Part comparison

Arduino Uno Rev3 vs DFRobot FireBeetle ESP32 IoT Microcontroller

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

10 shared specs1 scored

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ArduinoArduino Uno Rev3A000066

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DFRobotDFRobot FireBeetle ESP32 IoT MicrocontrollerDFR0478

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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

10 specifications compared side by side.

Arduino Uno Rev3 / DFRobot FireBeetle ESP32 IoT Microcontroller
Compare bySpecification	AArduinoArduino Uno Rev3	BDFRobotDFRobot FireBeetle ESP32 IoT Microcontroller
Electrical1
Logic voltageUse-dependent	5 V	3.3 V
Control & communication9
Board kind	Main controller	Main controller
Board architectureUse-dependent	Microcontroller board	Standalone board
Primary applicationUse-dependent	education;robotics;embedded_control	IoT
Processor vendorUse-dependent	Microchip	Espressif
ProcessorUse-dependent	ATmega328P	ESP-WROOM-32
Processor clock	16 MHz	240 MHz224 MHz higher
Communication interfacesUse-dependent	USB;GPIO	Wi-Fi;Bluetooth 4.2
Compute board kind	microcontroller	microcontroller
MicrocontrollerUse-dependent	ATmega328P	ESP-WROOM-32

AArduinoArduino Uno Rev3

BDFRobotDFRobot FireBeetle ESP32 IoT Microcontroller

Electrical1

Logic voltageUse-dependent

Part A5 V

Part B3.3 V

Control & communication9

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 AMicrochip

Part BEspressif

ProcessorUse-dependent

Part AATmega328P

Part BESP-WROOM-32

Processor clock

Part A16 MHz

Part B240 MHz224 MHz higher

Communication interfacesUse-dependent

Part AUSB;GPIO

Part BWi-Fi;Bluetooth 4.2

Compute board kind

Part Amicrocontroller

Part Bmicrocontroller

MicrocontrollerUse-dependent

Part AATmega328P

Part BESP-WROOM-32

Product sources

Product sources used by this comparison

Arduino Uno Rev3Open source ↗

DFRobot FireBeetle ESP32 IoT MicrocontrollerOpen source ↗