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DX-BT18 serial port Bluetooth module dual mode SPP2.0 + BLE4.0 transparent compatible HC-05 06 slave mode
Bluetooth protocol: Bluetooth 4.2BR/EDR+BLE+2.4GHZ-Proprietary
Working frequency: 2.4GHZ ISM Band
Communication interface: UART
Power supply: MIN: 1.8V MAX: 3.6V (3.3v recommended)
Communication distance: 30-40M (open environment)
Pairing code: 1234 (effective for SPP agreement)
Serial port parameters: 9600.8 data bits. 1 stop bit, invalid test, no flow control