FireBeetle 2 ESP32-E IoT Microcontroller

DFRobotSKU: DFR0654
Version:No Headers
Sale price £12
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The FireBeetle 2 ESP32-E, specially designed for IoT, is an ESP-WROOM-32E-based main controller board with dual-core chips.

Available with no headers attached or with female readers pre-soldered (select above). Both versions come with a pack of male and stacking headers too!

The board supports WiFi and Bluetooth dual-mode communication and features an onboard charging circuit with easy-to-use interface, which can be conveniently used for smart home IoT, industrial IoT applications, wearable devices and more. You can easily create your own IoT smart home system when connecting it with an IoT platform such as IFTTT.

FireBeetle 2 ESP32-E supports Arduino programming and will support Scratch graphical programming and MicroPython programming very soon. DFRobot provides detailed online tutorials and application cases, and there are thousands of sensors with solder-free Gravity interface and actuators to help you get started easily. The stamp hole design also 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.


  • ESP32 Dual-core low power main controller, 10uA power consumption
  • WiFi+Bluetooth 4.0 Dual-mode Module
  • GDI Display Port, easy to connect TFT displays
  • Onboard Charging Circuit and PH2.0 lithium Battery Interface


  • Operating Voltage: 3.3V
  • Input Voltage: 3.3V~5.5V
  • Support Low-Power: 10uA
  • Max Discharge Current: 600mA@3.3V LDO
  • Max Charge Current: 500mA
  • Support USB Charging
  • Processor: Tensilica LX6 dual-core processor (One for high-speed connection; one for independent application development)
  • Main Frequency: 240MHz
  • SRAM: 520KB
  • Flash: 32Mbit
  • Wi-Fi Standard: FCC/CE/TELEC/KCC
  • Wi-Fi Protocol: 802.11 b/g/n/d/e/i/k/r (802.11n, speed up to 150 Mbps), A-MPDU and A-MSDU Aggregation, support 0.4us guard interval)
  • Frequency Range: 2.4~2.5 GHz
  • Bluetooth Protocol: Bluetooth v4.2 BR/EDR and BLE standard compliant
  • Bluetooth Audio: CVSD and SBC audio
  • Operating Current: 80mA (Average)
  • Support Arduino download with one-key
  • On-chip Clock: 40MHz crystal, 32.768KHz crystal
  • Digital I/O x10 (Arduino default)
  • Analog Input x5 (Arduino default)
  • SPI x1 (Arduino Default)
  • IIC x1 (Arduino Default)
  • I2S x1 (Arduino Default)
  • RGB_LED: 5/D8
  • Connector: FireBeetle V2 series compatible
  • Operating Temperature: -40°C~+85°C
  • Module Size: 25.4 x 60mm
  • Mount Hole Size: inner diameter of 2.0mm


  • Product wiki
  • Mac Driver (for adding a compatible USB port - thanks to our customer Stephen L for the tip!)

  • Package Contents

    • 1x FireBeetle 2 ESP32-E (either with or without female headers attached - select before adding to cart)
    • 1x 18pin-2.54mm Pitch Pin
    • 1x 18pin-2.54mm Pitch Pin Female
    • 1x 14pin-2.54mm Pitch Pin
    • 1x 14pin-2.54mm Pitch Pin Female

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