Description

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)
Pinout:

K2: During connected status, it could be disconnected by pressing the K2 button for more than 100ms. During sleep mode, it could be restored by pressing the K2 (factory settings) button.
U1: U1 is the wireless module, it includes an automatic power-on reset circuit.
D1: The LED works in two modes: Sleeping?is indicated by flashing slowly and?Connected status is indicated by continuous illumination.
J1: The standard Grove connector.

Useful Links:
Getting Started with SeeedStudio Grove BLE (dual model)

Features:?

BT Version: Bluetooth Specification V4.0 & BLE
UART send and receive max bytes is 512
Other devices to the module in SPP mode: 90 Bytes per packet
Other devices to the module in BLE mode: 20 Bytes per packet
Two data transmission mode, balance mode and high-speed mode
Service: Slave SPP, Peripheral BLE, UUID FFE0, FFE1
Security: Authentication and encryption
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
Power: +3.3/+5.0VDC 50mA
Long-range: SPP 30 meters, BLE 60 meters
Power: SPP 13.5mA, BLE 9.5mA
Working temperature:–5 ~ +65 Centigrade

Package Includes :
1 x SeeedStudio Grove BLE (dual model)