FireBeetle ESP32 IOT Microcontroller(V3.0) - DFRobot Wiki


FireBeetle ESP32 IoT Microcontroller

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 FireBeetle is powered by USB or 3.7V external lithium battery. The Lipo battery can be charged directly by USB and external DC.

We have made a special hardware design for FireBeetle Board-ESP32 to make it compatible with 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. So its GPIO ports can be configured just through Dx transport. The board is also compatible with UNO, which greatly reduced the entry barrier.

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

Please kindly note that developers are the most common users of FireBeetle Board-ESP32 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 to experienced engineers.



Board Overview

FireBeetle Board - ESP32 is not only compatible with ESP32 Pinout, but also compatible with Arduino IDE PinMap. Users can directly use Dx(x=0,1,2,3...9) to control the corresponding GPIO port when programming on Arduino IDE.

Fig1: FireBeetle Board-ESP32 PinOUT

warning_yellow.png NOTE:


FireBeetle-ESP32 adopts CH340 serial chip that can be used without driver among most devices. If you find the driver is not installed automatically after plugging into the device, you can install it manually: click to download the CH340 driver program.

Driver Install


Arduino IDE Development Environment Setup


paste url here

Search “FireBeetle-ESP32”, Click Install

Now, the development environment has been installed, you can use it like a normal Arduino board.


warning_yellow.png NOTE: when the main board have been installed under the Linux or MAC environment, you need to install the pyserial module onto the terminal. (Install it by using command sudo easy_install pyserial)

The default LED for FireBeetle Board-ESP32 is D9, input following code:

// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin LED_BUILTIN as an output.

// the loop function runs over and over again forever
void loop() {
  digitalWrite(LED_BUILTIN, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(1000);                       // wait for a second
  digitalWrite(LED_BUILTIN, LOW);    // turn the LED off by making the voltage LOW
  delay(1000);                       // wait for a second

For more code and instructions, please refer to FireBeetle User Manual


FireBettle Board-ESP32 Dimension Diagram


Q&A Some general Arduino Problems/FAQ/Tips
For any questions, advice or cool ideas to share, please visit the DFRobot Forum.

FireBeetle Board-ESP32 Projects - Let your cigarette lighter wearable

More Documents

DFshopping_car1.png Get FireBeetle ESP32 IOT Microcontroller from DFRobot Store or DFRobot Distributor.

Turn to the Top