the server is currently taking something like 110W to 120W.
I'd like to reduce it a bit more if possible.
One option that occurs to me is to fit a less powerful PSU.
I presume that (in general) models of Supermicro PSUs can be swapped
between chassis. I have two "920W silent" PSUs; ignoring the redundancy, either one of which is clearly overkill for my needs.
I don't know how much of my 120W is wasted by the PSU.
If I were to be
able to find a (say) 500W PSU which would fit etc, any idea of the likely reduction in power consumption this might give me?
Thanks for any thoughts
Jon N
On 22 May 2022 at 21:46:13 BST, "jkn" <jkn...@nicorp.f9.co.uk> wrote:
the server is currently taking something like 110W to 120W.
I'd like to reduce it a bit more if possible.
One option that occurs to me is to fit a less powerful PSU.
I presume that (in general) models of Supermicro PSUs can be swapped between chassis. I have two "920W silent" PSUs; ignoring the redundancy, either one of which is clearly overkill for my needs.
I don't know how much of my 120W is wasted by the PSU.I think this is the bit you'd need to find out - the efficiency of the PSU. If
it's near 100% (unlikely!) then there'd be little point in looking for alternatives, and you'd have to be looking for savings elsewhere.
If I were to be
able to find a (say) 500W PSU which would fit etc, any idea of the likely reduction in power consumption this might give me?
Thanks for any thoughts--
Jon N
Cheers, Rob
jkn wrote:
I don't know how much of my 120W is wasted by the PSU.
I think this is the bit you'd need to find out - the efficiency of the PSU.
RJH wrote:Hi Andy
jkn wrote:
I don't know how much of my 120W is wasted by the PSU.
I think this is the bit you'd need to find out - the efficiency of the PSU.Really rough rule of thumb, if the PSU is providing at least 20% of its maximum
power, then it'll be operating at at least 80% efficiency
So your 2x 920W PSUs are probably quite inefficient supplying 60W each.
On Sunday, May 22, 2022 at 10:41:18 PM UTC+1, Andy Burns wrote:
RJH wrote:Hi Andy
jkn wrote:power, then it'll be operating at at least 80% efficiency
I don't know how much of my 120W is wasted by the PSU.
I think this is the bit you'd need to find out - the efficiency of the PSU. >> Really rough rule of thumb, if the PSU is providing at least 20% of its maximum
So your 2x 920W PSUs are probably quite inefficient supplying 60W each.
I'm only using one of the PSUs. I only mentioned I had two for completeness...
J^n
mostly turn it off and power it up
remotely when I want it then shut it off (or it hits 1am and shuts
itself off).
Annoying, isn't it?
On 23 May 2022 at 00:15:20 BST, "Jaimie Vandenbergh" <jaimie@usually.sessile.org> wrote:
mostly turn it off and power it up
remotely when I want it then shut it off (or it hits 1am and shuts
itself off).
Yup. I've got my NAS to do exactly that. It was using a big proportion of the household electricity - c.10%.
Annoying, isn't it?
Yes. On those occasions when I want to access some music say. Annoying I can't
get an iPhone app to do the wake-on-LAN thing - the desktop one works fine, in
a crude/effective way (Wakeoncommand). Any phone app recommendations?
On 23 May 2022 at 00:00:30 BST, "jkn" <jkn...@nicorp.f9.co.uk> wrote:
On Sunday, May 22, 2022 at 10:41:18 PM UTC+1, Andy Burns wrote:
RJH wrote:Hi Andy
jkn wrote:Really rough rule of thumb, if the PSU is providing at least 20% of its maximum
I don't know how much of my 120W is wasted by the PSU.
I think this is the bit you'd need to find out - the efficiency of the PSU.
power, then it'll be operating at at least 80% efficiency
So your 2x 920W PSUs are probably quite inefficient supplying 60W each.
I'm only using one of the PSUs. I only mentioned I had two for completeness...
J^nI don't know about the Supermicro, but the Dell and HP servers I've
always worked with have one PSU hot and one on standby rather than
splitting it, so there's probably not a lot you can do there -
diminishing returns, you might save 20W as you say but spend £££ on replacement PSUs.
