BT485U needs to be used in conjunction with BT485 Bluetooth adapter, they can replace the traditional RS-485 bus within a range of 100 meters, convert RS-485 connection into Bluetooth connection, and thus realize wireless RS-485 communication.
The BT485U is usually plugged into a computer's USB port as a Bluetooth slave, waiting for the BT485 Bluetooth master to initiate a Bluetooth connection. BT485U can be used in pairs with a BT485 Bluetooth master or in network with multiple BT485 masters. A BT485U slave can connect to up to 20 BT485 masters at the same time, and further connect up to 255 RS-485 slave devices through the BT485 masters.



 

• Adapt to RS-485 physical layer, support Modbus RTU and ASCII protocols.
• Simpler and more flexible networking than traditional wired RS-485 connection.
• The default Bluetooth role is slave, and can be set as a Bluetooth master.
• BT485U slave can be connected to up to 20 BT485 Bluetooth masters at the same time.
• Bluetooth pairing encryption can enhance the security of wireless communication.
• Fast and large data transfer ability, the max communication baud rate is up to 921600 bps.
• Serial communication parity check can enhance the compatibility and application of the adapter.
• 10dBm transmitting power, communication distance up to 100 meters in open area.
• Built-in Watchdog, ensure long-term reliable and stable communication.
• An Android app is supplied to set the adapter, no need to sending AT commands.
• TXD and RXD indicator can display the data activity on RS-485 serial port.