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.
The post BLE Micro is a Tiny Bluetooth 4.0 Development Board appeared first on Electronics-Lab.