Attributes

Brand	-
Category	Electronic Components / Maker DIY / Development Boards & Control Boards
Origin	-
Microcontroller	ESP32-WROOM-E
Operating Voltage	3.3V
Input Voltage	3.3V - 5.5V
Wi-Fi Protocol	802.11 b/g/n
Bluetooth Version	v4.2 BR/EDR and BLE
Digital I/O Pins	21
Analog Input Channels	14
Flash Memory	4MB
Dimensions	59mm x 26mm
Interface	USB Type-C

5 reviews

Anonymous

Apr 13, 2026

Rating: 5/5

Stable Connection

Wi-Fi range is better than expected compared to older ESP8266 boards. Bluetooth pairing is also very stable.

Anonymous

Apr 11, 2026

Rating: 5/5

Perfect for prototypes

USB-C is a huge plus for modern setups. The board is compact and fits easily into small enclosures.

Anonymous

Apr 08, 2026

Rating: 4/5

Great features

Low power mode is impressive. Setup was easy using the Arduino IDE. Only wish the documentation was slightly more detailed.

Anonymous

Apr 07, 2026

Rating: 5/5

Excellent IoT Board

Works flawlessly with Home Assistant. The low power consumption is exactly what I needed for my battery-powered sensors.

Anonymous

Mar 03, 2026

Rating: 4/5

Good value

Solid board for the price. Documentation could be clearer for absolute beginners, but plenty of community support exists.

5 FAQ

Q: Is this board compatible with the Arduino IDE?

A: Yes, the FireBeetle 2 ESP32-E is fully compatible with the Arduino IDE using the ESP32 board manager package.

Q: What is the maximum current per GPIO pin?

A: The maximum current per GPIO pin is typically around 12mA, with a total current limit for the chip to consider.

Q: Can this run directly off a lithium battery?

A: Yes, it supports a wide input voltage range suitable for single-cell lithium batteries, often via a dedicated battery interface.

Q: Are the pin headers pre-soldered?

A: No, the board usually comes without pre-soldered headers to allow for flexible mounting options.

Q: Does it support MicroPython?

A: Yes, you can flash MicroPython firmware onto the ESP32 chip to program it using Python.

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