This how to helps you to learn how to permanently Deactivate WiFi of Raspberry Pi. This can be done by a simple edit of the right file.
Deactivate WiFi of Raspberry Pi
Index Of How To Deactivate WiFi of Raspberry Pi
Background
Whilst I do not know why you like to permanently deactivate the WiFi on Raspberry Pi, there are 5 reasons that come to mind that could make you think to turn WiFi off:
- Power Conservation: Wi-Fi consumes additional power, which can be a concern in battery-powered or energy-efficient projects. By disabling Wi-Fi, you save energy and extend your Raspberry Pi’s battery life.
- Security Considerations: In security-sensitive projects or environments where Wi-Fi connectivity poses a potential risk, disabling Wi-Fi minimizes attack vectors. Air-gapped systems or projects with strict security requirements benefit from this approach.
- Streamlined Network Setup: If your Raspberry Pi is always connected via Ethernet, Wi-Fi becomes unnecessary. Disabling it simplifies your network configuration and ensures consistent connectivity through the wired connection.
- Resource Optimization: Although the Wi-Fi module doesn’t consume significant memory or CPU time, it still uses system resources. If you’re not actively using Wi-Fi, disabling it frees up these resources for other tasks.
- Avoiding Interference: In scenarios where Wi-Fi interference affects performance (such as crowded environments or overlapping networks), disabling Wi-Fi ensures a stable and interference-free connection via Ethernet.
Permanently Deactivate WiFi of Raspberry Pi
- Login into your Raspberry Pi by leveraging SSH. Once done, fire the below command:
vi /boot/config.txt
Within this file, add at the end into the section of [all] the below line:dtoverlay=disable-wifi
- Reboot the system by
sudo reboot
- Check if it worked by entering:
ifconfig -a
You should find now now wifi anymore. The wifi interface is typically called “wlan0″ or similar. Instead it should look like the below:eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.XXX.XXX netmask 255.255.255.0 broadcast 192.168.XXX.XXX inet6 fe80::XXXX:XXXX:XXXX:XXXX prefixlen 64 scopeid 0x20<link> ether b8:27:XX:XX:XX:XX txqueuelen 1000 (Ethernet) RX packets 125 bytes 20904 (20.4 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 73 bytes 12890 (12.5 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 1000 (Local Loopback) RX packets 10 bytes 1618 (1.5 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 10 bytes 1618 (1.5 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
Additional Information
To also deactivate Bluetooth, do exactly the same like in the above, but add additionally in /boot/config.txt the following line at the end:
dtoverlay=disable-bt
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