◆Fully qualified Bluetooth 4.2/4.0/3.0/2.1/2.0/1.2/1.1
◆Dimension: 13mm x 26.9mm x 2mm
◆Class 1.5 support(high output power)
◆The default UART Baud rate is 115.2Kbps and can support from 1200bps up to 921Kbps.
◆UART, I2C,PCM / I2S data connection interfaces.
◆Bluetooth stack profiles support: SPP, HID, GATT protocols.
1.led Indicates Bluetooth connection status, flashing Bluetooth connectivity means no, Always indicate Bluetooth connection and open ports
2.open to the effective distance of 15 meters
3.TXD: Send side, generally expressed as their own sender, normal communication must be connected to another device RXD.
RXD: the receiver, generally designated himself on the receiving end, normal communication TXD must be connected to another device.
When normal communication itself TXD RXD always connected device!