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FireBeetle 2 ESP32-E, specially designed for IoT, is an ESP-WROOM-32E-based main controller board with dual-core chips.
It supports WiFi and Bluetooth dual-mode communication and features a small size, ultra-low power consumption, on-board charging circuit, and easy-to-use interface, which can be conveniently used for smart home IoT, industrial IoT applications, and wearable devices, and so on. You can easily create your own IoT smart home system when connecting it with an IoT platform like IFTTT.
FireBeetle 2 ESP32-E supports Arduino programming and will support Scratch graphical programming and MicroPython programming very soon. We provide you with detailed online tutorials and application cases, and there are thousands of sensors with welding-free Gravity interfaces and actuators to help you get started easily. Besides, the stamp hole design makes it able to be easily embedded in your PCB, greatly saving your costs and time to build and test a prototype.
Note: FireBeetle 2 and FireBeetle pins and sizes are not compatible, and neither are the expansion boards.
Figure 2. Pinout
Power Parameters - Input Voltage
MCU Parameters
Wireless Parameters—Wi-Fi Protocol:
Wireless Parameters—Bluetooth Protocol:
Peripheral Parameters
Other Parameters
Aug 14, 2025
Easy to order and worked well with my weather station.
May 10, 2025
This is an amazing product
Mar 31, 2025
great board. Deep sleep ( IN THIS OLD VERSION) still 11 microA and great for my solar&battery projects. Form factor thinner than other ESP32 boards, allows to have one row of pins on each side of the mid sized breadboards. Battery management very good, solar panels working at their MPPT, battery recharged also during deep sleep periods.