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ESP32-WROOM-32D/U low-power Wi-Fi+BT+BLE SOC IOT Solution module

DWM19062801
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ESP32-WROOM-32D and ESP32-WROOM-32U are powerful, generic Wi-Fi+BT+BLE MCU modules that target a wide variety of applications, ranging from low-power sensor networks to the most demanding tasks, such as voice encoding, music streaming and MP3 decoding. 

Antenna

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The minimum purchase order quantity for the product is 2.

Description

ESP32-WROOM-32D and ESP32-WROOM-32U are powerful, generic Wi-Fi+BT+BLE MCU modules that target a wide variety of applications, ranging from low-power sensor networks to the most demanding tasks, such as voice encoding, music streaming and MP3 decoding.

ESP32-WROOM-32U is different from ESP32-WROOM-32D in that ESP32-WROOM-32U integrates a U.FL connector. At the core of the two modules is the ESP32-D0WD chip that belongs to the ESP32 series* of chips. The chip embedded is designed to be scalable and adaptive. There are two CPU cores that can be individually controlled, and the CPU clock frequency is adjustable from 80 MHz to 240 MHz. The user may also power off the CPU and make use of the low-power co-processor to constantly monitor the peripherals for changes or crossing of thresholds. ESP32 integrates a rich set of peripherals, ranging from capacitive touch sensors, Hall sensors, SD card interface, Ethernet, high-speed SPI, UART, I²S and I²C. 

The integration of Bluetooth, Bluetooth LE and Wi-Fi ensures that a wide range of applications can be targeted, and that the module is all-around: using Wi-Fi allows a large physical range and direct connection to the Internet through a Wi-Fi router, while using Bluetooth allows the user to conveniently connect to the phone or broadcast low energy beacons for its detection. The sleep current of the ESP32 chip is less than 5 µA, making it suitable for battery powered and wearable electronics applications. The module supports a data rate of up to 150 Mbps, and 20 dBm output power at the antenna to ensure the widest physical range. As such the module does offer industry-leading specifications and the best performance for electronic integration, range, power consumption, and connectivity. The operating system chosen for ESP32 is freeRTOS with LwIP; TLS 1.2 with hardware acceleration is built in as well. Secure (encrypted) over the air (OTA) upgrade is also supported, so that users can upgrade their products even after their release, at minimum cost and effort.

Feature

Module  ESP32-WROOM-32D  ESP32-WROOM-32U 
Core ESP32-D0WD(Xtensa® 32-bit LX6 MCU) ESP32-D0WD(Xtensa® 32-bit LX6 MCU)
SPI flash  32 Mbits, 3.3 V 32 Mbits, 3.3 V
Crystal  40 MHz 40 MHz
Antenna  PCB antenna IPEX Antenna
Dimensions (Unit: mm) (18.00±0.10) × (25.50±0.10) × (3.10±0.10)  (18.00±0.10) × (19.20±0.10) × (3.20±0.10) 

Specifications 

Categories  Items Specifications
Certification

RF Certification

Wi-Fi Certification 

Bluetooth certification 

Green Certification

FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC 

Wi-Fi Alliance

BQB

REACH/RoHS

Test Reliablity HTOL/HTSL/uHAST/TCT/ESD
Wi-Fi

Protocols 

Frequency range 

802.11 b/g/n (802.11n up to 150 Mbps) A-MPDU and A-MSDU aggregation and 0.4 µs guard interval support

2.4 GHz ~ 2.5 GHz

Bluetooth 

Protocols 

Radio

Audio

Bluetooth v4.2 BR/EDR and BLE specification 

NZIF receiver with –97 dBm sensitivity Class-1, class-2 and class-3 transmitter,AFH

CVSD and SBC 

Hardware

Module interfaces

On-chip sensor

Integrated crystal 

Integrated SPI flash 

Operating voltage/Power supply

Operating current

Minimum current delivered by power supply

Recommended operating temperature range

SD card, UART, SPI, SDIO, I2C, LED PWM, Motor,PWM, I2S, IR, pulse counter, GPIO, capacitive touch,sensor, ADC, DAC

Hall sensor

40 MHz crystal 

4 MB(8 MB flash or 16 MB flash are available for custom order)

2.7 V ~ 3.6 V

Average: 80 mA

500 mA

–40 °C ~ +85 °C 

Pin Definition

dwmzone-esp32-wroom-32du-low-power-wi-fibtble-soc-iot-solution-module-Pin Definitions

