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1.1 Features

CPU and On-Chip Memory

? ESP32 embedded, Xtensa dual-core 32-bit LX6

microprocessor, up to 240 MHz

? 448 KB ROM

? 520 KB SRAM

? 16 KB SRAM in RTC

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

? Adaptive Frequency Hopping (AFH)

? CVSD and SBC for audio codec

Peripherals

? 2 × UART (one for connection to the host and

the other for debugging), EN pin, and interrupt

pin

Integrated Components on Module

? 40 MHz crystal oscillator

? 4 MB SPI flash

Antenna Options

? On board PCB antenna with an RF test

connector

Note:

This connector is for test only, and must not be

used for connecting an external antenna.

Operating Conditions

? Operating voltage/Power supply: 3.0 ~ 3.6 V

? Operating temperature range: –40 ~ 85 °C

Certification

? Bluetooth certification: BQB (ID: D050108)

? RF certification: See Certification

? Green certification: REACH/RoHS