Sir, I connect spm-4 relay to air conditioner, but when I turn on the air cond, after 2-3 minutes it always triggered off by OPS (based on logs info).. It happens randomly to all air cond.. Can you help me what's happened ? FYI, this happened either OPS off (default) or on (configured). Thanks for your kindly help
Cannot find many video on this unit on youtube. I used this for controller my Solar power with battery backup. When detected the grid is off, on battery power, I have automation that shut off all the channels power of this unit so only the critical load like router, lights will stay on so the battery will last all night. The power monitoring are a plus. They have similar item call SPAN Panel but it cost $6000 USD. Good video.
@@notenoughtech Have you try to integrate with Home Assistant using Sonoff built-in? I not able to show the status correctly in the Home Assistant. It turn on okay but the button flip off in the home assistant. Any video or fix for that?
This device is very handy to develop a system for your solar array. For example if there is extra production of electricity, between 2 values, more than A and less than B, heat the water in the boiler with an electric resistor, even a tree phase one. If the solar array produces more than B bul less than C, also start charging the electric car, even using a 3 phase charger. If you have extra power, more than C but less than D, you can also start a pump to fill your water reservoire from a well pump. If your solar array produces more than D push those electrons into the network for credits. How much would such a system cost and how much would you have to pay someone to do it. Quite a lot. With this sonoff device and 3 extensions, you can do it yourself very cheaply
This is exactly my question, how can you make it do that? I have my main unit supplied with a total of 5.5 KW (220 V x 25 Amps), and I use 10 Amps (2.2 KW) on the 1st relay for the water heaters and 15 Amps (3.3 KW) for the rest of the house on the 2nd relay. I would like to create an "if then" statement that does the following function: IF (power consumption >= 3.2 KW on relay 2) THEN (Turn off relay 1: the water heaters) . This is not feasible with the ewelink app, if there a way to do it in the DIY mode?
They will need to resolve the loss of pairing when cables are disconnected if they want these to be used in large scale setups. Pointless if the whole system needs to be setup again whenever a new device is added or a faulty relay unit replaced
I agree that was a bit annoying. It only applies to when system is disconnected while powered up. If you power both units down, then unplug and plug back in before you connect the power then you are good to go
What power the 5v relays on each or the slave units? I did not connect any of the slave to input power and all the channels relay still clicks/working. So where does the relays on the slave get power from? If from the main unit via Serial Cable, how many slave units can it power the relays?
If you lookat 5:43 the relay board has a small power supply on it - this is how each unit gets enough power to drive relays and relay 485 signal to the next unit without issues
good afternoon. have you tried connecting a third-party controller to it? according to rs485. does he have the ability to find out the addresses of registers?
for our new house to be built with electric underfloor heating where the various rooms can be controlled smartly. but which thermostats can I use to control both room temperature and floor temperature?
Personally I'd use 2 of them for greater control but if you come across something that supports both channels that would be good. Alternatively if you just hook up relays instead you can take a look at my DIY smart heating article this would support as many heat sources as you want
I have my main unit supplied with a total of 5.5 KW (220 V x 25 Amps), and I use 10 Amps (2.2 KW) on the 1st relay for the water heaters and 15 Amps (3.3 KW) for the rest of the house on the 2nd relay. I would like to create an "if then" statement that does the following function: IF (power consumption >= 3.2 KW on relay 2) THEN (Turn off relay 1: the water heaters) . This is not feasible with the ewelink app, if there a way to do it in the DIY mode?
Thanks for the vid, I just need one simple way to connect a sonoff to the fuse box so it can tell me the total KWh consumption every day. Is there any way? thanks.
Did you ever find power-on state setting or perhaps know if it is supported for these devices? I am finding the relay unit defaults to power off when the utility supply returns. A bit of a problem in a large deployment application if you have to keep going back into the app to turn each channel on each time the utility / supply power goes off and returns.
I haven't seen it last time I checked. but if I;m honest its been a while since the last update as the unit is big and I have no particular use for it at my house
@@ChristianCastaldi I have not yet found a way to do this. I ordered myself a device to flash Tasmota to the SPM and try the developer mode, but I’m yet to accomplish this. I did receive the following response from another forum when I asked if power state mode was possible: “Yeah, please makre sure the firmware of SPM smart stackable power meter(main unit and 4-relays) is upgraded to the latest version 1.2.0 and eWeLink app is upgaded to 4.23.0”. However the firmware at the time was not yet available to download for my region. I need to check again if it perhaps is as power state mode control without having to go developer mode would be a lot easier. I am wanting to roll this out to over 250 power supply points so if I can’t get this to work then it’s not viable for me either.
