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[ 83.890159] usb 2-1: rtl8723bu_parse_efuse: dumping efuse (0x200 bytes):<br>
......<br>
[ 83.890412] usb 2-1: RTL8723BU rev E (SMIC) 1T1R, TX queues 3, WiFi=1, BT=1,<br>GPS=0, HI PA=0<br>
[ 83.890417] usb 2-1: RTL8723BU MAC: 00:13:ef:f4:58:ae<br>
[ 83.890421] usb 2-1: rtl8xxxu: Loading firmware rtlwifi/rtl8723bu_nic.bin <br>
|orangepi@orangepi:~$ '''lsmod'''<br>
<span style="margin-right: 150px;">Module</span><span style="margin-right: 50px;">Size </span><span style="margin-right: 45px;">Used by </span><br>
<span style="margin-right: 150px140px;">8821cu </span><span style="margin-right: 50px;">1839104 </span><span style="margin-right: 50px;">0</span><br>
|}
3) Through the dmesg command, you can see the loading information of the RTL8811 module<br>
{| class="wikitable" style="width:800px;background-color:#ffffdc;"
|-
|orangepi@orangepi:~$ '''lsusb | grep "Realtek"'''<br>
Bus 002 Device 002: ID 0bda:1a2b Realtek Semiconductor Corp. RTL8188GU 802.11n WLAN Adapter '''<span style="color:#0066CC;">(Driver CDROM Mode)</span>'''<br><br>
|orangepi@orangepi:~$ '''lsmod'''<br>
<span style="margin-right: 150px;">Module</span><span style="margin-right: 50px;">Size </span><span style="margin-right: 45px;">Used by </span><br>
<span style="margin-right: 150px140px;">8821cu</span><span style="margin-right: 50px;">1839104 </span><span style="margin-right: 50px;">0</span><br><span style="margin-right: 140px130px;">rtk_btusb </span><span style="margin-right: 50px;">61440 </span><span style="margin-right: 30px;">0</span><br>
|}
4) Through the dmesg command, you can see the loading information of the rtl8821cu module<br>
9) The display after turning on Bluetooth is as follows<br><br>
[[Image:Pi-5-details2-pic06.png]]<br><br>
10) For the test method of Bluetooth, please refer to <span style="color:#0066CC;">[[How to use Bluetooth | the section on Bluetooth usage]]</span>, so I won’t won't go into details here<br><br>