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Espressif ESP32 User Guide

Espressif ESP32
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About This Guide
This guide describes the software, firmware environment and development recommendations
required to build an application around the ESP32 development board with build-in ESP32
chip.
This document is structured as follows:
Style Identifiers
This is a code input style.
This is a code output style.
Release Notes
Note:
This guide is only for SDK Verison 1.0.0. Refer to the “ESP32 System Description” for more details on
the ESP32 development board.
Chapter
Title
Subject
Chapter 1
Introduces the ESP32 and software and hardware required.
Explains the software package with details on its architecture and
contents.
Chapter 2
Guides users how to build and upload an application firmware
provided by Espressif.
Appendix
FCC/CE compliance statement.
Code Input
Code output
Date
Version
Release notes
2015.12
V0.1
Confidential for internal use only.
Confidential

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Espressif ESP32 Specifications

General IconGeneral
Clock SpeedUp to 240 MHz
SRAM520 KB
Wi-Fi802.11 b/g/n
BluetoothBluetooth v4.2 BR/EDR and BLE
GPIO Pins34
Operating Voltage2.2V to 3.6V
Operating Temperature-40°C to +125°C
ProcessorTensilica Xtensa LX6
Flash Memory4MB (varies by module)
ADC12-bit SAR ADC up to 18 channels
DAC2 channels of 8-bit DACs
I2C2 x I2C
I2S2 x I2S
InterfacesCAN 2.0
SPI4 SPI interfaces
UART3 x UART

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