Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Microcontroller | ESP32-WROOM-32 |
| Operating Voltage | 3.3V |
| Input Voltage | 3.3V - 5.5V |
| Flash Memory | 4MB |
| SRAM | 520KB |
| Wi-Fi Standard | 802.11 b/g/n (2.4 GHz) |
| Bluetooth Version | v4.2 BR/EDR and BLE |
| Digital I/O Pins | 21 |
| Dimensions | 46mm x 27mm |
| Weight | 6g |
Anonymous
Mar 30, 2026
Rating: 5/5
Excellent power management
Specifically bought this for its low power consumption claims, and it delivers. My solar-powered weather station has been running without issues through cloudy days.
Anonymous
Mar 30, 2026
Rating: 5/5
Reliable and easy to program
Works flawlessly with the Arduino IDE and ESP-IDF. The built-in antenna performs better than expected in my smart home setup. Very happy with this purchase.
Anonymous
Mar 20, 2026
Rating: 4/5
Great board, minor documentation gaps
Hardware quality is excellent and the WiFi connection is stable. However, finding specific pinout diagrams for the low-power modes took some digging in the forums. Otherwise, highly recommended.
Anonymous
Mar 17, 2026
Rating: 5/5
Ideal for learning embedded systems
As a student, this board provided everything I needed to learn about Bluetooth and WiFi integration. The community support is huge, making troubleshooting easy.
Anonymous
Mar 10, 2026
Rating: 5/5
Perfect for low-power IoT projects
The deep sleep capabilities on this board are impressive. I've been running a sensor node on a single battery charge for over three weeks. The form factor is also great for compact enclosures.
Anonymous
Mar 03, 2026
Rating: 4/5
Solid performance for the price
I use these in a fleet of small robots. They handle dual-core processing well. The only reason for 4 stars is that the USB connector feels slightly fragile compared to other boards.
Q: Is there a separate antenna connector for external antennas?
A: This specific model uses an onboard PCB antenna. If you require an external antenna connector (IPEX), please look for the FireBeetle ESP32-E variant.
Q: Does this board support MicroPython?
A: Yes, the FireBeetle ESP32 is fully compatible with MicroPython. You can flash the firmware using esptool.py and start coding immediately.
Q: How many PWM channels are available?
A: The ESP32 chip supports up to 16 independent PWM channels, which can be mapped to almost any GPIO pin on the FireBeetle board.
Q: What is the maximum current draw in deep sleep mode?
A: In deep sleep mode with RTC memory retained, the current consumption is typically around 10 microamps, depending on your specific peripheral configuration.
Q: Can I power this directly from a 5V USB source?
A: Yes, the board includes an onboard LDO regulator that allows you to power it via the VIN pin or USB with an input range of 3.3V to 5.5V.
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