With my Dell R520 NAS, I took one CPU out - 30W better. Then disabled
all but 4 of the CPU cores on the remaining one, disabled
hyperthreading, took out the onboard RAID card, disabled the spare NICs,
and that saved another 20w or so. In the firmware I told it to
prioritise low power usage, got some more there. With four HDDs in, it currently measures 70W at the wall.
Which is okay but still wastefully expensive (each watt over a year =
£2.50 currently so almost £200), so I mostly turn it off and power it up remotely when I want it then shut it off (or it hits 1am and shuts
itself off).
Annoying, isn't it?
Cheers - Jaimie
Hi All
This question might be better in a more dedicated forum. but I know there is
a lot of expertise here...
I have a Supermicro 2U server which I use as an (overkill) home server. It sits in
a metal cabinet in the garage. Jaimie Vandenbergh of this borough kindly helped me with some RAM a also some CPU testing couple of years ago.
I don't know about the Supermicro, but the Dell and HP servers I've
always worked with have one PSU hot and one on standby rather than
splitting it
Jaimie Vandenbergh wrote:
I don't know about the Supermicro, but the Dell and HP servers I've
always worked with have one PSU hot and one on standby rather than
splitting it
Are you sure? Pretty sure HP servers run both power supplies in load-balanced
mode, unless you configure them for high-efficiency mode, when they do place one
in standby.
On 22/05/2022 21:46, jkn wrote:
Hi All
This question might be better in a more dedicated forum. but I know there is
a lot of expertise here...
I have a Supermicro 2U server which I use as an (overkill) home server. It sits in
a metal cabinet in the garage. Jaimie Vandenbergh of this borough kindly
helped me with some RAM a also some CPU testing couple of years ago.
It depends on what you are serving, but for a lot of stuff the Raspberry
Pi 4b is a good enough server and only 2 or 3 watts.
One option that occurs to me is to fit a less powerful PSU.
I presume that (in general) models of Supermicro PSUs can be swapped
between chassis. I have two "920W silent" PSUs; ignoring the redundancy, either one of which is clearly overkill for my needs.
I don't know how much of my 120W is wasted by the PSU. If I were to be
able to find a (say) 500W PSU which would fit etc, any idea of the likely reduction in power consumption this might give me?
I have a Supermicro 2U server which I use as an (overkill) home server. It sits in
a metal cabinet in the garage.
Hi All
This question might be better in a more dedicated forum. but I know there is
a lot of expertise here...
I have a Supermicro 2U server which I use as an (overkill) home server. It sits in
a metal cabinet in the garage. Jaimie Vandenbergh of this borough kindly helped me with some RAM a also some CPU testing couple of years ago.
In these days of high electricity pricing I am looking to ways of reducing its
power consumption. It is always going to be on the high side, and I have taken
some step already, but I'm curious about a couple of further options.
The main steps I have taken from stock are:
- using only one of the redundant PSUs (see blow)
- although it's a 12-bay unit I am only using six of the bays. One of the reasons
I bought the server was to consolidate my collection of hard drives; I hope to
reduce it to five or even four soon
- I run 'ipmitool' to run the fans at a lower speed. This is as much to keep the
noise down as the power consumption.
- I've just recently added disk spindown time via hdparm.
With these steps, the server is currently taking something like 110W to 120W. I'd like to reduce it a bit more if possible.
One option that occurs to me is to fit a less powerful PSU.
I presume that (in general) models of Supermicro PSUs can be swapped
between chassis. I have two "920W silent" PSUs; ignoring the redundancy, either one of which is clearly overkill for my needs.
I don't know how much of my 120W is wasted by the PSU. If I were to be
able to find a (say) 500W PSU which would fit etc, any idea of the likely reduction in power consumption this might give me?
Thanks for any thoughts
I recently revived my old Gen7 microserver which is about 20W, or 40W with
4 HDD spinning. I think any kind of server big iron is not ideal for low power use, just by dint of all the extra stuff on the board.
Laptop/desktop stuff is better.
jkn <jkn...@nicorp.f9.co.uk> wrote:
One option that occurs to me is to fit a less powerful PSU.Hard to know, but I have a Lenovo TS440 server (E5-1225v3) which has dual 450W PSUs. If I plug in only one it'll idle at 40W with a SAS RAID card in it, so probably a bit less without. So it's possible to have a hotswap PSU that isn't thirsty.
