BLE Micro is a Tiny Bluetooth 4.0 Development Board

DFRobot Bluno is a Bluetooth 4.0 LE development board following Arduino UNO form factor, and powered by TI CC2540 chipset. The board sells for $24.90 on their online store, and the company provides firmware and mobile app source code, but if you ever wanted a similar solution in a much smaller form factor, and powered by a coin cell battery, the company has now launched BLE Micro board.

BLE Micro board specifications:

• Bluetooth Chip – Texas Instruments CC2540 8051 MCU with USB, Bluetooth 4.0 LE connectivity
• Wireless Connectivity
  • Frequency: 2.4GHz
  • Transfer rate:  ≤1Mbps
  • Modulation: GFSK, Bluetooth low power, V4.0
  • Sensitivity: -93dB
  • Transmission distance – 30m in free space
• USB – 1x micro USB port
• Expansion – 21 through holes with reset, power signals, UART, and GPIOs.
• Input Voltage: +3.3 DC
• Power Consumption – Working: 10.6mA average, ready mode:8.7mA
• Temperature Range – -10 ℃ ~ +65 ℃
• Dimensions – 49mm x 35mm

You can find more details including schematics, AT command set, links and info for Android and iOS apps in the Wiki.

DFrobot’s BLE Micro board is sold for $19.90 in single quantity and a bit lower in higher quantities, e.g. $17 per unit for 10 pieces or more.

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