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Raspberry Pi 3b how to disable WiFi and Bluetooth

由于不用和别的WiFi AP干扰,所以需要把WiFi和Bluetooth关掉。

参考文献:
http://www.pi-resource.com/?page_id=582

1 Check the WiFi status (On status)
command: iwconfig

pi@raspberrypi:~ $ iwconfig
eth0      no wireless extensions.

lo        no wireless extensions.

wlan0     IEEE 802.11  ESSID:off/any
          Mode:Managed  Access Point: Not-Associated
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:on

pi@raspberrypi:~ $



2. Check the Bluetooth status (On status)
command: sudo service bluetooth status

pi@raspberrypi:~ $ sudo service bluetooth status
? bluetooth.service - Bluetooth service
   Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
   Active: active (running) since Thu 2017-11-23 15:21:24 HKT; 9min ago
     Docs: man:bluetoothd(8)
Main PID: 469 (bluetoothd)
   Status: "Running"
   CGroup: /system.slice/bluetooth.service
           +-469 /usr/lib/bluetooth/bluetoothd

Nov 23 15:21:24 raspberrypi systemd[1]: Starting Bluetooth service...
Nov 23 15:21:24 raspberrypi bluetoothd[469]: Bluetooth daemon 5.43
Nov 23 15:21:24 raspberrypi systemd[1]: Started Bluetooth service.
Nov 23 15:21:24 raspberrypi bluetoothd[469]: Starting SDP server
Nov 23 15:21:24 raspberrypi bluetoothd[469]: Bluetooth management interface 1.14 initialized


3. edit /boot/config.txt and put the following lines at the end of the file

#turn off WiFi and Bluetooth off
dtoverlay=pi3-disable-wifi
dtoverlay=pi3-disable-bt

If you want to enable them again, just comment the the last lines.

reboot the device

4. Check the WiFi status (OFF status)

command: iwconfig

root@raspberrypi:/home/pi# iwconfig
eth0      no wireless extensions.

lo        no wireless extensions.

root@raspberrypi:/home/pi#


5. Check the Bluetooth status (OFF status)

command: sudo service bluetooth status

pi@raspberrypi:~ $ sudo service bluetooth status
? bluetooth.service - Bluetooth service
   Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset
   Active: inactive (dead)
     Docs: man:bluetoothd(8)
pi@raspberrypi:~ $

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