similar to: Using 'dummy.ups' for a real application, not just testing...

Tom via Nut-upsuser <nut-upsuser at alioth-lists.debian.net> writes: >>That makes sense. So you'll have input voltage, output voltage, and >>output current I would guess. You might consider a nodemcu (ESP8266) >>publishing via MQTT to reduce power and use of unobtainium. > > Yes, that is exactly what I was planning to instrument. Maybe battery > voltage too

Ha! I got several on and off list requests for details, so I'll give a bunch of details here and then maybe I can move this to a wiki page others can help edit. WARNING! WARNING! WARNING! Be careful! My implementation required opening up high power components, and dealing with 120VAC mains power and high currents on 12VDC. If you decide to tackle any of this yourself, you need to understand

Looks very great, thanks for writing this! I gather you'd port this to the Wiki page you've started, too? A couple of comments: > So I run a NUT server on a Raspberry PI which is connected via USB to my DIY-NAS Arduino. DIY-UPS? > See drivers/arduino-hid.c for the list of supported IDs... Since NUT v2.8.1 [PR #1369], the `usbhid-ups` driver allows the user to specify a

On 5/16/24 08:59, Jim Klimov via Nut-upsuser wrote: > I agree with earlier posters, such documentation can help future > tinkerers. There is probably more than just one to hold the hand and > walk through the ordeals :) > > Perhaps a new page at https://github.com/networkupstools/nut/wiki > <https://github.com/networkupstools/nut/wiki> can be a good location... >

My $0.02: LB is baked in to nut behavior. So if a UPS doesn't report LB, then it makes sense to synthesize it. Synthetic LB is the cleanest fix at the earlier processing point. One could have a config that is basically synthetic-lowbatt-percent that generates LB if (as Jim says) on battery, not calibrating, and batt% <= that. One could have a similar config

Hi I have just purchased a Cyberpower CP1300EPFCLCD UPS. It is not listed in your Compatibility List http://networkupstools.org/stable-hcl.html I am very new to all this but do have a background in IT. I have been retired for 18 years so am a bit out of touch so please excuse if I am a bit fuzzy. I will try my best to explain my issue below. When I plug my UPS into my Synology NAS

People, A couple of decades before I was retired and was still working for other people I had cause to install UPSs and they usually had RS232 ports to allow the setting up of shutdown scripts to UNIX / Linux servers. Now, after not having to be concerned by those issues for some time - most of my little web sites have been on Digital Ocean or other suppliers VMs for a long time - I am

People, A couple of decades before I was retired and was still working for other people I had cause to install UPSs and they usually had RS232 ports to allow the setting up of shutdown scripts to UNIX / Linux servers. Now, after not having to be concerned by those issues for some time - most of my little web sites have been on Digital Ocean or other suppliers VMs for a long time - I am

I put together my own DIY UPS, it's a RV charger/converter, an inverter, and some batteries. I use an Arduino and the HIDPowerDevice library ( https://github.com/abratchik/HIDPowerDevice) to get it to talk to NUT. Been working great for months! The Arduino is connected to two modules: * AC detection circuit to measure mains power on/off * Voltage divider and an external ADC to get a

On Fri, Mar 28, 2014 at 8:12 AM, Charles Lepple <clepple at gmail.com> wrote: <<Snip>> > > I'll be honest, I haven't really done much with the CGI scripts lately. For debugging values, it is probably better to be closer to the driver. I'd recommend using "upsc" or the driver logs. > > To that end, the .ac.txt and .bat.txt files both show 24.0 V:

Hello Nut List! I have 2 "Lacerda 10KVA" UPS that returns strange values for Q1 and F commands: Q1 (215.0 215.0 219.0 004 60.0 2.27 39.0 00000001 F #220.0 045 240.0 60.0 At least what I know about Megatec, It seems to say that it has a 240.0 V battery with currently 2.27V. Quite strange. I contacted Lacerda to help me interpret this values and they said that 2.27 is just 1 element

Hi Kelly - As an Arduino nerd, I am interested in this! I am sure others on the list would be interested. If nothing else, it would be nice to have some documentation in the archives. I assume you set it up as an online system rather than a standby system. Right? If true, then the choice of inverter is fairly critical. It has to be bomb-proof reliable. What did you choose for battery

On Mar 28, 2014, at 9:08 AM, Bill S wrote: > On Fri, Mar 28, 2014 at 8:12 AM, Charles Lepple <clepple at gmail.com> wrote: > > <<Snip>> >> >> I'll be honest, I haven't really done much with the CGI scripts lately. For debugging values, it is probably better to be closer to the driver. I'd recommend using "upsc" or the driver logs.

Hello Charles, Nice to make your acquaintance. J Thanks for your detailed reply. I appreciate it greatly. I want to learn. I have read and tried to get my head around the information you have provided but as a lot of it is new to me I have some questions. 1. As I am connecting the Cyberpower CP1300ePFCLCD to my Synology NAS DS216+II via USB cable. This makes the NAS a NUT

I agree with earlier posters, such documentation can help future tinkerers. There is probably more than just one to hold the hand and walk through the ordeals :) Perhaps a new page at https://github.com/networkupstools/nut/wiki can be a good location... Jim On Thu, May 16, 2024 at 1:29?PM Bill Gee <bgee at campercaver.net> wrote: > Hi Kelly - > > As an Arduino nerd, I am

Kicking the old tyre a bit once more: In my recent reading I saw "float charge", "float mode", "float voltage" etc. Maybe that is what I meant in the earlier discussion - similar concept, similar word. In case of PbAc per https://chargetek.com/basic-information.html : "Float mode is where the voltage on the battery is maintained at approximately 2.25 volts

Hello, First of all thank you so much for the information. At 22:43 -0400 on 2014-5-15 Charles Lepple wrote: > > On May 15, 2014, at 9:39 PM, Stefan Bruda wrote: > > > What bugs be though is that I cannot seem to be able to read the > > remaining run time on battery. The battery charge is also widely > > inaccurate (it drops to zero really fast and stays

Hello Jeff, `upsstats` by itself only relays and renders the information provided by a NUT data server (upsd) and the NUT driver for the device. So you can revise the specific reported values with e.g. `upsc` command-line client to be sure. What I think happens here is that the driver uses a `battery.voltage.low/nominal/high` group of readings which does not match the hardware circumstances

Slightly OT, but I think this is of possible interest to many of you, I need to get a UPS for my asterisk box. They are rated in VA but I can't quite figure out how that converts to real life. I have a PIII-800 box with two X100P and one TDM400P plus graphics adapter, an IDE hard drive etc. Will a small 400VA box be enough for this? tia

On Oct 31, 2020, at 8:30 PM, Gene Heskett <gheskett at shentel.net> wrote: > >> battery.voltage: 16.0 > At that voltage, 5 of the 12 cells are shorted >> battery.voltage.nominal: 24 The 16.0 is a scaled version of the fixed (bogus) 24.0 V reading, similar to this unit: https://networkupstools.org/ddl/Cyber_Power_Systems/CP1500PFCLCD.html I think we even