S
  • I²C
  • Low-noise sense amplifiers

 

The WROOM-32U operates on freeRTOS with LwIP; TLS 1.2 with hardware acceleration built-in. The module includes secure encrypted over-the-air (OTA) updates, allowing developers to continually upgrade their products after release with low cost and effort.

The system is completely open-source with a large collection of example code and information on GitHub.

Common applications include:

  • Home automation
  • Wearable electronics
  • Sensor networks
  • Internet of Things (IoT) solutions
  • Voice encoding
  • Music streaming
  • MP3 decoding

  

Compare ESP-WROOM-32 Series

 

Order Summary

 

SKU

Flash Memory

Manufacturer Part # (MPN)
GC-ESP-WROOM-32U (SALE)
 4MB ESP32-WROOM-32U
GC-ESP-WROOM-32U-8M (SALE)
 8MB ESP32-WROOM-32U-8M
GC-ESP-WROOM-32U-16M (SALE)
 16MB ESP32-WROOM-32U-N16

GC-ESP-WROOM-32U-HT

 4MB ESP32-WROOM-32U-N4

Features

Features of the ESP-WROOM-32U

  • Combo Wi-Fi, Bluetooth (BT), and Bluetooth Low Energy (BLE) module
  • Integrates with the ESP32-D0WD chip
  • Two independently controlled CPU cores with adjustable clock frequency from 80MHz to 240MHz
  • Sleep current is less than 5 μA, making it suitable for battery-powered and wearable-electronics applications
  • 4-layer FCC, CE ( RED ), IC, TELEC, SRRC, and KCC-compliant design
  • Classic Bluetooth for legacy connections, supporting:
    - L2CAP
    - SDP
    - GAP
    - SMP
    - AVDTP
    - AVCTP
    - A2DP (SNK)
    - AVRCP
  • Including BLE GATT-based profiles, such as BlueFi, SPP-like, etc.
  • Bluetooth Low Energy (BLE) connects to smart phones, broadcasting low-energy beacons for easy detection
  • Wi-Fi modes: Soft-AP/Station/SoftAP+Station/P2P

Documents and Drivers

Documentation

ESP-WROOM-32U Datasheet View (PDF)
ESP-WROOM-32 Datasheet View (PDF)
ESP32 Datasheet View (PDF)

Downloads
ESP-WROOM-32 Reference Design V1.1 - (recommended for developers who design modules themselves) Download (ZIP)
ESP-WROOM-32 Reference Design V1.0 - (recommended for mass-produced modules) Download (ZIP)
ESP-WROOM-32 AT Bin Download (ZIP)

Specifications

ANTENNAS

U.FL (physically equivalent to IPEX)

CERTIFICATIONS

FCC1 / CE1 / CE2 / IC / KCC / NCC / SRRC / TELEC

DIMENSIONS

18mm x 19.2mm x 3.2mm

FIRMWARE

Upgrade: UART Download / OTA (via network)
Download and write firmware via host

FREQUENCY BAND

2.4GHz-2.5GHz (2400M-2483.5M)

INTEGRATED CIRCUIT (IC)

ESP32-DOWD

INTERFACE(S)

Wi-Fi mode: station/SoftAP/SoftAP+station/P2P
SD Card, UART, SPI, SDIO, I2C, LED PWM, Motor PWM, I2S, IR
GPIO, Capacitive touch sensor, ADC, DAC, LNA pre-amplier

MEMORY

4 MB, 8 MB, or 16 MB Flash
448kB ROM
536kB SRAM

MPN

ESP32-WROOM-32U

PINS

38 Pins

POWER

Average: 80 mA

PROTOCOLS

Wi-Fi: 802.11 b/g/n/d/e/i/k/r (802.11n up to 150 Mbps)
Wi-Fi: A-MPDU and A-MSDU aggregation and 0.4 guard interval support
Bluetooth: Bluetooth v4.2 BR/EDR and BLE specification
Network: IPv4, IPv6, SSL, TCP/UDP/HTTP/FTP/MQTT

RADIO

Power Output 20.5 dBm
Sensitivity -98dBm

RELATED PRODUCTS HEADING

Related chips and modules

SECURITY/PROTECTION

Security: WPA/WPA2/WPA2-Enterprise/WPS
Encryption: AES/RSA/ECC/SHA

SENSOR(S)

  • Hall sensor
  • Temperature sensor

SOFTWARE

Supports Cloud server development
SDK for custom firmware development

TEMPERATURE RANGE

Operating: -40ºC to 85ºC (-40ºF to 185ºF)
High Temp option: -40ºC to 105ºC (-40ºF to 221ºF)

TIMERS

On board clock: 26 MHz crystal, 32 kHz crystal

VOLTAGE

Operating: 2.7V ~3.6V

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