FireBeetle ESP32 IoT Microcontroller with 250+ ESP32 Tutorials (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 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.

Name	WiDo	Beetle ESP32	FireBeetle ESP8266	FireBeetle ESP32
SKU	DFR0321	DFR0575	DFR0489	DFR0478
Microcontrollers	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
IDE compatible	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
Key Features	On board 2.4G PCB Antenna and SD card slot.	Integrated with 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.

You may also check Bluetooth microcontroller 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 an idea solution for IOT low power consumption projects .

Version Upgrade:

1. Add a new anti-reverse connection silk-screen.

2. Change the Lipo battery connector direction.

Compatible with products in the DFRobot FireBeetle serials