Espressif ESP32 User Guide

1. Introduction
1.2.2.
Software
Development Platform
ESP32 RTOS SDK is a development platform provided for the users to develop their project.
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For the latest version, go to Download ESP32 RTOS SDK in Github.
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For the package components, refer to Figure 1-2.
Figure 1-2. Package Components
Bin files to be downloaded to the flash
Example codes of SDK applications
Header files required for compilation
Files for SDK compilation and link
Library files of SDK compilation
Library files of open source code
Compilation tools
Bin files for SSC
driver codes
Sample project template
Extra head files for compiling
Header files provided by Espressif
Header files of freeRTOS
Header files of Json library
Header files of LwIP library
Header files of SSL library
Espressif
2015.12
Confidential

Espressif ESP32 Specifications

General

Clock Speed	Up to 240 MHz
SRAM	520 KB
Wi-Fi	802.11 b/g/n
Bluetooth	Bluetooth v4.2 BR/EDR and BLE
GPIO Pins	34
Operating Voltage	2.2V to 3.6V
Operating Temperature	-40°C to +125°C
Processor	Tensilica Xtensa LX6
Flash Memory	4MB (varies by module)
ADC	12-bit SAR ADC up to 18 channels
DAC	2 channels of 8-bit DACs
I2C	2 x I2C
I2S	2 x I2S
Interfaces	CAN 2.0
SPI	4 SPI interfaces
UART	3 x UART