DFRobot FireBeetle ESP32-E IoT Microcontroller with Header (Supports Wi-Fi & Bluetooth) 11.1 V 360mAh Orange Lithium Polymer Battery Build custom gadgets

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The built-in balancer automatically equalizes voltage across individual cells during charging

0 LE Connectivity: Low-energy wireless protocol maintains stable connection with smartphones while minimizing power consumption

The fingerprint templates and user data are stored in non-volatile memory and persist during power loss

PCB designs

DFRobot FireBeetle ESP32-E IoT Microcontroller with Header (Supports Wi-Fi & Bluetooth) 11.1 V 360mAh Orange Lithium Polymer Battery Build custom gadgetsDFRobot FireBeetle ESP32 E IoT Microcontroller with Header (Supports Wi Fi & Bluetooth) The DFRobot FireBeetle ESP32 E is a compact, low power IoT microcontroller board featuring the dual core Espressif ESP32 processor with integrated Wi Fi 802. 11 b g n and Bluetooth 4. 2 connectivity. Professional IoT developers, embedded systems engineers, and hardware prototypers use this board to rapidly develop connected applications ranging from smart home