1. Introducción

1.1. ESP32 vs Arduino

Function ESP32 Arduino Mega2560
Microcontroller Xtensa Dual Core 32-bit LX6 microprocessor ATMega2560
Flash Memory 4MB 256 KB 
CLOCK Speed Upto 240 MHz 16 MHz
Operating Voltage 3.3V DC 5V DC
Input Voltage 3.3V DC 7-12V
DC Current per I/O Pin 40 mA 20 mA
DC Current For 3.3V Pin 50 mA 50 mA
Digital IO Pins 36 54
Analog Input Pins Up to 18 16
Wi-Fi Yes,802.11 b/g/n No
Bluetooth Yes, Bluetooth v4.2 BR/EDR and BLE specification No