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

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.

You may also check Bluetooth microcontrollor selection guide for more information.

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.

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.

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

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)

LED_BUILTIN：D9

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.

Project 1. ESP32 Deep Sleep Tutorial for Low Power Projects

Introduction: Learn how to put the ESP32 chip into the Deep Sleep mode in order to conserve power and make our projects battery friendly.

Project 2. How to Use Bluetooth(BLE) With ESP32

Introduction: Learn how to use the ESP32 board to send temperature reading over Bluetooth Low Energy.

Project 3. ESP32, more powerful than any other Arduino

Project 4. Controlling Air Conditioner temperature automatically with ESP32

Introduction: This tutorial teaches you how to fetch the real-time weather data with a microcontroller and how to mimic the air conditioner remote control that uses IR (Infrared) technology to control the AC using an IR transmitter.

Project 5. Solar Weather Station Using ESP32

Introduction: This project aims at building a Weather Station and send the data to your channel. The system will be placed on the balcony and will retrieve temperature, humidity and air pressure.

Product Wiki 

FireBeetle ESP32 IOT Microcontroller x1

18 pin-2.54mm x2

18 female header-2.54mm x2