FireBeetle Board-328P with BLE4.1
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FireBeetle Board-328P with BLE4.1

( DFR )

DFRobot FireBeetle series are low power consumption microcontrollers designed for Internet of Things (IoT) development. This Bluetooth controller combines Bluetooth Low Energy 4.1 with Arduino controller, offering functions similar to the former Bluno series but with lower power consumption. 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.

FireBeetle BLE 4.1 is compatible with Bluno series (BLE 4.0) and performs much better. It equipped with more stable DIALOG Bluetooth 4.1 chip, supporting maximum 4Kbyte/s transmission rate and low power consumption (25uA POWER DOWN). It can be directly applied to low power consumption application such as wearable and intelligent tools and so on.

It also supports multiple Bluetooth cascade, KISS connection (approach connection) and compatible with Bluno series. Its connection can be realized by holding host BOOT and moving to the target peripheral device.

Supported by the following covers - 

 FireBeetle Covers-24×8 LED Matrix (Red) 

FireBeetle Covers-Gravity I/O Expansion Shield 

FireBeetle Covers - DC Motor & Stepper Driver 



Support Arduino IDE program

Support BLE 4.1 central and peripheral switch

Support Bluetooth serial port data transmit

Support Bluetooth peer to peer (P2P) wireless programming

Support Bluetooth 4.1 multiple device cascade (maximum:4)

Support Arduino Bluetooth library (support multiple Bluetooth connection)

Support low power consumption Bluetooth (standby current: 25uA; enabled interrupt current: 70uA)

Double interruption to wake up:

BLE4.1 awake Atmage328P by D2 (high level awake)

Atmage328P awake BLE4.1 by D3 (low level awake)

Support KISS connection (approach connection)

Support Bluetooth firmware update

Support USB charge

Support lithium battery power supply

Equipped with status LEDs



Processor: ATMEGA328P

Bootloader: Arduino Pro or Pro Mini, ATmega328 (3.3V, 8MHz)

Operating Current: 3.3V

VCC I/O Voltage: 3.7V~5.5V

Lithium Battery Voltage: 3.7V

Support maximum 4Kbyte/s transmission rate (more device, lower rate)

Support low power consumption: 25uA (POWER DOWN); 70uA (enabled interruption)

Support maximum discharge current: 600mA (LDO-3.3V OUTPUT)

Support maximum charge current: 400Ma

Digital Interfaces: 14

Analog Interfaces: 6

SPI: 1

I2C: 1



Interface Mode: 2.54mm (Pin/Female header), soldering free in default

Dimension: 58 * 29 mm/ 2.28 * 1.14 inches



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