I presume that (in general) models of Supermicro PSUs can be swapped between chassis. I have two "920W silent" PSUs; ignoring the redundancy, either one of which is clearly overkill for my needs.
I think a lot of idle power comes from things which are powered and not
doing anything - RAM, PCI cards, drives, motherboard components. I'd go through and try to cut down everything you can.
I recently revived my old Gen7 microserver which is about 20W, or 40W with
4 HDD spinning. I think any kind of server big iron is not ideal for low power use, just by dint of all the extra stuff on the board.
Laptop/desktop stuff is better.
(currently pondering a Ryzen APU as its longer term replacement)
I don't know how much of my 120W is wasted by the PSU. If I were to beMost server PSUs are 12V output only. So you might be able to power it from an external source of 12V with some wiring hackery. Does your server have a hotswap PCB at the back of the PSU where the PSU edge connector is turned into a bundle of ATX-style wires? If the mobo has a standard ATX power connector you could try a smallish desktop PSU and see if that improves things.
able to find a (say) 500W PSU which would fit etc, any idea of the likely reduction in power consumption this might give me?
Something really different - move it into the house.
Yes, the noise may be a problem, but if it's in a habitable space at
least the power helps keep the house warm!
On 23 May 2022 at 07:55:47 BST, "Pancho" <Pancho.Jones@proton.me> wrote:
On 22/05/2022 21:46, jkn wrote:
Hi All
This question might be better in a more dedicated forum. but I know there is
a lot of expertise here...
I have a Supermicro 2U server which I use as an (overkill) home server. It sits in
a metal cabinet in the garage. Jaimie Vandenbergh of this borough kindly >>> helped me with some RAM a also some CPU testing couple of years ago.
It depends on what you are serving, but for a lot of stuff the Raspberry
Pi 4b is a good enough server and only 2 or 3 watts.
Yeah, I've considered that too - feels like a silly solution though. I'd
have to pick what to put on the Pi, and I'd have to script up some
automatic "power up nightly and copy changes to real NAS" mechanism.
Plus Pi's are deeply hard to find just now!
On 23/05/2022 14:47, Jaimie Vandenbergh wrote:
On 23 May 2022 at 07:55:47 BST, "Pancho" <Pancho...@proton.me> wrote:
On 22/05/2022 21:46, jkn wrote:
Hi All
This question might be better in a more dedicated forum. but I know there is
a lot of expertise here...
I have a Supermicro 2U server which I use as an (overkill) home server. It sits in
a metal cabinet in the garage. Jaimie Vandenbergh of this borough kindly >>> helped me with some RAM a also some CPU testing couple of years ago.
It depends on what you are serving, but for a lot of stuff the Raspberry >> Pi 4b is a good enough server and only 2 or 3 watts.
Yeah, I've considered that too - feels like a silly solution though. I'd have to pick what to put on the Pi, and I'd have to script up some automatic "power up nightly and copy changes to real NAS" mechanism.
Dunno, what you mean, have to pick what to put on it? Logitech Media
Server (the software jkn mentions) runs on Debian Arm (i.e. Pi OS or Pi Ubuntu the likely OS choices for a rPi)
You seem to have some unmentioned assumed usecase.
Plus Pi's are deeply hard to find just now!
Yep, they are a little too cheap. An alternative, like a modern (arm
based) NAS seems to start at about 4 times the price, with a slower cpu.
I suspect some people in this group like playing with impressive old hardware, in much the same way old men used to like steam engines when
we were young.
On 23/05/2022 14:47, Jaimie Vandenbergh wrote:
Yeah, I've considered that too - feels like a silly solution though. I'd have to pick what to put on the Pi, and I'd have to script up some automatic "power up nightly and copy changes to real NAS" mechanism.
Dunno, what you mean, have to pick what to put on it? Logitech Media
Server (the software jkn mentions) runs on Debian Arm (i.e. Pi OS or Pi Ubuntu the likely OS choices for a rPi)
You seem to have some unmentioned assumed usecase.
