Raspberry Wifi-Bt

Kui Pi kaabliotsas siis milleks resursi raiskamine Keera wifi ja bluethoot kinni:
https://blog.sleeplessbeastie.eu/2018/12/31/how-to-disable-onboard-wifi-and-bluetooth-on-raspberry-pi-3/ 
echo "dtoverlay=pi3-disable-wifi" | sudo tee -a /boot/config.txt
echo "dtoverlay=pi3-disable-bt" | sudo tee -a /boot/config.txt
# või lisa käsitsi read faili /boot/config.txt lõppu.
keela bt service:
sudo systemctl disable hciuart
sudo reboot

ja vice versa ...