Part comparison

Arduino Nano 33 BLE Rev2 vs DFRobot FireBeetle 2 ESP32-E

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

17 shared specs2 scored

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ArduinoArduino Nano 33 BLE Rev2ABX00071

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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

17 specifications compared side by side.

Arduino Nano 33 BLE Rev2 / DFRobot FireBeetle 2 ESP32-E
Compare bySpecification	AArduinoArduino Nano 33 BLE Rev2	BDFRobotDFRobot FireBeetle 2 ESP32-E
Electrical3
Minimum input voltageUse-dependent	5 V	3.7 V
Maximum input voltageUse-dependent	18 V	5 V
Logic voltage	3.3 V	3.3 V
Control & communication14
Board kind	Main controller	Main controller
Board architecture	Standalone board	Standalone board
Primary applicationUse-dependent	embedded_control;wearable;mobile_robot	IoT
Processor vendorUse-dependent	Nordic Semiconductor	Espressif
ProcessorUse-dependent	nRF52840	ESP-WROOM-32E
Processor architectureUse-dependent	Arm Cortex-M4	Xtensa LX6 dual-core
Processor clock	64 MHz	240 MHz176 MHz higher
Flash	1 MB	4 MB3 MB higher
SDK available	Yes	Yes
Firmware updatable	Yes	Yes
Wireless interfacesUse-dependent	Bluetooth LE	Wi-Fi;Bluetooth 4.2
Communication interfacesUse-dependent	UART;I2C;SPI;Bluetooth LE	Wi-Fi;Bluetooth 4.2
Compute board kind	microcontroller	microcontroller
MicrocontrollerUse-dependent	nRF52840	ESP-WROOM-32E

AArduinoArduino Nano 33 BLE Rev2

BDFRobotDFRobot FireBeetle 2 ESP32-E

Electrical3

Minimum input voltageUse-dependent

Part A5 V

Part B3.7 V

Maximum input voltageUse-dependent

Part A18 V

Part B5 V

Logic voltage

Part A3.3 V

Part B3.3 V

Control & communication14

Board kind

Part AMain controller

Part BMain controller

Board architecture

Part AStandalone board

Part BStandalone board

Primary applicationUse-dependent

Part Aembedded_control;wearable;mobile_robot

Part BIoT

Processor vendorUse-dependent

Part ANordic Semiconductor

Part BEspressif

ProcessorUse-dependent

Part AnRF52840

Part BESP-WROOM-32E

Processor architectureUse-dependent

Part AArm Cortex-M4

Part BXtensa LX6 dual-core

Processor clock

Part A64 MHz

Part B240 MHz176 MHz higher

Flash

Part A1 MB

Part B4 MB3 MB higher

SDK available

Part AYes

Part BYes

Firmware updatable

Part AYes

Part BYes

Wireless interfacesUse-dependent

Part ABluetooth LE

Part BWi-Fi;Bluetooth 4.2

Communication interfacesUse-dependent

Part AUART;I2C;SPI;Bluetooth LE

Part BWi-Fi;Bluetooth 4.2

Compute board kind

Part Amicrocontroller

Part Bmicrocontroller

MicrocontrollerUse-dependent

Part AnRF52840

Part BESP-WROOM-32E

Product sources

Product sources used by this comparison

Arduino Nano 33 BLE Rev2Open source ↗

DFRobot FireBeetle 2 ESP32-EOpen source ↗