Pancho <Pancho.Jones@proton.me> wrote:
On 23/05/2022 14:47, Jaimie Vandenbergh wrote:
Yeah, I've considered that too - feels like a silly solution though. I'd >>> have to pick what to put on the Pi, and I'd have to script up some
automatic "power up nightly and copy changes to real NAS" mechanism.
Dunno, what you mean, have to pick what to put on it? Logitech Media
Server (the software jkn mentions) runs on Debian Arm (i.e. Pi OS or Pi
Ubuntu the likely OS choices for a rPi)
You seem to have some unmentioned assumed usecase.
The problem is the Pi is not much good when you go multi-drive. Multi-drive is useful because it protects you against single disc failures.
First of all there's no SATA, so you have to use USB drives. And once
you've hung multiple drives off the Pi USB 3, they're still all sharing a single PCIe Gen2 x1 lane so they're limited by bandwidth.
And then the Pi
CPU isn't much cop when you want to run filesystems like ZFS (which is a
very good idea on a NAS), and you can't expand the RAM (ZFS likes its RAM). Plus USB mass storage controllers sometimes aren't the best.
You can work around that to some degree by using a compute module and a proper PCIe HBA card, but at the end of the day that x1 lane and 8GB non-ECC RAM are still a bottleneck. And you probably have to do some DIY kernel building, since the default kernels don't compile drivers for many PCIe cards, which means you start departing from stock OS setups (no out of the box installs). Plus only some HBA cards work, due to limitations in the Pi PCIe controller.
Which is not to say the Pi is bad as a one-disc personal NAS with a USB HDD or SSD, it just isn't in the same league in terms of dependability as even a consumer x86 motherboard is.
On 23/05/2022 14:47, Jaimie Vandenbergh wrote:
On 23 May 2022 at 07:55:47 BST, "Pancho" <Pancho.Jones@proton.me> wrote:
On 22/05/2022 21:46, jkn wrote:
Hi All
This question might be better in a more dedicated forum. but I know there is
a lot of expertise here...
I have a Supermicro 2U server which I use as an (overkill) home server. It sits in
a metal cabinet in the garage. Jaimie Vandenbergh of this borough kindly >>>> helped me with some RAM a also some CPU testing couple of years ago.
It depends on what you are serving, but for a lot of stuff the Raspberry >>> Pi 4b is a good enough server and only 2 or 3 watts.
Yeah, I've considered that too - feels like a silly solution though. I'd
have to pick what to put on the Pi, and I'd have to script up some
automatic "power up nightly and copy changes to real NAS" mechanism.
Dunno, what you mean, have to pick what to put on it? Logitech Media
Server (the software jkn mentions) runs on Debian Arm (i.e. Pi OS or Pi Ubuntu the likely OS choices for a rPi)
Personally I would not want to go for an RPi solution as I want
'proper' power and IO.
I'll admit, the rPi isn't much fun, it sits in a cupboard which I rarely open, it's almost like it is a Google Cloud Compute engine for all the physical attention it gets.
On 2022-05-24, jkn <jkn...@nicorp.f9.co.uk> wrote:
Personally I would not want to go for an RPi solution as I wantGo on, I'll bite - what is 'proper' power and IO for you?
'proper' power and IO.
Hi All
This question might be better in a more dedicated forum. but I know there is
a lot of expertise here...
I have a Supermicro 2U server which I use as an (overkill) home server. It sits in
a metal cabinet in the garage. Jaimie Vandenbergh of this borough kindly helped me with some RAM a also some CPU testing couple of years ago.
In these days of high electricity pricing I am looking to ways of reducing its
power consumption. It is always going to be on the high side, and I have taken
some step already, but I'm curious about a couple of further options.
The main steps I have taken from stock are:
- using only one of the redundant PSUs (see blow)
- although it's a 12-bay unit I am only using six of the bays. One of the reasons
I bought the server was to consolidate my collection of hard drives; I hope to
reduce it to five or even four soon
- I run 'ipmitool' to run the fans at a lower speed. This is as much to keep the
noise down as the power consumption.
- I've just recently added disk spindown time via hdparm.
