FireBeetle -328P with BLE4.1

Introduction

The FireBeetle Board-328P with BLE4.1 is a low-power consumption microcontroller featuring an ATmega328P processor and a DIALOG BLE 4.1 chip. It operates at 3.3V (8MHz) and is compatible with Arduino Pro/Pro Mini. The board supports both BLE central and peripheral modes, multi-device cascade (up to 4 devices), and P2P wireless programming. Key low-power features include a 25µA standby current and dual interrupt wakeup capabilities. It has an onboard lithium battery charging circuit (400mA max) and can be powered by a 3.7V Li-ion battery or 3.7V-5.5V via VCC. Peripherals include 14 digital I/O, 6 analog inputs, SPI, I2C, and UART.

FireBeetle BLE 4.1 is compatible with the Bluno series (BLE 4.0) and performs much better. FireBeetle Board-328P with BLE4.1 is equipped with a more stable DIALOG Bluetooth 4.1 chip, supporting a 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 bluetooth 4.1 multiple devices, KISS connections (approach connections) and is compatible with the Bluno series. Its connection can be realized by holding the host BOOT and moving to the target peripheral device.

Features

• 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 connections)

• 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

Specification

• 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

• UART: 1

• LED_BUILTIN: D13

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

• Dimension: 58 29 mm/ 2.28 1.14 inches

Documents

• Product wiki

Packing List

• FireBeetle Board-328P with BLE4.1 x1

• 18 pin-2.54mm x2

• 18 female header-2.54mm x2