ESP32 datasheet(26/60 Pages) ESPRESSIF

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3. Functional Description

• 802.11n 0.4 µs guard-interval

• up to 150 Mbps of data rate

• Receiving STBC 2×1

• Up to 20.5 dBm of transmitting power

• Adjustable transmitting power

• Antenna diversity

ESP32 supports antenna diversity with an external RF switch. One or more GPIOs control the RF switch and

selects the best antenna to minimize the effects of channel fading.

3.5.2 Wi-Fi MAC

The ESP32 Wi-Fi MAC applies low-level protocol functions automatically. They are as follows:

• 4 × virtual Wi-Fi interfaces

• Simultaneous Infrastructure BSS Station mode/SoftAP mode/Promiscuous mode

• RTS protection, CTS protection, Immediate Block ACK

• Defragmentation

• TX/RX A-MPDU, RX A-MSDU

• TXOP

• WMM

• CCMP (CBC-MAC, counter mode), TKIP (MIC, RC4), WAPI (SMS4), WEP (RC4) and CRC

• Automatic beacon monitoring (hardware TSF)

3.6 Bluetooth

ESP32 integrates a Bluetooth link controller and Bluetooth baseband, which carry out the baseband protocols

and other low-level link routines, such as modulation/demodulation, packet processing, bit stream processing,

frequency hopping, etc.

3.6.1 Bluetooth Radio and Baseband

The ESP32 Bluetooth Radio and Baseband support the following features:

• Class-1, class-2 and class-3 transmit output powers, and a dynamic control range of up to 24 dB

• π/4 DQPSK and 8 DPSK modulation

• High performance in NZIF receiver sensitivity with over 97 dB of dynamic range

• Class-1 operation without external PA

• Internal SRAM allows full-speed data-transfer, mixed voice and data, and full piconet operation

• Logic for forward error correction, header error control, access code correlation, CRC, demodulation, en-

cryption bit stream generation, whitening and transmit pulse shaping

• ACL, SCO, eSCO and AFH

• A-law, µ-law and CVSD digital audio CODEC in PCM interface

Espressif Systems

ESP32 Datasheet V3.0

ESP32 Datasheet(PDF) 26 Page - ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD.