Espressif ESP32 User Guide

1. Introduction
Serial Terminal Tool
We recommend using Minicom as a serial terminal tool to show the communication
information and debug code.
Uploading Tool
We recommend using Python 2.6 or 2.7 and esptool_ESP32.py to upload firmware to the
flash.
•
For the latest version of Python, go to Download Python.
•
esptool_ESP32.py file is in the ESP32 RTOS SDK > tools folder, refer to Figure 1-2.
Package Components.
•
For the details of instructions, refer to 2.5.2 Uploading Files.
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