With these steps, the server is currently taking something like 110W to 120W. I'd like to reduce it a bit more if possible.
One option that occurs to me is to fit a less powerful PSU.
I presume that (in general) models of Supermicro PSUs can be swapped
between chassis. I have two "920W silent" PSUs; ignoring the redundancy, either one of which is clearly overkill for my needs.
I don't know how much of my 120W is wasted by the PSU. If I were to be
able to find a (say) 500W PSU which would fit etc, any idea of the likely reduction in power consumption this might give me?
Thanks for any thoughts
Jon N
On 22/05/2022 21:46, jkn wrote:
Hi All
This question might be better in a more dedicated forum. but I know there is
a lot of expertise here...
I have a Supermicro 2U server which I use as an (overkill) home server. It sits in
a metal cabinet in the garage. Jaimie Vandenbergh of this borough kindly helped me with some RAM a also some CPU testing couple of years ago.
In these days of high electricity pricing I am looking to ways of reducing its
power consumption. It is always going to be on the high side, and I have taken
some step already, but I'm curious about a couple of further options.
The main steps I have taken from stock are:
- using only one of the redundant PSUs (see blow)
- although it's a 12-bay unit I am only using six of the bays. One of the reasons
I bought the server was to consolidate my collection of hard drives; I hope to
reduce it to five or even four soon
- I run 'ipmitool' to run the fans at a lower speed. This is as much to keep the
noise down as the power consumption.
- I've just recently added disk spindown time via hdparm.
With these steps, the server is currently taking something like 110W to 120W.
I'd like to reduce it a bit more if possible.
One option that occurs to me is to fit a less powerful PSU.
I presume that (in general) models of Supermicro PSUs can be swapped between chassis. I have two "920W silent" PSUs; ignoring the redundancy, either one of which is clearly overkill for my needs.
I don't know how much of my 120W is wasted by the PSU. If I were to be
able to find a (say) 500W PSU which would fit etc, any idea of the likely reduction in power consumption this might give me?
Thanks for any thoughtsWhat about putting it to sleep and using wake-on-LAN?
Jon N
- wake-on-lan doesn't seem to be available; in any case I have fitted a dual port Ethernet card to this (ironically, to save power, by not using the on-board
10GB ethernet ports!) and WOL is not available via the port cards
On 28 May 2022 at 18:18:23 BST, "jkn" <jkn_gg@nicorp.f9.co.uk> wrote:
- wake-on-lan doesn't seem to be available; in any case I have fitted a dual >> port Ethernet card to this (ironically, to save power, by not using the on-board
10GB ethernet ports!) and WOL is not available via the port cards
Out of interest, did you measure server power consumption with 10gigE
ports in use but connected to 1gigE switch? Just thinking that may use
less juive overall than using an addin card.
a) automate the use of this to remotely power on and off via the BMC. I am hoping
to be able to script this;
On 28 May 2022 at 18:18:23 BST, "jkn" <jkn...@nicorp.f9.co.uk> wrote:
a) automate the use of this to remotely power on and off via the BMC. I am hopingHave a look at 'ipmitool' which is the usual command line method of
to be able to script this;
talking to BMC/iDrac/etc etc
/usr/local/bin/ipmitool -I lanplus -H {server_ip} -U {username} -P
{password} chassis power on
On 28 May 2022 at 21:22:19 BST, "Jaimie Vandenbergh" <jai...@usually.sessile.org> wrote:
On 28 May 2022 at 18:18:23 BST, "jkn" <jkn...@nicorp.f9.co.uk> wrote:
- wake-on-lan doesn't seem to be available; in any case I have fitted a dual
port Ethernet card to this (ironically, to save power, by not using the on-board
10GB ethernet ports!) and WOL is not available via the port cards
Out of interest, did you measure server power consumption with 10gigE*juice!
ports in use but connected to 1gigE switch? Just thinking that may use
less juive overall than using an addin card.
