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The DFR1139 FireBeetle 2 ESP32-E IoT board is a compact, low-power development board based on the ESP32-WROOM-32E-N16R2 module. It features a 240MHz dual-core processor, 16MB Flash, and 2MB PSRAM, with support for 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 4.2 BR/EDR & BLE.
Designed for IoT and UI-driven projects, it includes an onboard GDI display interface, USB-C power input (5V), and PH2.0 Li-ion battery support (3.7V) with automatic power switching and charging.
I/O options include 17 digital pins, 11 analog pins, 3× UART, 1× SPI, and 1× I²C. It is compatible with Arduino IDE, ESP-IDF, and MicroPython. The board measures 25.4 × 60 mm and uses a PCB antenna for strong wireless performance.
Ideal applications: home automation, robotics control, environmental monitoring, smart lighting, and compact embedded UI panels.
Package includes: FireBeetle 2 IoT microcontroller, two 18-pin headers (male/female), and two 14-pin headers (male/female).