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. For detailed information on the UFL connector please see Chapter 10 in the datasheet attached.

Features:

1. ESP32-WROOM-32 contains two low-power Xtensa 32-bit LX6 microprocessors
2. 448 KBytes ROM for booting and core functions
3. 520 KBytes on-chip SRAM
4. 8 KBytes SRAM in RTC SLOW
5. 8 KBytes SRAM in RTC FAST
6. 1 Kbit of EFUSE, 256 bits MAC
7. IPv4, IPv6, SSL, TCP/UDP/HTTP/FTP/MQTT
8. Interfaces: SD-card, UART, SPI, SDIO, I2C, LED PWM, Motor  PWM, I2S, IR, GPIO, capacitive touch sensor, ADC, DAC, Hall sensor, temperature sensor