Hello, do you know if the relay is 2pole or 1pole switched? I meant the N1 and L1 disconnect when power off the relay or N1 always connected only L1 is disconnected when power off (1pole)?
@@notenoughtech nobody know the answer, sonoff support doesn't reply. I did some measurements, and there is some weird voltage on IN2, IN2 and IN4, when the input phase is connected to IN1. I don't have a proper tool to check, but the simple voltmeter was showing jumping voltages around 70V with 230V input... My guess is some leftover voltages coming in between inputs. Also - when there's only IN4 connected, the device doesn't work. The IN1 must be powered for anything to work.
@@notenoughtech Hmmm, there's no such thing as a "separate neutral" - in regular home circuit design, the neutral wire is shared and connected together. I already returned the device, so I cannot do any tests at this point. I went with Zame MEW-01 instead (which comes without switching, but I don't really need it)
I haven't seen any inductive rating on these so can't really answer this for you. In theory if your inrush current stays within the max current limit then yes
Hi, I have a few clients interested in using this in student accomidation, where they have installed solar but they can't figure out where all the power is been used. There is also load reduction process coming from our electrical supplier in RSA. Instead of turning entire area's off they will have load restrictions in areas if you exceed the usage during these periods you will be cut off. This device would be a nice way to control usage during these times. Have you looked at installing Tasmota on this unit yet?
want to send mqtt information from the device.. there are reasons this can be useful. We have a few scenario's where we manage IOT devices from our cloud system. ... I have a few device here will continue to see if I can get Tasmota one. Thanks again for your video's I find them really good.
I'm not sure how tasmota handles the rs485. Not sure if this protocol is supported so you'll have to check that before flashing. Other than that it should be pretty straight forward
Thanks for the video. So they don't replace the circuit breakers I already have so then I'll connect these circuits in series with the existing ones, correct? Another question I have is about connecting a circuit with two phases on it, how would that work? In Mexico we have 127V, 1 phase and N for most circuits in a home but also use 220V, 2 phase for AC units. How would that be connrcted and controlled? I imagine I would have to use two slots per AC unit in this case but they would have independent controls. Any suggestions or thoughts?
I'm not the best person to advise on multi phase setups if I'm honest. Things are done slightly differently here so I only had to deal with a one phase of 240v But in general yes you want them to be in line with your breakers
I bought the product but it doesn't work with voice commands. It's a shame because I didn't expect that and other sites say it works with Alexa and Google Home as you mention in the video. I tried to connect it but couldn't. Neither Alexa nor Google Home can see the device.
is this the only wired solution with sonoff dyi available right? Im building a new house and would like to automate around 60 lamps/doors/etc is this overkill for it?
It depends on how you want to resolve it. If I was doing it all from a scratch a relay board with a single controller would be a way I'd pick. This has lots of advantages but require you to run your wiring in a slightly different way if you are after individual socket control etc
@@notenoughtech thanks, yeah I would build the house to support it. Maybe the 4ch from sonoff can do it, still only wifi and don't have the dyi natively right? :(
We are planning to deploy this in our resort to monitor and control electrical usage. I have been running a test unit for a few days with a lamp connected to a channel, but I see that it does not keep more than about 1 day's worth of kw/h data without an SD card. I am assuming that an SD card would solve this as advertised on SONOFF? Have you perhaps tested this? I am only asking because I am waiting for an SD to be delivered to test. Regards Jason
@@notenoughtech thank you for checking with your contact. I’ll do some more live testing. I ran it for a few days without an SD card but could not retrieve any historical data of the prior day’s consumption.
I can think of uses for 20Amp relays, but I am not sure of the need of a "control" unit. Why not just have each module controlled like other devices in the range?. I guess if you need a lot and run out of IP addresses, but not sure of the benefit other than that. Definitely 20Amp relay contacts are handy. Can switch swimming pool equipment, small storage heaters and hot water.
