BLE (dual mode) Bee uses a CSR dual mode Bluetooth chip, with the single chip ARM architecture which supports AT instructions. Users can develop flexibly according to the serial baud rate, equipment name and pairing password.

• BT Version: Bluetooth Specification V4.0 & BLE
• UART send and receive max bytes is 512
• Other device to module in SPP mode: 90 Bytes per packet
• Other device to module in BLE mode: 20 Bytes per packet
• Two data transmission mode, balance mode and high speed mode
• Working frequency: 2.4GHz ISM band
• Modulation method: GFSK(Gaussian Frequency Shift Keying)
• RF Power: -23dbm, -6dbm, 0dbm, 6dbm.
• Speed: Asynchronous: 3K Bytes
• Synchronous: 3K Bytes
• Security: Authentication and encryption
• Service: Slave SPP, Peripheral BLE, UUID FFE0,FFE1
• Power: +3.3VDC 50mA
• Long range: SPP 30 meters, BLE 60 metersPower: SPP 13.5mA, BLE 9.5mA
• Working temperature:€“5 ~ +65 Centigrade

Board specifications:

• U1:U1 is the wireless module,It includes automatic power on and reset.
• D3:The led displays two working modes: sleep - slowly flashing and connected - continuously lit.
• JP1&JP3:The standard Bee connector.

BLE Bee documentation wiki