Grove – Blueseeed LE – Dual model (HM13) uses CSR dual-mode Bluetooth chip, with the ARM architecture single chip which supports AT instructions, Users can develop flexibly according to the serial baud rate, equipment name, pairing password.

Getting Started with SeeedStudio Grove BLE (dual model)

1. BT Version: Bluetooth Specification V4.0 & BLE
2. UART send and receive max bytes is 512
3. Other devices to the module in SPP mode: 90 Bytes per packet
4. Other devices to the module in BLE mode: 20 Bytes per packet
5. Two data transmission mode, balance mode and high-speed mode
6. Service: Slave SPP, Peripheral BLE, UUID FFE0, FFE1
7. Security: Authentication and encryption
8. Working frequency: 2.4GHz ISM band
9. Modulation method: GFSK(Gaussian Frequency Shift Keying)
10. RF Power: -23dbm, -6dbm, 0dbm, 6dbm.
11. Speed: Asynchronous: 3K Bytes
12. Synchronous: 3K Bytes
13. Power: +3.3/+5.0VDC 50mA
14. Long-range: SPP 30 meters, BLE 60 meters
15. Power: SPP 13.5mA, BLE 9.5mA
16. Working temperature:–5 ~ +65 Centigrade