@@notenoughtech I guess that could be beneficial in some situations, if you need them at 100mtr intervals or can afford to buy them just as repeaters. Maybe more industrial than private. Still, Itead are usually pretty good at choosing their market.
I think it's a common occurrence when businesses expanding their venues. With individual units having often new source of power. This way you could have all of that on a single ring of devices. It is massive tho and definitely not catered for typical household :)
Or a properly cert for EU/US/AU markets RCD with power monitoring that you can slot into existing box. There are some switches there already but the certification is questionable.
Sir, I connect spm-4 relay to air conditioner, but when I turn on the air cond, after 2-3 minutes it always triggered off by OPS (based on logs info).. It happens randomly to all air cond.. Can you help me what's happened ? FYI, this happened either OPS off (default) or on (configured). Thanks for your kindly help
Google Chrome takes all of your RAM
Sonoff takes all of your space in your fuse box :)
That's so true :) this thing can act as a defensive weapon!
Hey the case's blank holes align with the connectors of a raspberry pi 3!
Really? Darn... I mean darn!
UA-cam blocked your reply 🤦 checky Twitter for the picture! You are right
@@notenoughtech Yeah, exactly as i thought! Nice one!
Cannot find many video on this unit on youtube. I used this for controller my Solar power with battery backup. When detected the grid is off, on battery power, I have automation that shut off all the channels power of this unit so only the critical load like router, lights will stay on so the battery will last all night. The power monitoring are a plus. They have similar item call SPAN Panel but it cost $6000 USD. Good video.
That's neat solution for power saving!
@@notenoughtech Have you try to integrate with Home Assistant using Sonoff built-in? I not able to show the status correctly in the Home Assistant. It turn on okay but the button flip off in the home assistant. Any video or fix for that?
@@mrteausaable I'm not really good at HA so im not the best person to advise you in this topic
Have anyone tried 3 phase connection to this yet?
This device is very handy to develop a system for your solar array. For example if there is extra production of electricity, between 2 values, more than A and less than B, heat the water in the boiler with an electric resistor, even a tree phase one. If the solar array produces more than B bul less than C, also start charging the electric car, even using a 3 phase charger. If you have extra power, more than C but less than D, you can also start a pump to fill your water reservoire from a well pump. If your solar array produces more than D push those electrons into the network for credits. How much would such a system cost and how much would you have to pay someone to do it. Quite a lot. With this sonoff device and 3 extensions, you can do it yourself very cheaply
That's a really clever use case! Thanks for sharing
This is exactly my question, how can you make it do that? I have my main unit supplied with a total of 5.5 KW (220 V x 25 Amps), and I use 10 Amps (2.2 KW) on the 1st relay for the water heaters and 15 Amps (3.3 KW) for the rest of the house on the 2nd relay. I would like to create an "if then" statement that does the following function: IF (power consumption >= 3.2 KW on relay 2) THEN (Turn off relay 1: the water heaters) . This is not feasible with the ewelink app, if there a way to do it in the DIY mode?
You could easily do this with NodeRed and DIY mode
Thanks Mat.
No worries!
They will need to resolve the loss of pairing when cables are disconnected if they want these to be used in large scale setups. Pointless if the whole system needs to be setup again whenever a new device is added or a faulty relay unit replaced
I agree that was a bit annoying. It only applies to when system is disconnected while powered up. If you power both units down, then unplug and plug back in before you connect the power then you are good to go
What power the 5v relays on each or the slave units? I did not connect any of the slave to input power and all the channels relay still clicks/working. So where does the relays on the slave get power from? If from the main unit via Serial Cable, how many slave units can it power the relays?
If you lookat 5:43 the relay board has a small power supply on it - this is how each unit gets enough power to drive relays and relay 485 signal to the next unit without issues
good afternoon. have you tried connecting a third-party controller to it? according to rs485. does he have the ability to find out the addresses of registers?
I haven't but in theory it should be able to receive the signal from 3rd party. I haven't seen any documentation tho
for our new house to be built with electric underfloor heating where the various rooms can be controlled smartly. but which thermostats can I use to control both room temperature and floor temperature?
Personally I'd use 2 of them for greater control but if you come across something that supports both channels that would be good. Alternatively if you just hook up relays instead you can take a look at my DIY smart heating article this would support as many heat sources as you want
Haahah i'm so glad i found ur channel. Take care, Sir!