On Saturday, May 28, 2022 at 9:35:11 PM UTC+1, Jaimie Vandenbergh wrote:
On 28 May 2022 at 21:22:19 BST, "Jaimie Vandenbergh" <jai...@usually.sessile.org> wrote:
On 28 May 2022 at 18:18:23 BST, "jkn" <jkn...@nicorp.f9.co.uk> wrote:
- wake-on-lan doesn't seem to be available; in any case I have fitted a dual
port Ethernet card to this (ironically, to save power, by not using the on-board
10GB ethernet ports!) and WOL is not available via the port cards
Out of interest, did you measure server power consumption with 10gigE ports in use but connected to 1gigE switch? Just thinking that may use less juive overall than using an addin card.*juice!
That's an interesting thought ... now that I have reconnected the BMC port, and can measure power consumption that way, it is probably worth trying.
J^n
Not a very interesting way of saving power, but probably sensible.
The server
seems to take about 15W even on standby, but I guess that will keep my tools dry,
and is a lot better than the 85--90W it draws on full power.
On Saturday, May 28, 2022 at 10:37:42 PM UTC+1, jkn wrote:
On Saturday, May 28, 2022 at 9:35:11 PM UTC+1, Jaimie Vandenbergh wrote:
On 28 May 2022 at 21:22:19 BST, "Jaimie Vandenbergh"That's an interesting thought ... now that I have reconnected the BMC port, >> and can measure power consumption that way, it is probably worth trying.
<jai...@usually.sessile.org> wrote:
On 28 May 2022 at 18:18:23 BST, "jkn" <jkn...@nicorp.f9.co.uk> wrote:*juice!
- wake-on-lan doesn't seem to be available; in any case I have fitted a dual
port Ethernet card to this (ironically, to save power, by not using the >>>>> on-board
10GB ethernet ports!) and WOL is not available via the port cards
Out of interest, did you measure server power consumption with 10gigE
ports in use but connected to 1gigE switch? Just thinking that may use >>>> less juive overall than using an addin card.
J^n
Just to give a general update on this ...
- I have got the management port running with a separate Ethernet cable;
so I can power the server on and off remotely. This also gives me
better visibility of the current consumption
- I have added hdparm.conf spindown settings to save disk power when operating
- I have moved my logitechmediaserver installation to a smaller indoor server (running on a Lenovo USFF unit) which can run 24/7 and not use much power. Ironically I used to run LMS like this, but then moved it the garage for ... complicated reasons
- So I can now only power up the garage server when I need it, and still have LMS
available all the time.
Not a very interesting way of saving power, but probably sensible. The server seems to take about 15W even on standby, but I guess that will keep my tools dry,
and is a lot better than the 85--90W it draws on full power.
The server
seems to take about 15W even on standby, but I guess that will keep my tools dry,
and is a lot better than the 85--90W it draws on full power.
Hmph. Lazy designers. That'd be nearly £40/year here - maybe worth
investing in a smart plug you can power up remotely? Set the server to auto-poweron-with-power.
Cheers - Jaimie
On 6 Jun 2022 at 12:39:28 BST, "jkn" <jkn...@nicorp.f9.co.uk> wrote:
Not a very interesting way of saving power, but probably sensible.Yeah. We've managed to get the house base load down to 150W (it's mostly Internet/wifi/smart stuff - and the fridge and freezer!) through
similarly boring methods. It did bring the power bill down from £220 to £80 though, so good value.
The serverHmph. Lazy designers. That'd be nearly £40/year here - maybe worth investing in a smart plug you can power up remotely? Set the server to auto-poweron-with-power.
seems to take about 15W even on standby, but I guess that will keep my tools dry,
and is a lot better than the 85--90W it draws on full power.
On Monday, June 6, 2022 at 1:30:01 PM UTC+1, Jaimie Vandenbergh wrote:Hmm - most of the "switch mains power via LAN/Ethernet" units that I can find are
On 6 Jun 2022 at 12:39:28 BST, "jkn" <jkn...@nicorp.f9.co.uk> wrote:
Yes, that's a thought ... the wifi doesn't get to the garage, I'd have to findNot a very interesting way of saving power, but probably sensible.Yeah. We've managed to get the house base load down to 150W (it's mostly Internet/wifi/smart stuff - and the fridge and freezer!) through
similarly boring methods. It did bring the power bill down from £220 to £80 though, so good value.
