Firebeetle Esp32 Iot Mcu

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Firebeetle Esp32 Iot Mcu

Firebeetle Esp32 Iot Mcu

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Development Boards & Kits - Wireless FireBeetle ESP32 IOT MCU



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FireBeetle ESP32 IoT Microcontroller (Supports Wi-Fi & Bluetooth) Overview

DFRobot FireBeetle series is the low-power consumption micro-controller intentionally designed for Internet of Things (IoT) projects. FireBeetle Board - ESP32 integrates a Dual-Core ESP-WROOM-32 module, which supports MCU and Wi-Fi &Bluetooth dual-mode communication. The electric current is just 10μA in the deep-sleep mode. The main controller supports two power supply methods: USB and 3.7V external lithium battery. And both USB and external DC can charge the Lipo battery directly.

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Name WiDo Beetle ESP32 FireBeetle ESP8266 FireBeetle ESP32
SKU DFR0321 DFR0575 DFR0489 DFR0478
Microcontroller CC3000 ESP32 ESP8266 ESP32
Power supply interface USB or DC2.1 USB USB or 3.7V Lipo USB or 3.7V Lipo
USB Powered or External (V) 7 - 12 3.5 - 6.5 3.3 - 5.0 3.3 - 5.0
Operating Voltage (V) 5V 3.3V 3.3V 3.3V
CPU Frequency (MHz) 16 240 160 240
Flash(M) - 16 16 16
SRAM(KB) - 520 50 520
Analog pins 6 4 1 5
Digital pins 14 4 10 10
Wi-Fi protocol 802.11b/g 802.11b/g/n 802.11b/g/n 802.11b/g/n
Frequency range 2.4 GHz 2.4 - 2.5 GHz 2.4 - 2.5 GHz 2.4 - 2.5 GHz
UART 1 1 1 1
I2C 1 1 1 1
I2S 1 1 1 1
SPI 1 1 1 1
Compatible IDE Arduino IDE 1.6+ Arduino IDE 1.6+ Arduino IDE 1.6+ Arduino IDE 1.6+
Download Mode Micro USB Micro USB Micro USB Micro USB
Arduino UNO Compatible × × ×
Lipo Charger Support ×
Dimension(mm) 75*54 35*34 58*29 58*29
 Weight (g) 30 g 12 g 24 g 24 g
Price($) $29.9 $9.9 $11.9 $18.9


On board 2.4G PCB Antenna

and SD card slot.

 Integrate a Dual-Core ESP-WROOM-32 module. Support MCU and Wi-Fi &Bluetooth dual-mode communication. V shaped gilded I/O interface, can be sewn on clothes directly. Arduino、RTOS、microPython Programming Support. Built-in 32-bit Tensilica L106 MCU and 10-bit ADC. Mobile BLE APP Connection Support. Two way H-bridged Motor Driver with 2A maximum current and wireless socket.
You may also check Bluetooth microcontrollor selection guide for more information.FireBeetle ESP32 IOT Microcontroller Size Comparsion firebeetle esp32 has made a special hardware design for Arduino IDE. You can make a download without switching boot-mode manually. It supports Arduino, IDF (linux), micropython etc. Moreover, FireBeetle made a pin mapping for Arduino IDE. It can be configured with Dx transport, compatible with arduino UNO and reduce the entry barrier.

The small size and high performance makes FireBeetle become idea solution for IOT low power consumption projects.

FireBeetle ESP32 IOT Microcontroller Details Please kindly note that developers are the most common users of esp32 dfrobot board and not all of the peripherals have examples for reference, and there are still some bugs being found and fixed. For Arduino IDE, all GPIO function, I2C/SPI communication has been working. But the other functions are still under development. We recommend this board for experienced engineer. Version Upgrade: 1. Add a new anti-reverse connection silk-screen.  2.Change the Lipo battery connecter direction.

ESP32 Bluetooth(BLE) Temperature Sensor

DFRobots Firebeetle ESP32 Capacitive touch test

Brew Probe - WiFi Temperature Monitor

Build a talking Alarm Clock synced to Google calendars Hardware Components: DFPlayer - A Mini MP3 Player For Arduino FireBeetle Covers-24×8 LED Matrix (Blue) FireBeetle ESP32 IOT Microcontroller  FireBeetle ESP32 Review ESP32 Deep Sleep Tutorial for Low Power Projects FireBeetle ESP32 review  Bluetooth Proximity Detection | FireBeetle ESP32 ESP32, more powerful than any other Arduino


  • Compatible with products in the DFRobot FireBeetle serials
  • Low-power consumption(the electricity current under ultra-low power is 10μA)
  • Quick Response(the top frequency is 400KHz)
  • Cost-effective
  • Small size, convenient to install
  • Specification

    FireBeetle ESP32 IoT Microcontroller (Supports Wi-Fi & Bluetooth) TECH SPECS

  • Working voltage: 3.3V
  • Input voltage: 3.3V~5V
  • Support electric current of low power consumption: 10 μA
  • Support maximum discharge current: 600mA
  • Support maximum charge current: 500mA
  • Support USB charging.
  • Processer: Tensilica LX6 dual core processer (One for high speed connection; one for independent programing).
  • Frequency: 240MHz
  • SRAM:520KB
  • Flash:16MB
  • Wi-Fi standard:FCC/CE/TELEC/KCC
  • Wi-Fi protocol: 802.11 b/g/n/d/e/I/k/r (802.11n, high speed can reach to 150 Mbps), converge A-MPDU and A-MSDU, supporting 0.4us protecting interval.
  • Frequency range: 2.4~2.5 GHz
  • Bluetooth protocol: Comply with BR/EDR/BLE standard of Bluetooth v4.2.
  • Bluetooth audio: the current under low power consumption of CVSD and SBC is 10μA
  • Working current: 80mA in average
  • Frequency range: 2.4~2.5GHz
  • Support one-key downloading.
  • Support micropython.
  • On-chip clock: 40MHz crystal and 32.768 KHz crystal.
  • Digital I/O: 10 (default setting of arduino)
  • Simulative input: 5(default setting of arduino)
  • SPI: 1 (default setting of arduino)
  • I2C: 1 (default setting of arduino)
  • I2S: 1 (default setting of arduino)
  • Interface: FireBeetle series compatible
  • Working temperature: -40℃~+85℃
  • Dimension: 29 × 58(mm)/1.142 x 2.283(inches)
  • The dimension of mounting hole: inner diameter 3.1mm; outside diameter 6mm.
  • Firebeetle Esp32 Iot Mcu
    • Dimensions - 24 mm x 53 mm
    • Product - Development Boards
    • Series - FireBeetle
    • Brand - DFRobot
    • Core - LX6
    • Data Bus Width - 32 bit
    • For Use With - DFRobot FireBeetle
    • Manufacturer - DFRobot
    • Maximum Operating Temperature - + 85 C
    • Minimum Operating Temperature - - 40 C
    • Operating Supply Voltage - 3.3 V to 5 V
    • Product Type - Development Boards & Kits - Wireless
    • RF Frequency - 2.4 GHz to 2.5 GHz
    • Standard Pack Qty - 1
    • Subcategory - Development Tools
    • Tool Is For Evaluation Of - ESP32