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:
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:
Manufacturer Part #
|GC-ESP-WROOM-32D||4MB||-40ºC to 85ºC (-40ºF to 185ºF)||ESP32-WROOM-32D|
|GC-ESP-WROOM-32D-8M||8MB||-40ºC to 85ºC (-40ºF to 185ºF)||ESP32-WROOM-32D (8 MB)|
|GC-ESP-WROOM-32D-16M||16MB||-40ºC to 85ºC (-40ºF to 185ºF)||ESP32-WROOM-32D (16 MB)|
|GC-ESP-WROOM-32D-HT||4MB||-40ºC to 105ºC (-40ºF to 221ºF)||ESP32-WROOM-32D (M113DH3200PS3Q0)|
|Antenna||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|
|Interfaces||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
|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
|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|
|ESP-WROOM-32D Datasheet||View (PDF)|
|ESP-WROOM-32 Datasheet||View (PDF)|
|ESP32 Datasheet||View (PDF)|
|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)|
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