BT740 Development Kit
Quick Start Guide
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7
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A transparent UART communication is established between these 2 COM ports. DCD LED indicates SPP
connection is established (
Figure 17
).
Figure 17: DCD LED indicator
Drop Connection
To drop the connection, issue the “^^^” command to switch to Connected mode. The BT740 responds with
OK to indicate the switch is successful and then issues “ATH” to drop the SPP connection (
Figure 18
).
Figure 18: Drop connection command
Note that “^^^” is also treated as data and is transmitted to another module (
Figure 19
).
Figure 19: ^^^ transmitted as data
