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

SKU:DFR0478

INTRODUCTION
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.

Name WiDo Beetle ESP32 FireBeetle ESP8266 FireBeetle ESP32

SKU DFR0321 DFR0575 DFR0489 DFR0478

Microcontroller CC3000 ESP32 ESP8266 ESP32

Power supply USB or DC2.1 USB USB or 3.7V Lipo USB or 3.7V Lipo
interface

USB Powered 7 - 12 3.5 - 6.5 3.3 - 5.0 3.3 - 5.0

Operating 5V 3.3V 3.3V 3.3V

CPU Frequency 16 240 160 240

Flash(M) - 16 16 16

SRAM(KB) - 520 50 520

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 2.4 GHz 2.4 - 2.5 GHz 2.4 - 2.5 GHz 2.4 - 2.5 GHz
range

UART 1 1 1 1

I2C 1 1 1 1

I2S 1 1 1 1

SPI 1 1 1 1

Compatible Arduino IDE 1.6+ Arduino IDE 1.6+ Arduino IDE 1.6+ Arduino IDE 1.6+
IDE

Download 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 Integrate a Dual-Core ESP- Arduino、RTOS、 Mobile BLE APP Connection Support. Two
Antenna WROOM-32 module. Support MCU microPython way H-bridged Motor Driver with 2A
and Wi-Fi &Bluetooth dual-mode Programming Support. maximum current and wireless socket.
and SD card slot. communication. V shaped gilded Built-in 32-bit Tensilica
I/O interface, can be sewn on L106 MCU and 10-bit
clothes directly. ADC.

FEATURES
 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
 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.

 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.