The serverHmph. Lazy designers. That'd be nearly £40/year here - maybe worth investing in a smart plug you can power up remotely? Set the server to auto-poweron-with-power.
seems to take about 15W even on standby, but I guess that will keep my tools dry,
and is a lot better than the 85--90W it draws on full power.
a wired one of some sort. I'm a bit out of touch with what is available, I'll
take a look.
J^n
Hmm - most of the "switch mains power via LAN/Ethernet" units that I can
find are either:
- no longer available
- an unhoused PCB that I would need to case up, and provide a Power Supply
- for very expensive
Any cheaper housed units that people might be able to point me at?
jkn <jkn...@nicorp.f9.co.uk> wrote:Hi Theo
Hmm - most of the "switch mains power via LAN/Ethernet" units that I can find are either:
- no longer available
- an unhoused PCB that I would need to case up, and provide a Power Supply - for very expensive
Any cheaper housed units that people might be able to point me at?Do you need wired? If wifi is OK, these: https://templates.blakadder.com/uk.html
have an ESP8266 inside that can be reflashed with alternative firmware
(eg Tasmota, ESPHome). Tasmota makes them have a web interface on your LAN, or they accept MQTT.
I have a small fleet of these: https://templates.blakadder.com/maxcio_W-UK007S.html
but note that some versions are coming with updated firmware that prevents OTA reflashing.
(making a wifi/zigbee/bluetooth unit is a lot easier as you don't need to worry about isolation between mains and ethernet)
Theo
jkn <jkn...@nicorp.f9.co.uk> wrote:
Hi TheoCould you run a mini access point just for the plugs? Use an old router for the purpose? Doesn't need to be on the same SSID as the rest.
yes, I need wired, it is to the garage and I don't think the Wifi gets that far.
I have a couple of Tasmoto-firmware 'power plugs' I'd use otherwise.
Hi Theo
yes, I need wired, it is to the garage and I don't think the Wifi gets that far.
I have a couple of Tasmoto-firmware 'power plugs' I'd use otherwise.
On Tuesday, June 7, 2022 at 9:24:43 PM UTC+1, Theo wrote:
jkn <jkn...@nicorp.f9.co.uk> wrote:
Hi TheoCould you run a mini access point just for the plugs? Use an old router for the purpose? Doesn't need to be on the same SSID as the rest.
yes, I need wired, it is to the garage and I don't think the Wifi gets that far.
I have a couple of Tasmoto-firmware 'power plugs' I'd use otherwise.
I had thought of that ... but since I am trying to minimise power consumption,
it feels a bit retrograde...
jkn <jkn...@nicorp.f9.co.uk> wrote:
On Tuesday, June 7, 2022 at 9:24:43 PM UTC+1, Theo wrote:
jkn <jkn...@nicorp.f9.co.uk> wrote:
Hi TheoCould you run a mini access point just for the plugs? Use an old router for
yes, I need wired, it is to the garage and I don't think the Wifi gets that far.
I have a couple of Tasmoto-firmware 'power plugs' I'd use otherwise.
the purpose? Doesn't need to be on the same SSID as the rest.
I had thought of that ... but since I am trying to minimise power consumption,https://thepi.io/how-to-use-your-raspberry-pi-as-a-wireless-access-point/
it feels a bit retrograde...
If you have a Pi with wifi, or a Pi with a wifi dongle.
According to this, an old Pi 1 with USB wifi takes about a watt: https://www.pidramble.com/wiki/benchmarks/power-consumption
a Pi 3 with integrated wifi is slightly more.
On Wednesday, June 8, 2022 at 10:52:09 AM UTC+1, Theo wrote:
jkn <jkn...@nicorp.f9.co.uk> wrote:
On Tuesday, June 7, 2022 at 9:24:43 PM UTC+1, Theo wrote:
jkn <jkn...@nicorp.f9.co.uk> wrote:
Hi TheoCould you run a mini access point just for the plugs? Use an old router for
yes, I need wired, it is to the garage and I don't think the Wifi gets that far.
I have a couple of Tasmoto-firmware 'power plugs' I'd use otherwise.
the purpose? Doesn't need to be on the same SSID as the rest.
