Part comparison

Arduino Mega 2560 Rev3 vs DFRobot Romeo ESP32-S3 Robot Development Board

A side-by-side comparison of source-backed specifications within the same subcategory.

16 shared specs2 scored

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ArduinoArduino Mega 2560 Rev3A000067

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DFRobotDFRobot Romeo ESP32-S3 Robot Development BoardDFR0994

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Directional spec summary

Counts across 2 numeric specifications with a clear higher-or-lower direction.

Part A leads

Tied

Part B leads

These are metric-by-metric differences, not an overall performance score. Check the values below.

Specifications

16 specifications compared side by side.

Arduino Mega 2560 Rev3 / DFRobot Romeo ESP32-S3 Robot Development Board
Compare bySpecification	AArduinoArduino Mega 2560 Rev3	BDFRobotDFRobot Romeo ESP32-S3 Robot Development Board
Electrical3
Minimum input voltageUse-dependent	6 V	5 V
Maximum input voltageUse-dependent	20 V	24 V
Logic voltageUse-dependent	5 V	3.3 V
Control & communication13
Board kind	Main controller	Main controller
Board architectureUse-dependent	Microcontroller board	Standalone board
Primary applicationUse-dependent	education;robotics;motion_control	robotics;fpv;ai
Processor vendorUse-dependent	Microchip	Espressif
ProcessorUse-dependent	ATmega2560	ESP32-S3-WROOM-1U-N16R8
Processor architectureUse-dependent	AVR 8-bit	Xtensa LX7 dual-core
Processor clock	16 MHz	240 MHz224 MHz higher
Flash	0.25 MB	16 MB15.75 MB higher
SDK available	Yes	Yes
Firmware updatable	Yes	Yes
Communication interfacesUse-dependent	UART;I2C;SPI;USB	Wi-Fi;Bluetooth 5 LE
Compute board kind	microcontroller	microcontroller
MicrocontrollerUse-dependent	ATmega2560	ESP32-S3-WROOM-1U-N16R8

AArduinoArduino Mega 2560 Rev3

BDFRobotDFRobot Romeo ESP32-S3 Robot Development Board

Electrical3

Minimum input voltageUse-dependent

Part A6 V

Part B5 V

Maximum input voltageUse-dependent

Part A20 V

Part B24 V

Logic voltageUse-dependent

Part A5 V

Part B3.3 V

Control & communication13

Board kind

Part AMain controller

Part BMain controller

Board architectureUse-dependent

Part AMicrocontroller board

Part BStandalone board

Primary applicationUse-dependent

Part Aeducation;robotics;motion_control

Part Brobotics;fpv;ai

Processor vendorUse-dependent

Part AMicrochip

Part BEspressif

ProcessorUse-dependent

Part AATmega2560

Part BESP32-S3-WROOM-1U-N16R8

Processor architectureUse-dependent

Part AAVR 8-bit

Part BXtensa LX7 dual-core

Processor clock

Part A16 MHz

Part B240 MHz224 MHz higher

Flash

Part A0.25 MB

Part B16 MB15.75 MB higher

SDK available

Part AYes

Part BYes

Firmware updatable

Part AYes

Part BYes

Communication interfacesUse-dependent

Part AUART;I2C;SPI;USB

Part BWi-Fi;Bluetooth 5 LE

Compute board kind

Part Amicrocontroller

Part Bmicrocontroller

MicrocontrollerUse-dependent

Part AATmega2560

Part BESP32-S3-WROOM-1U-N16R8

Product sources

Product sources used by this comparison

Arduino Mega 2560 Rev3Open source ↗

DFRobot Romeo ESP32-S3 Robot Development BoardOpen source ↗