Can the thing measure power input voltage?

[Ilya Basin]

Hi.

After 2 years uptime it disconnected from wifi and was unable to reconnect even after reboot.

I suspect my AC adapter has degraded. Can this SBC measure the voltage?

Upd: saw this post: https://raspberrypi.stackexchange.com/questions/112122/wifi-not-connecting-depending-on-power-supply

 

I use NetworkManager and when it starts it usually cannot connect to wifi saying that the pre-shared key is wrong, marking the connection as failed and not re-trying. In particular, the log contained a failed "asking for new key" message.

Re-starting the service or manually activating the connection worked.

As a workaround I created a *.conf file in /etc/NetworkManager/conf.d/ :

 

[main]
autoconnect-retries-default=0

 

Not sure if it helped though. One boot had a different error and a re-try. The other boot suddenly connected with the 1st attempt.

Edited January 14, 2023 by Ilya Basin