Name No. Type  Function
GND

15

38

P Ground 

3V3

2 I Power supply

EN

3 I Module-enable signal. Active high. 

SENSOR_VP

SENSOR_VN

4

5

I

I

GPIO36, ADC1_CH0, RTC_GPIO0

GPIO39, ADC1_CH3, RTC_GPIO3 

IO34 

IO35

IO32

IO33

IO25

IO26

IO27 

IO14

IO12 

IO13

IO15 

IO2

IO0

IO4 

IO16 

IO17

IO5 

IO18 

IO19

IO21 

IO22

IO23

6

7

8

9

10

11

12

13

14

16

23

24

25

26

27

28

29

30

31

33

36

37

I/O

GPIO34, ADC1_CH6, RTC_GPIO4

GPIO35, ADC1_CH7, RTC_GPIO5

GPIO32, XTAL_32K_P (32.768 kHz crystal oscillator input), ADC1_CH4, TOUCH9, RTC_GPIO9 

GPIO33, XTAL_32K_N (32.768 kHz crystal oscillator output), ADC1_CH5, TOUCH8, RTC_GPIO8 

GPIO25, DAC_1, ADC2_CH8, RTC_GPIO6, EMAC_RXD0 

GPIO26, DAC_2, ADC2_CH9, RTC_GPIO7, EMAC_RXD1 

GPIO27, ADC2_CH7, TOUCH7, RTC_GPIO17, EMAC_RX_DV

GPIO14, ADC2_CH6, TOUCH6, RTC_GPIO16, MTMS, HSPICLK, HS2_CLK, SD_CLK, EMAC_TXD2

GPIO12, ADC2_CH5, TOUCH5, RTC_GPIO15, MTDI, HSPIQ, HS2_DATA2, SD_DATA2, EMAC_TXD3

GPIO13, ADC2_CH4, TOUCH4, RTC_GPIO14, MTCK, HSPID, HS2_DATA3, SD_DATA3, EMAC_RX_ER 

GPIO15, ADC2_CH3, TOUCH3, MTDO, HSPICS0, RTC_GPIO13, HS2_CMD, SD_CMD, EMAC_RXD3

GPIO2, ADC2_CH2, TOUCH2, RTC_GPIO12, HSPIWP, HS2_DATA0, SD_DATA0

GPIO0, ADC2_CH1, TOUCH1, RTC_GPIO11, CLK_OUT1, EMAC_TX_CLK

GPIO4, ADC2_CH0, TOUCH0, RTC_GPIO10, HSPIHD, HS2_DATA1, SD_DATA1, EMAC_TX_ER 

GPIO16, HS1_DATA4, U2RXD, EMAC_CLK_OUT

GPIO17, HS1_DATA5, U2TXD, EMAC_CLK_OUT_180

GPIO5, VSPICS0, HS1_DATA6, EMAC_RX_CLK

GPIO18, VSPICLK, HS1_DATA7

GPIO19, VSPIQ, U0CTS, EMAC_TXD0 

GPIO21, VSPIHD, EMAC_TX_EN

GPIO22, VSPIWP, U0RTS, EMAC_TXD1

GPIO23, VSPID, HS1_STROBE

RXD0

TXD0 

34

35

I/O

GPIO3, U0RXD, CLK_OUT2

GPIO1, U0TXD, CLK_OUT3, EMAC_RXD2

SHD/SD2

SWP/SD3

17

18

I/O

GPIO9, SD_DATA2, SPIHD, HS1_DATA2, U1RXD

GPIO10, SD_DATA3, SPIWP, HS1_DATA3, U1TXD

SCS/CMD

SCK/CLK

SDO/SD0

SDI/SD1

19

20

21

22

I/O

GPIO11, SD_CMD, SPICS0, HS1_CMD, U1RTS

GPIO6, SD_CLK, SPICLK, HS1_CLK, U1CTS

GPIO7, SD_DATA0, SPIQ, HS1_DATA0, U2RTS

GPIO8, SD_DATA1, SPID, HS1_DATA1, U2CTS

NC

32 - -

Useful Link:

SDKs & Demos

ESP32-WROOM-32 Datasheet

ESP32-MeshKit-Sense Hardware Design Guidelines

ESP32-WROOM-32 Reference Design V1.1 (recommended for developers who design modules themselves) r1.0

Espressif Products 
Ordering Information

Flash Download Tools (ESP8266 & ESP32)

ESP32&ESP8266 RF Performance Test Demonstration

ESP-Tuning Tool for TouchSensor

Product Details
DWM19062801
500 Items
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