Disable Pi4 functions for Pihole dns

[englischdude]

Hi all.

As my kids are becoming more active in the www i have setup a pi4 with the latest buster lite running pihole to block various sites. Works like a charm. The pi4 is connected via ethernet and pihole has activated dhcp.
I only communicate with the pi via ssh.

Question: can i disable components (ie BT Wifi) in order to reduce load and temperature? I dont need fancy graphics, hdmi, wifi ,bluetooth or even usb! In its case with passive cooling it runs at about 58 degrees. I would like to reduce this if possible without using a fan.

Thanks for your feedback and suggestions.

[neilgl]

As it is Buster lite, you won’t have any fancy graphics etc. Maybe get a flirc case or similar (no fan)

[trejan]

Question: can i disable components (ie BT Wifi) in order to reduce load and temperature?

Add the following to config.txt

Code: Select all

dtoverlay=pi-disable-wifi
dtoverlay=pi-disable-bt

In its case with passive cooling it runs at about 58 degrees. I would like to reduce this if possible without using a fan.

Make sure it is up to date as the latest firmware drops temperatures by a noticeable amount.

If you still want to reduce temperature then get a Flirc case or a "Armor Case". Make sure both of them say that they're compatible with the Pi 4 as there are older versions of both cases that aren't compatible due to the USB <-> Ethernet port swap.

[englischdude]

many thanks for the responses.