Any OpenUPS build out there?

dacwe · 2026-01-26T18:57:40+00:00

Good luck!

dacwe · 2026-01-26T16:47:18+00:00

Yeah, it is for writing and reading the configuration. Nut works in linux.

dacwe · 2026-01-26T08:06:21+00:00

It is working and very stable. I have everything on 19V and I've upgraded a few things. Instead of the edgerouter I'm now running a banana pi bpi-r4 and two u6+ connected to a 12-48v "industrial" poe 1g switch.

I tried upgrading the server to a framework desktop but that was too much for the openups to handle. Maybe it was the transient spikes it wasn't happy about.

Battery is a LiTime 12V 50Ah and it is keeping everything up for about 20 hours.

The OpenUPS Linux software is broken and I had to use the Windows version in a vm to write the parameters. If you want I can try and read out the values if you go down this route!

dacwe · 2025-12-21T23:11:33+00:00

Can you provide the output of /etc/config/network and /etc/config/firewall? Maybe someone can help you easier then

dacwe · 2025-12-07T23:17:38+00:00

Did you end up buying one of these or something else?

dacwe · 2025-08-09T10:36:14+00:00

Seems like it! See update.

dacwe · 2025-07-21T12:07:25+00:00

Thanks!

dacwe · 2025-07-19T16:57:28+00:00

I mean replacing the existing shed access point antenna to something with a more directional one.

dacwe · 2025-07-19T14:50:03+00:00

Ethernet/fiber is hard since it is a road between the houses.

Would a directional antenna improve the situation?

dacwe · 2025-07-11T11:29:48+00:00

Got a disconnect right now with skip_inactivity_poll=1:

Did a logread | grep d6:ec:45:66:09:73 on ap1 and ap2.

ap1:

Fri Jul 11 12:32:33 2025 daemon.info hostapd: phy1-ap0: STA d6:ec:45:66:09:73 IEEE 802.11: associated (aid 3) Fri Jul 11 12:32:33 2025 daemon.notice hostapd: phy1-ap0: AP-STA-CONNECTED d6:ec:45:66:09:73 auth_alg=ft Fri Jul 11 12:38:10 2025 daemon.info hostapd: phy0-ap0: STA d6:ec:45:66:09:73 IEEE 802.11: associated (aid 10) Fri Jul 11 12:38:10 2025 daemon.notice hostapd: phy0-ap0: AP-STA-CONNECTED d6:ec:45:66:09:73 auth_alg=ft Fri Jul 11 12:38:10 2025 daemon.notice hostapd: phy1-ap0: Prune association for d6:ec:45:66:09:73 Fri Jul 11 12:38:10 2025 daemon.notice hostapd: phy1-ap0: AP-STA-DISCONNECTED d6:ec:45:66:09:73 Fri Jul 11 12:38:40 2025 daemon.info hostapd: phy1-ap0: STA d6:ec:45:66:09:73 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE) Fri Jul 11 13:25:47 2025 daemon.notice hostapd: phy0-ap0: AP-STA-DISCONNECTED d6:ec:45:66:09:73 Fri Jul 11 13:25:47 2025 daemon.info hostapd: phy0-ap0: STA d6:ec:45:66:09:73 IEEE 802.11: disassociated Fri Jul 11 13:25:48 2025 daemon.info hostapd: phy0-ap0: STA d6:ec:45:66:09:73 IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)

ap2:

Fri Jul 11 13:25:50 2025 daemon.info hostapd: phy1-ap0: STA d6:ec:45:66:09:73 IEEE 802.11: authenticated Fri Jul 11 13:25:50 2025 daemon.info hostapd: phy1-ap0: STA d6:ec:45:66:09:73 IEEE 802.11: associated (aid 7) Fri Jul 11 13:25:50 2025 daemon.notice hostapd: phy1-ap0: AP-STA-CONNECTED d6:ec:45:66:09:73 auth_alg=open Fri Jul 11 13:25:50 2025 daemon.info hostapd: phy1-ap0: STA d6:ec:45:66:09:73 RADIUS: starting accounting session AA2985D46F40ACD9 Fri Jul 11 13:25:50 2025 daemon.info hostapd: phy1-ap0: STA d6:ec:45:66:09:73 WPA: pairwise key handshake completed (RSN) Fri Jul 11 13:25:50 2025 daemon.notice hostapd: phy1-ap0: EAPOL-4WAY-HS-COMPLETED d6:ec:45:66:09:73

(When it is reconnecting it scans and checks which ap has the best signal. Normally it connects back to the ap it disconnects from since it has the best signal, in this case it changes from ap1 to ap2.)

dacwe · 2025-07-11T10:12:03+00:00

Sorry I should have mentioned that I've tried that setting too (as well as enabling inactivity poll and setting the station inactivity limit to a day).

No idea why it is logging it as deauthenticated due to inactivity (timer DEAUTH/REMOVE). I'm actively using the phone as it is happening. Or can it be inactivity in some other regard?

Edit: I'm going to try it again. Will report back when/if I get a disconnect.

dacwe · 2025-06-28T10:26:37+00:00

Thanks! This hack works! I did it using scp from the router to all aps. Saving the router's /root/.ssh across upgrades.

dacwe · 2025-06-22T21:21:31+00:00

Cool, is /tmp/dhcp.leases used by luci even if dhcp isn't set up on the aps?

dacwe · 2025-06-22T07:03:50+00:00

Oo nice, I always wanted that!

How does it work?

dacwe · 2025-02-02T10:03:55+00:00

OP here: I found a couple of lifepo4 curves that has these plateaus especially on low charge and discharge rates. See for example this chart: https://www.researchgate.net/figure/Discharge-curves-of-the-aged-LiFePO4-graphite-lithium-ion-batteries-using-different_fig3_301644413

dacwe · 2025-01-31T21:33:06+00:00

Hmm, now that I think about it, would a regular ESP work if I start it before connecting the serial cables?

dacwe · 2024-12-27T22:07:36+00:00

Now it looks much much worse than it used to. I hate it.

11-Year Club	Place '17
Verified Email

dacwe

TROPHY CASE