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<li><p>After entering the system, you can first check whether there is a Bluetooth device node through the '''hciconfig''' command. If it exists, it means that the Bluetooth initialization is normal.</p>
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<p>orangepi@orangepi:~$ '''sudo apt update && sudo apt install -y bluez'''</p>
<p>orangepi@orangepi:~$ '''hciconfig -a'''</p>
<p>hci0: Type: Primary Bus: UART</p>
:<p>BD Address: 3E:61:3D:19:0E:52 ACL MTU: 1021:8 SCO MTU: 240:3</p>:<p>UP RUNNING</p>:<p>RX bytes:925 acl:0 sco:0 events:72 errors:0</p>:<p>TX bytes:5498 acl:0 sco:0 commands:72 errors:0</p>:<p>Features: 0xbf 0xff 0x8d 0xfe 0xdb 0x3d 0x7b 0xc7</p>:<p>Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3</p>:<p>Link policy: RSWITCH SNIFF</p>:<p>Link mode: SLAVE ACCEPT</p>:<p>Name: 'orangepi'</p>:<p>Class: 0x3c0000</p>:<p>Service Classes: Rendering, Capturing, Object Transfer, Audio</p>:<p>Device Class: Miscellaneous,</p>:<p>HCI Version: 5.0 (0x9) Revision: 0x400</p>:<p>LMP Version: 5.0 (0x9) Subversion: 0x400</p>:<p>Manufacturer: Spreadtrum Communications Shanghai Ltd (492)</p>|}</li>
<li><p>Use '''bluetoothctl''' to scan for Bluetooth devices</p>
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<p>orangepi@orangepi:~$ '''sudo bluetoothctl'''</p>
<p>[NEW] Controller 10:11:12:13:14:15 orangepizero2w [default]</p>
<p>Discovery stopped</p>
<p>[CHG] Controller 10:11:12:13:14:15 Discovering: no</p>
<p>[CHG] Device DC:72:9B:4C:F4:CF RSSI is nil</p>|}</li>
<li><p>After scanning the device you want to pair, you can pair it. For pairing, you need to use the MAC address of the device.</p>
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<p>[bluetooth]# '''pair DC:72:9B:4C:F4:CF''' '''#Pair using the MAC address of the scanned Bluetooth device'''</p>
<p>Attempting to pair with DC:72:9B:4C:F4:CF</p>
<p>'''Pairing successful #Prompt pairing successful'''</p>
<p>[CHG] Device DC:72:9B:4C:F4:CF ServicesResolved: no</p>
<p>[CHG] Device DC:72:9B:4C:F4:CF Connected: no</p>|}</li>
<li><p>After successful pairing, the Bluetooth interface of the mobile phone will appear as follows:</p>
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</div></li>
<li><p>To connect to a Bluetooth device, you need to install the '''pulseaudio-module-bluetooth''' software package, and then start the '''pulseaudio''' service</p>
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<p>orangepi@orangepi:~$ '''sudo apt update'''</p>
<p>orangepi@orangepi:~$ '''sudo''' '''apt -y install pulseaudio-module-bluetooth'''</p>
<p>orangepi@orangepi:~$ '''pulseaudio --start'''</p>|}</li>
<li><p>How to connect Bluetooth devices</p>
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<p>orangepi@orangepi:~$ '''sudo bluetoothctl'''</p>
<p>Agent registered</p>
<p>[CHG] Device DC:72:9B:4C:F4:CF ServicesResolved: yes</p>
<p>[CHG] Controller 10:11:12:13:14:15 Discoverable: no</p>
<p>'''[orangepi]# #If this prompt appears, the connection is successful.'''</p>|}</li>
<li><p>After connecting the Bluetooth device, you can see the prompt that the audio for calls and media has been '''connected in the Bluetooth configuration interface of the Android phone'''.</p>
<div class="figure">
<span id="usb-interface-test"></span>
== USB interface test ==
