Espressif 
CPU and OnChip Memory
• ESP32-U4WDH embedded, Xtensa dual-core 32bit LX6 microprocessor, up to 240MHz
• 448KB ROM
• 520KB SRAM
• 16KB SRAM in RTC
• 4MB SPI flash
WiFi
• 802.11b/g/n
• Bit rate: 802.11n up to 150Mbps
• A-MPDU and A-MSDU aggregation
• 0.4µs guard interval support
• Center frequency range of operating channel:
2412 ~ 2484MHz
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, 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
• 40MHz crystal oscillator
Antenna Options
• ESP32-MINI-1: On-board PCB antenna
Operating Conditions
• Operating voltage/Power supply: 3.0 ~ 3.6V
• Operating ambient temperature: –40 ~ 85°C
