HA - HomeSeer - connecting to an UPS via NUT

It is very useful to have the hub (HomeSeer in this case) connected to an UPS.

Small blackout will not disrupt the normal working and in case of long blackout will be possible to safely shut down the system.

Plus will be possible to create events to inform about an outtage, like sending an email.

Here some notes to connect my HomeSeer HS4 running on a Raspberry Pi to a CyberPower SL700U UPS.

Physical connection

First of all of course, install the UPS and connect the power of the HomeSeer to it, then connect the USB cable from the UPS to a free USB port of the Raspberry.

HomeSeer HS4 does not have a native UPS manager, the Pi acts as a bridge.

Then few things to do :

• login to the server console
• install 'nut' : sudo apt install nut

After restart the system, issuing a lsusb should show the UPS.
In my case :

homeseer@HTPiHubG3v2:~$ lsusb

Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Bus 001 Device 109: ID 0764:0501 Cyber Power System, Inc. CP1500 AVR UPS

Bus 001 Device 002: ID 1a40:0101 Terminus Technology Inc. Hub

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

homeseer@HTPiHubG3v2:~$

Nut configuration

Is time to configure nut.
To do so, two files need to be edited :

• ups.conf
• nut.conf

From the server console edit the file ups.conf : sudo nano /etc/nut/ups.conf

Add this paragraph to the file (I'm using the data read from lsusb) :

[cyberpower]

    driver = usbhid-ups

    port = auto

    desc = "CyberPower CP1500 AVR UPS"

    vendorid = 0764

    productid = 0501

    pollinterval = 2

Save the file, then edit the nut.conf :  sudo nano /etc/nut/nut.conf

Add, or modify if exist, the line :

MODE=standalone

Save the file.

Time to restart the server nut :

sudo systemctl restart nut-server

If everything was set correctly, is now possible to read the UPS info : sudo upsc cyberpower@localhost

homeseer@HTPiHubG3v2:~$ sudo upsc cyberpower@localhost

Init SSL without certificate database

battery.charge: 100

battery.charge.low: 10

battery.charge.warning: 20

battery.mfr.date: CPS

battery.runtime: 8202

battery.runtime.low: 300

battery.type: PbAcid

battery.voltage: 13.7

battery.voltage.nominal: 12

device.mfr: CPS

device.model: ST Series

device.type: ups

driver.name: usbhid-ups

driver.parameter.pollfreq: 30

driver.parameter.pollinterval: 2

driver.parameter.port: auto

driver.parameter.productid: 0501

driver.parameter.synchronous: no

driver.parameter.vendorid: 0764

driver.version: 2.7.4

driver.version.data: CyberPower HID 0.4

driver.version.internal: 0.41

input.transfer.high: 140

input.transfer.low: 96

input.voltage: 121.0

input.voltage.nominal: 0

output.voltage: 121.0

ups.beeper.status: enabled

ups.delay.shutdown: 20

ups.delay.start: 30

ups.load: 0

ups.mfr: CPS

ups.model: ST Series

ups.productid: 0501

ups.realpower.nominal: 375

ups.status: OL

ups.timer.shutdown: -60

ups.timer.start: -60

ups.vendorid: 0764

homeseer@HTPiHubG3v2:~$ 

Connect the Nut server to HomeSeer

TBD - for now using APCUPSD