ESP32-WROOM-32U WiFi Module

ESP32-WROOM-32U WiFi Bluetooth Module Introduction

ESP32-WROOM-32U WiFi Bluetooth Module and ESP32-WROOM-32E are two powerful, generic Wi-Fi + Bluetooth + Bluetooth LE 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-32E comes with a PCB antenna, and ESP32-WROOM-32UE with a connector for an external antenna. The information in this datasheet is applicable to both modules. The ordering information of the two modules is listed as follows:

Features

• CPU and On­ Chip Memory
  • ESP32-D0WD-V3 embedded, Extensa dual-core 32-bit LX6 microprocessor, up to 240 MHz
  • 448 KB ROM
  • 520 KB SRAM
  • 16 KB SRAM in RTC
• Wi­Fi
  • 802.11b/g/n
  • Bit rate: 802.11n up to 150 Mbps
  • A-MPDU and A-MSDU aggregation
  • 0.4 µs guard interval support
  • Center frequency range of operating channel:
    2412 ~ 2484 MHz
• Bluetooth
  • Bluetooth V4.2 BR/EDR and Bluetooth LE specification
  • Class-1, class-2 and class-3 transmitter
  • AFH
  • CVSD and SBC
• Peripherals
  • SD card, UART, SPI, SDIO, I2C, LED PWM, Motor PWM, I2S, IR, pulse counter, GPIO, capacitive touch sensor, ADC, DAC, TWAI® (compatible with ISO 11898-1, i.e. CAN Specification 2.0)
• Integrated Components on Module
  • 40 MHz crystal oscillator
  • 4/8/16 MB SPI flash
• Antenna Options
  • ESP32-WROOM-32E: On-board PCB antenna
  • ESP32-WROOM-32UE: external antenna via a connector
• Operating Conditions
  • Operating voltage/Power supply: 3.0 ~ 3.6 V
  • Operating ambient temperature:
    – 85 °C version: –40 ~ 85 °C
    – 105 °C version: –40 ~ 105 °C.