Home / ESP32-WROOM-32D - Wi-Fi/BT/BLE Module with PCB Antenna

ESP32-WROOM-32D - Wi-Fi/BT/BLE Module with PCB Antenna: 4MB Flash (High Temp)

$1.48

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SKU: GC-ESP-WROOM-32D-HT

MPN: ESP32-WROOM-32D-HT

Manufacturer: Espressif Systems

Stock Status: In stock

Delivery: Ships same or next business day
Free shipping to the US on orders over $100
Closeout: Limited quantity available.
High Temperature option NOT recommended for new designs

Flash Memory

Call to order: (630) 245-1445

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Product Information

Product Description

High Temperature option is NOT for new designs. Order quantity is limited to in-stock amounts. 



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The Espressif ESP-WROOM-32D is an industry-leading Wi-Fi, Bluetooth (BT), and Bluetooth Low Energy (BLE) module designed around the ESP32-D0WD chip. This module offers a PCB antenna which increases the RF performance for a wider range of applications.

With the integration of the ESP32-D0WD chip, the device provides two (2) individually controlled and powered CPU cores. The CPU has an adjustable clock frequency (80 MHz to 240 MHz) and can be powered off while a separate low power co-processor continuously monitors the peripherals for changes in status.

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

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

 

The WROOM-32D utilizes a freeRTOS operating system with LwIP; TLS 1.2 and built-in hardware acceleration. It is fully-customizable with an open-source platform and secure encrypted over-the-air (OTA) updates, allowing firmware to be updated in deployed products with minimal expense.

GitHub provides a large collection of example code and information for device customizations.

Common applications include:

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

  

Compare ESP-WROOM-32 Series

 

Order Summary

 

SKU

Flash Memory

Manufacturer Part #
GC-ESP32-WROOM-32D-N4 4MB ESP32-WROOM-32D-N4
GC-ESP-WROOM-32D-8M (SALE) 8MB ESP32-WROOM-32D-N8
GC-ESP-WROOM-32D-16M (SALE) 16MB ESP32-WROOM-32D (16 MB)

GC-ESP-WROOM-32D-HT (SALE)

 4MB ESP32-WROOM-32D-HT

 

Features

  • 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:
  1. - L2CAP
  2. - SDP
  3. - GAP
  4. - SMP
  5. - AVDTP
  6. - AVCTP
  7. - A2DP (SNK)
  8. - 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
  • Fully certified with integrated PCB antenna and software stacks

Documents and Drivers

Documentation

ESP-WROOM-32D Datasheet

ESP-WROOM-32 Datasheet

ESP32 Datasheet

Downloads

ESP-WROOM-32 Reference Design V1.1
(recommended for developers who design modules themselves)

ESP-WROOM-32 Reference Design V1.0
(recommended for mass-produced modules)

ESP-WROOM-32 AT Bin

Specifications

Antennas

Internal On-Board PCB antenna

Certifications

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

Dimensions

18mm x 25.5mm x 3.1mm

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-32D-N4

Pins

38

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

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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