Grove - Blueseeed LE - Dual model (HM13) v1.0 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.

Specification

K2: During connected status, It would be disconnected by pressing K2 more than 100ms.During the sleeping model, It could be restored through pressing K2 factory settings.

U1: U1 is the wireless module,It includes an automatic power-on reset circuit.

D1: The led display two work models: sleeping whit It slowly flashing;connected status whit It continuously lighting.

J1:The standard Grove connector.

Features

• 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: +3.3/+5.0VDC 50mA

• Long range: SPP 30 meters, BLE 60 meters

• Power: SPP 13.5mA, BLE 9.5mA

• Working temperature:–5 ~ +65 Centigrade