User's Guide

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1. Introduction
1.1 Overview
ESP32 is a single 2.4 GHz Wi-Fi-and-Bluetooth combo chip designed with the
TSMC ultra-low-power 40 nm technology. It is designed to achieve the best power
and RF performance, showing robustness, versatility and reliability in a wide variety
of applications and power scenarios.
1.2. WiFi Key Features
• 802.11 b/g/n
• 802.11 n (2.4 GHz), up to 150 Mbps
• WMM
• TX/RX A-MPDU, RX A-MSDU
• Immediate Block ACK
• Defragmentation
• Automatic Beacon monitoring (hardware TSF)
• 4 × virtual Wi-Fi interfaces
• Simultaneous support for Infrastructure Station, SoftAP, and Promiscuous modes
• Antenna diversity
• Operating temperature range -40C ~ 85C
1.3. Bluetooth Key Features
• Compliant with Bluetooth v4.2 BR/EDR and Bluetooth LE specifications
• Class-1, class-2 and class-3 transmitter without external power amplifier
• Enhanced Power Control
• +9 dBm transmitting power
• NZIF receiver with –94 dBm Bluetooth LE sensitivity
• Adaptive Frequency Hopping (AFH)
• Standard HCI based on SDIO/SPI/UART
• High-speed UART HCI, up to 4 Mbps
• Bluetooth 4.2 BR/EDR Bluetooth LE dual mode controller
• Synchronous Connection-Oriented/Extended (SCO/eSCO)
• CVSD and SBC for audio codec
• Bluetooth Piconet and Scatternet
• Multi-connections in Classic Bluetooth and Bluetooth LE
• Simultaneous advertising and scanning
• Operating temperature range -40C ~ 85C