Description
Reviews
| 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 |
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.
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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