Part comparison

Arduino UNO R4 Minima vs DFRobot FireBeetle 2 ESP32-E

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

16 shared specs2 scored

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ArduinoArduino UNO R4 MinimaABX00080

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DFRobotDFRobot FireBeetle 2 ESP32-EDFR0654

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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 UNO R4 Minima / DFRobot FireBeetle 2 ESP32-E
Compare bySpecification	AArduinoArduino UNO R4 Minima	BDFRobotDFRobot FireBeetle 2 ESP32-E
Electrical3
Minimum input voltageUse-dependent	6 V	3.7 V
Maximum input voltageUse-dependent	24 V	5 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;embedded_control	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
Flash	0.25 MB	4 MB3.75 MB higher
SDK available	Yes	Yes
Firmware updatable	Yes	Yes
Communication interfacesUse-dependent	UART;I2C;SPI;USB	Wi-Fi;Bluetooth 4.2
Compute board kind	microcontroller	microcontroller
MicrocontrollerUse-dependent	RA4M1	ESP-WROOM-32E

AArduinoArduino UNO R4 Minima

BDFRobotDFRobot FireBeetle 2 ESP32-E

Electrical3

Minimum input voltageUse-dependent

Part A6 V

Part B3.7 V

Maximum input voltageUse-dependent

Part A24 V

Part B5 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;embedded_control

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

Flash

Part A0.25 MB

Part B4 MB3.75 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 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 UNO R4 MinimaOpen source ↗

DFRobot FireBeetle 2 ESP32-EOpen source ↗