1.1 Features

CPU and On-Chip Memory

• ESP32-U4WDH embedded, Xtensa dual-core

32-bit LX6 microprocessor, up to 240 MHz

• 448 KB ROM

• 520 KB SRAM

• 16 KB SRAM in RTC

• 4 MB SPI flash

Wi-Fi

• 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

• Up to 28 GPIOs

– 5 strapping GPIOs

– 6 GPIOs used for in-package flash

– 6 input-only GPIOs

• SD card, UART, SPI, SDIO, I2C, LED PWM, motor

PWM, I2S, infrared remote controller, pulse

counter, GPIO, touch sensor, ADC, DAC,

Ethernet, TWAI® (compatible with ISO 11898-1,

i.e. CAN Specification 2.0)

Integrated Components on Module

• 40 MHz crystal oscillator

Antenna Options

• ESP32-MINI-1: On-board PCB antenna

• ESP32-MINI-1U: external antenna via a

connector

Operating Conditions

• Operating voltage/Power supply: 3.0 ~ 3.6 V

• Operating ambient temperature:

– 85 °C version module: –40 ~ 85 °C

– 105 °C version module: –40 ~ 105 °C

Certification

• RF certification: See Certificates

• Green certification: REACH/RoHS

Test

• Reliability: HTOL/HTSL/uHAST/TCT/ESD