FireBeetle Board-328P with BLE4.1

The DFRobot FireBeetle series are low-power microcontrollers for IoT projects. This board combines Bluetooth Low Energy 4.1 with an ATmega328P and runs like an Arduino Pro Mini at 3.3 V and 8 MHz. It offers similar functions to the earlier Bluno series, is compatible with it and needs less power: 25 µA in POWER DOWN. The DIALOG Bluetooth chip transfers up to 4 Kbyte/s.

Recommended Accessories:

• FireBeetle Covers-Gravity I/O Expansion Shield
• Firebeetle Covers OLED Display 128x64 Blue
• 0.3m Micro USB 2.0 Cable blue

Features:

• Compatible with products of the DFRobot FireBeetle series
• Arduino IDE: select board «Arduino Pro or Pro Mini», ATmega328 (3.3 V, 8 MHz)
• Bluetooth 4.1, cascade with up to 4 devices, the transfer rate drops with more devices
• Powered via USB 5 V or an external 3.7 V lithium battery (JST 2.0 mm connector), the battery is not included
• Charge controller on the board charges the battery via USB
• RST and BOOT buttons, LEDs for CHG, LINK, TX and RX (marking)
• Mounting holes 3.1 mm

Application Examples:

• Bluetooth connection to smartphones and other devices
• Low-power sensor nodes with battery
• Setups with FireBeetle Covers

Documentation:

• DFRobot Wiki
• Schematic
• Layout drawing

Technical Data:

• Manufacturer: DFRobot
• Manufacturer SKU: DFR0492
• Processor: ATmega328P (same microcontroller as on the Arduino UNO)
• Bootloader: Arduino Pro or Pro Mini, ATmega328 (3.3 V, 8 MHz)
• Operating voltage: 3.3 V
• VCC I/O voltage: 3.7 to 5.5 V
• Lithium battery voltage: 3.7 V
• Bluetooth: BLE 4.1, DIALOG, up to 4 Kbyte/s
• Power consumption: 25 µA (POWER DOWN), 70 µA (interrupt enabled)
• Maximum discharge current: 600 mA (RT9080)
• Maximum charge current: 400 mA
• Digital I/O: 14
• Analog interfaces: 6
• Bus: 1× SPI, 1× I2C, 1× UART
• LED_BUILTIN: D13
• Pin pitch: 2.54 mm
• Dimensions: 58 × 29 × 8.5 mm
• Weight: 24 g

Scope of Delivery:

• 1× FireBeetle Board-328P with BLE4.1
• 2× Pin header 1×18 pin
• 2× Female header short pins 1×18 pin