Part comparison

Arduino Nano R4 vs DFRobot FireBeetle 2 ESP32-E

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

13 shared specs1 scored

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ArduinoArduino Nano R4ABX00142

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DFRobotDFRobot FireBeetle 2 ESP32-EDFR0654

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Directional spec summary

Counts across 1 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

13 specifications compared side by side.

Arduino Nano R4 / DFRobot FireBeetle 2 ESP32-E
Compare bySpecification	AArduinoArduino Nano R4	BDFRobotDFRobot FireBeetle 2 ESP32-E
Electrical1
Logic voltageUse-dependent	5 V	3.3 V
Control & communication12
Board kind	Main controller	Main controller
Board architecture	Standalone board	Standalone board
Primary applicationUse-dependent	embedded_control;industrial_automation;robotics	IoT
Processor vendorUse-dependent	Renesas	Espressif
ProcessorUse-dependent	RA4M1	ESP-WROOM-32E
Processor architectureUse-dependent	Arm Cortex-M4	Xtensa LX6 dual-core
Processor clock	48 MHz	240 MHz192 MHz higher
SDK available	Yes	Yes
Firmware updatable	Yes	Yes
Communication interfacesUse-dependent	CAN (external transceiver required);I2C;USB-C	Wi-Fi;Bluetooth 4.2
Compute board kind	microcontroller	microcontroller
MicrocontrollerUse-dependent	RA4M1	ESP-WROOM-32E

AArduinoArduino Nano R4

BDFRobotDFRobot FireBeetle 2 ESP32-E

Electrical1

Logic voltageUse-dependent

Part A5 V

Part B3.3 V

Control & communication12

Board kind

Part AMain controller

Part BMain controller

Board architecture

Part AStandalone board

Part BStandalone board

Primary applicationUse-dependent

Part Aembedded_control;industrial_automation;robotics

Part BIoT

Processor vendorUse-dependent

Part ARenesas

Part BEspressif

ProcessorUse-dependent

Part ARA4M1

Part BESP-WROOM-32E

Processor architectureUse-dependent

Part AArm Cortex-M4

Part BXtensa LX6 dual-core

Processor clock

Part A48 MHz

Part B240 MHz192 MHz higher

SDK available

Part AYes

Part BYes

Firmware updatable

Part AYes

Part BYes

Communication interfacesUse-dependent

Part ACAN (external transceiver required);I2C;USB-C

Part BWi-Fi;Bluetooth 4.2

Compute board kind

Part Amicrocontroller

Part Bmicrocontroller

MicrocontrollerUse-dependent

Part ARA4M1

Part BESP-WROOM-32E

Product sources

Product sources used by this comparison

Arduino Nano R4Open source ↗

DFRobot FireBeetle 2 ESP32-EOpen source ↗