Thanks, you too!
To control really big Christmas light setups or every plug in your house.
I can only imagine the light setup needed to saturate this 🤭🤭🤭
I have my main unit supplied with a total of 5.5 KW (220 V x 25 Amps), and I use 10 Amps (2.2 KW) on the 1st relay for the water heaters and 15 Amps (3.3 KW) for the rest of the house on the 2nd relay. I would like to create an "if then" statement that does the following function: IF (power consumption >= 3.2 KW on relay 2) THEN (Turn off relay 1: the water heaters) . This is not feasible with the ewelink app, if there a way to do it in the DIY mode?
Thanks for the vid, I just need one simple way to connect a sonoff to the fuse box so it can tell me the total KWh consumption every day. Is there any way? thanks.
You will need something that can handle individual channels well - a current clamp would be the easiest way - Shelly 3EM should be able to do this
They're massive, id need a sperate switch room to fit them things in my house.
Haha you are 100% right
Hey, how do we wirelessly control it in case the internet is down?
If you are on the same network, local LAN controls will still work
is the inching option for 60 minutes available in SONOFF SPM?
Inching is available. Not 100% sure if 60 min is the max duration but it should be the same for each sonoff
Did you ever find power-on state setting or perhaps know if it is supported for these devices? I am finding the relay unit defaults to power off when the utility supply returns. A bit of a problem in a large deployment application if you have to keep going back into the app to turn each channel on each time the utility / supply power goes off and returns.
I haven't seen it last time I checked. but if I;m honest its been a while since the last update as the unit is big and I have no particular use for it at my house
hi, did you ever find a solution to this? thinking of picking up one but your point is very important
@@ChristianCastaldi I have not yet found a way to do this. I ordered myself a device to flash Tasmota to the SPM and try the developer mode, but I’m yet to accomplish this. I did receive the following response from another forum when I asked if power state mode was possible: “Yeah, please makre sure the firmware of SPM smart stackable power meter(main unit and 4-relays) is upgraded to the latest version 1.2.0 and eWeLink app is upgaded to 4.23.0”.
However the firmware at the time was not yet available to download for my region. I need to check again if it perhaps is as power state mode control without having to go developer mode would be a lot easier. I am wanting to roll this out to over 250 power supply points so if I can’t get this to work then it’s not viable for me either.
Ohh ok makes sense, will try it out :D
Hello, do you know if the relay is 2pole or 1pole switched? I meant the N1 and L1 disconnect when power off the relay or N1 always connected only L1 is disconnected when power off (1pole)?
It's a one pole relay
I'm not sure, but from looks of it, it seems that I can connect different phases to each of the inputs and it will work correctly, right?
I'm not an electrician so I dont want to confirm this. I believe so is my answer but do ask someone more knowledgeable in that field
@@notenoughtech nobody know the answer, sonoff support doesn't reply. I did some measurements, and there is some weird voltage on IN2, IN2 and IN4, when the input phase is connected to IN1. I don't have a proper tool to check, but the simple voltmeter was showing jumping voltages around 70V with 230V input... My guess is some leftover voltages coming in between inputs. Also - when there's only IN4 connected, the device doesn't work. The IN1 must be powered for anything to work.
@shalak001 I'll ask my Sonoff contact
You can run separate phases as long as you connect separately neutrals for each of the phases.
@@notenoughtech Hmmm, there's no such thing as a "separate neutral" - in regular home circuit design, the neutral wire is shared and connected together.
I already returned the device, so I cannot do any tests at this point. I went with Zame MEW-01 instead (which comes without switching, but I don't really need it)
Can they switch devices that have inductive loads? Do they have built in AC SNUB circuits?
I haven't seen any inductive rating on these so can't really answer this for you. In theory if your inrush current stays within the max current limit then yes
Hi,
I have a few clients interested in using this in student accomidation, where they have installed solar but they can't figure out where all the power is been used.
There is also load reduction process coming from our electrical supplier in RSA. Instead of turning entire area's off they will have load restrictions in areas if you exceed the usage during these periods you will be cut off.
This device would be a nice way to control usage during these times.
Have you looked at installing Tasmota on this unit yet?
