Overview

The DFRobot FireBeetle ESP32 is a compact development board built around the ESP-WROOM-32 dual-core module. It is aimed at low-power IoT projects and combines microcontroller performance with built-in Wi-Fi and Bluetooth support.

The board supports two power options: USB or an external 3.7V lithium battery, with automatic switching between sources. That makes it a practical choice for portable and battery-powered designs where power management matters.

It also offers a range of interfaces for connecting sensors and modules, plus compatibility with multiple programming environments, including Arduino IDE, IDF, MicroPython, and Mind+. DFRobot also provides a large set of tutorials to help users get started and expand their projects.

• ESP-WROOM-32 dual-core chip with Wi-Fi and Bluetooth
• 16MB Flash and 520KB SRAM
• USB and 3.7V lithium battery power with automatic switching
• Compact board for space-limited IoT builds
• Arduino IDE compatible and supports multiple programming methods
• Rich I/O resources including analog, digital, UART, SPI, I2C, and SD card support

Specifications should be verified on the official manufacturer page.