I had thought of that ... but since I am trying to minimise power consumption,https://thepi.io/how-to-use-your-raspberry-pi-as-a-wireless-access-point/ If you have a Pi with wifi, or a Pi with a wifi dongle.
it feels a bit retrograde...
According to this, an old Pi 1 with USB wifi takes about a watt: https://www.pidramble.com/wiki/benchmarks/power-consumptionHmm...
a Pi 3 with integrated wifi is slightly more.
Slightly annoyingly I gave away an old RPi recently, and brought another spare one back into service for a different purpose. I wonder if I have
any more kicking around...
RPi, wifi, Tasmota ... it's all getting a bit inelegant...
On Wednesday, June 8, 2022 at 4:09:22 PM UTC+1, jkn wrote:
On Wednesday, June 8, 2022 at 10:52:09 AM UTC+1, Theo wrote:
jkn <jkn...@nicorp.f9.co.uk> wrote:
On Tuesday, June 7, 2022 at 9:24:43 PM UTC+1, Theo wrote:
jkn <jkn...@nicorp.f9.co.uk> wrote:
Hi TheoCould you run a mini access point just for the plugs? Use an old router for
yes, I need wired, it is to the garage and I don't think the Wifi gets that far.
I have a couple of Tasmoto-firmware 'power plugs' I'd use otherwise.
the purpose? Doesn't need to be on the same SSID as the rest.
I had thought of that ... but since I am trying to minimise power consumption,https://thepi.io/how-to-use-your-raspberry-pi-as-a-wireless-access-point/ If you have a Pi with wifi, or a Pi with a wifi dongle.
it feels a bit retrograde...
According to this, an old Pi 1 with USB wifi takes about a watt: https://www.pidramble.com/wiki/benchmarks/power-consumptionHmm...
a Pi 3 with integrated wifi is slightly more.
Slightly annoyingly I gave away an old RPi recently, and brought another spare one back into service for a different purpose. I wonder if I have
any more kicking around...
RPi, wifi, Tasmota ... it's all getting a bit inelegant...I have located a 'spare' Beaglebone black in my drawer, and am thinking of hooking it up to a mains relay board like this:
https://www.ebay.co.uk/itm/401755283935
On Wednesday, June 8, 2022 at 6:00:03 PM UTC+1, jkn wrote:
On Wednesday, June 8, 2022 at 4:09:22 PM UTC+1, jkn wrote:
On Wednesday, June 8, 2022 at 10:52:09 AM UTC+1, Theo wrote:
jkn <jkn...@nicorp.f9.co.uk> wrote:
On Tuesday, June 7, 2022 at 9:24:43 PM UTC+1, Theo wrote:
jkn <jkn...@nicorp.f9.co.uk> wrote:
Hi TheoCould you run a mini access point just for the plugs? Use an old router for
yes, I need wired, it is to the garage and I don't think the Wifi gets that far.
I have a couple of Tasmoto-firmware 'power plugs' I'd use otherwise.
the purpose? Doesn't need to be on the same SSID as the rest.
I had thought of that ... but since I am trying to minimise power consumption,https://thepi.io/how-to-use-your-raspberry-pi-as-a-wireless-access-point/
it feels a bit retrograde...
If you have a Pi with wifi, or a Pi with a wifi dongle.
According to this, an old Pi 1 with USB wifi takes about a watt: https://www.pidramble.com/wiki/benchmarks/power-consumptionHmm...
a Pi 3 with integrated wifi is slightly more.
Slightly annoyingly I gave away an old RPi recently, and brought another spare one back into service for a different purpose. I wonder if I have any more kicking around...
RPi, wifi, Tasmota ... it's all getting a bit inelegant...I have located a 'spare' Beaglebone black in my drawer, and am thinking of hooking it up to a mains relay board like this:
https://www.ebay.co.uk/itm/401755283935Hmm - also just realised that I could move one of my Lenovo USFF units
in the garage... and perhaps use that to power on the big server as well.
So - either see if wifi will work between that and an Tasmota plug, both *inside* a metal cabinet... (I doubt it) ...
or ... I wonder if there are any USB controlled Mains relay units?
| Sysop: | Keyop |
|---|---|
| Location: | Huddersfield, West Yorkshire, UK |
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