DFRobot’s New FireBeetle ESP32 Boards ESP32-UE and ESP32-E Now Features External Antenna

DFRobot’s New FireBeetle ESP32 Boards ESP32-UE and ESP32-E Now Features External Antenna


DFRobot has recently added two new boards to its FireBeetle 2 series called the FireBeetle 2 ESP32-UE and FireBeetle 2 ESP32-E  both the boards are equipped with an ESP32-WROOM-32UE-N16R2 MCU and feature onboard GDI display interface and onboard charging circuits. The main difference between the two is that  The ESP32-UE variant has support for an external antenna the E variant does not.

The ESP32 used in both boards features a Tensilica LX6 dual-core processor running at 240MHz clock speed. It also has 520KB SRAM, 448KB ROM, 16MB Flash, and 2MB PSRAM these features along with 17 digital pins, 11 analog pins, 3 UART interfaces, 1 SPI interface, 1 I2C interface, 1 I2S interface, 2 DAC interfaces make this device suitable for applications like home automation, environmental data monitoring, smart lighting control, and many others.

Previously we have written about various development boards like the Waveshare ESP32-S3-Matrix Dev board, NanoCell V2.1 board, Waveshare ESP32-S3-Tiny board, and many others feel free to check those out if you are looking for a unique ESP32-based dev boards.

Both the modules can be powered by either USB or a 3.7V lithium battery, switching automatically between them. They’re small, making them easy to add to your projects, and they work with popular programming tools like Arduino IDE, ESP-IDF, and MicroPython.

FireBeetle ESP32 Boards (ESP32-UE and ESP32-E) Specifications

  • MCU Parameters
    • Processor: Tensilica LX6 dual-core processor
    • Clock Frequency: 240MHz
    • SRAM: 520KB
    • ROM: 448KB
    • Flash: 16MB
    • PSRAM: 2MB
    • On-chip Clock: 40MHz crystal oscillator, 32.768KHz crystal oscillator
  • Wireless Parameters
    • Wi-Fi Standard: FCC/CE/TELEC/KCC
    • Wi-Fi Protocol: 802.11 b/g/n/d/e/i/k/r (802.11n, up to 150 Mbps)
    • Wi-Fi Frequency Range: 2.4~2.5 GHz
    • Bluetooth Protocol: Compliant with Bluetooth V4.2 BR/EDR and BLE standards
    • Bluetooth Audio: CVSD and SBC audio
    • Bluetooth Frequency Range: 2.4~2.5GHz
  • Peripheral Parameters
    • Digital Pins × 17: IO0, IO1, IO2, IO3, IO4, IO12, IO13, IO14, IO15, IO17, IO18, IO19, IO21, IO22, IO23, IO25, IO26
    • Analog Pins × 11: IO0, IO2, IO4, IO12, IO13, IO14, IO15, IO25, IO26, I34, I35
    • UART Interfaces: ×3
    • SPI Interface: ×1
    • I2C Interface: ×1
    • I2S Interface: ×1
    • DAC Interface: ×2
    • Touch Interfaces: ×7
    • LED PWM Channels: ×16
    • RGB_LED: WS2812
    • Display Interface: GDI
  • Power Parameters
    • USB-C interface: 5V DC
    • PH2.0 interface: 3.7V Li-ion
    • VCC pin: 5V DC
  • Other Parameters
    • Interface Compatibility: FireBeetle V2 series compatible
    • Module Size: 25.4mm × 60mm
    • Weight: 23.4g

For those who want to get started with the board, the company provides adequate documentation along with a product wiki, pinout, dimensions, datasheet, schematic, 2D, and 3D files, and many more.

Both the FireBeetle 2 ESP32-UE and the FireBeetle 2 ESP32-E are priced at $12.90 and can be purchased from the DFRobot website. The product will ship with all the necessary accessories that you need to get up and running with the board including the board itself, male-female pin headers, and others. However, the ESP32-UE variant will ship with an external antenna according to the product page.

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About Debashis Das

Tech Content Creator | Hardware Design Engineer | IoT Enthusiast | Digital Storyteller | Video Creator | From crafting digital dialogues at Semicon Media to orchestrating online engagement at Electronics-lab.com, my journey is about making tech talk interesting and accessible. In the quiet corners of the day, I advocate for easier tech education, one tutorial at a time. Let's connect and keep the digital dialogue going!

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