Raspberry pi 4 hotspot 2.4GHz, not 5Ghz.

opencardev / crankshaft

Crankshaft: A turnkey GNU/Linux solution that transforms a Raspberry Pi to an Android Auto head unit.

http://getcrankshaft.com

GNU General Public License v3.0

2.13k stars 256 forks source link

Raspberry pi 4 hotspot 2.4GHz, not 5Ghz. #439

Open egisz opened 3 years ago

egisz commented 3 years ago

I noticed that while in hotspot mode, crankshaft uses 2.4GHz mode, not 5GHz as it is recommended for better stability and quality. I digged a bit and managed to fix it editing file /etc/hostapd/hostapd.conf: Changed lines:

hw_mode=a
channel=40

It would be nice to autodetect that CS is running on RPI 3B+/4 and set these settings during install. I remember we have revision detection in QT5 build scripts. But it's also possible to check supported frequencies with command: iw list

matt2005 commented 3 years ago

Yeah that's sounds good, I'll have a look at making a 2.4/5 option in gui and disable 5 from being selected if not supported. Just waiting for pi4 to arrive.