As it comes with sonoff DIY I have little reason to tasmotise it as the data is a available via rest request
want to send mqtt information from the device.. there are reasons this can be useful.
We have a few scenario's where we manage IOT devices from our cloud system. ... I have a few device here will continue to see if I can get Tasmota one.
Thanks again for your video's I find them really good.
I'm not sure how tasmota handles the rs485. Not sure if this protocol is supported so you'll have to check that before flashing. Other than that it should be pretty straight forward
Hey does this connect to Alexa or other home assistants for switching on or off?
yes via eWeLink controls - just name your channels
@@notenoughtech hey one more question.. how do we wirelessly control it in case the internet is down?
eWeLink comes with local LAN controls which means that if you are on the same network as the device you can still send commands from the app
Thanks for the video. So they don't replace the circuit breakers I already have so then I'll connect these circuits in series with the existing ones, correct? Another question I have is about connecting a circuit with two phases on it, how would that work? In Mexico we have 127V, 1 phase and N for most circuits in a home but also use 220V, 2 phase for AC units. How would that be connrcted and controlled? I imagine I would have to use two slots per AC unit in this case but they would have independent controls. Any suggestions or thoughts?
I'm not the best person to advise on multi phase setups if I'm honest. Things are done slightly differently here so I only had to deal with a one phase of 240v
But in general yes you want them to be in line with your breakers
Thanks a lot. Very interesting metering device by SONOFF.
Pleasure is mine. I have 2 new devices that I'll talk about soon
is Sonoff SPM - good device for home automation ?
It's an overkill. But it depends on what you have in mind
I bought the product but it doesn't work with voice commands. It's a shame because I didn't expect that and other sites say it works with Alexa and Google Home as you mention in the video.
I tried to connect it but couldn't.
Neither Alexa nor Google Home can see the device.
Strange - as a workaround you can make an automation scene, name it "Relay ON" and trigger it with a voice routine
@@notenoughtech Thanks for your reply. Indeed this way works.
Thank you very much, greetings from Greece.
is this the only wired solution with sonoff dyi available right? Im building a new house and would like to automate around 60 lamps/doors/etc is this overkill for it?
It depends on how you want to resolve it. If I was doing it all from a scratch a relay board with a single controller would be a way I'd pick. This has lots of advantages but require you to run your wiring in a slightly different way if you are after individual socket control etc
@@notenoughtech thanks, yeah I would build the house to support it. Maybe the 4ch from sonoff can do it, still only wifi and don't have the dyi natively right? :(
You can tasmotise both of you wish. But only SPM has the DIY
We are planning to deploy this in our resort to monitor and control electrical usage. I have been running a test unit for a few days with a lamp connected to a channel, but I see that it does not keep more than about 1 day's worth of kw/h data without an SD card. I am assuming that an SD card would solve this as advertised on SONOFF? Have you perhaps tested this? I am only asking because I am waiting for an SD to be delivered to test. Regards Jason
Yes logging up to 3 months is possible only with the card. I'm kot sure what's the cloud storage allows for.
@@notenoughtech it looks like it only logs 24hrs in the cloud. I could be wrong.
My contact said you can have 180 days in cloud
@@notenoughtech thank you for checking with your contact. I’ll do some more live testing. I ran it for a few days without an SD card but could not retrieve any historical data of the prior day’s consumption.
could you email me your screenshots? I will pass this on. I will also need your device ID
those blanked ports are layed out exactly like a raspberry pi. so maby they were thinking about that? or maby we can expect something in the future?
I don't know 🤷 I just posted picture on twitter with RPI3 stacked exactly on top of the holes
I can think of uses for 20Amp relays, but I am not sure of the need of a "control" unit. Why not just have each module controlled like other devices in the range?. I guess if you need a lot and run out of IP addresses, but not sure of the benefit other than that.
Definitely 20Amp relay contacts are handy. Can switch swimming pool equipment, small storage heaters and hot water.
Distance would be the most beneficial factor. You can have every unit spaced up to 100m which makes it over 3k as 32 units are supported
@@notenoughtech I guess that could be beneficial in some situations, if you need them at 100mtr intervals or can afford to buy them just as repeaters. Maybe more industrial than private. Still, Itead are usually pretty good at choosing their market.
I think it's a common occurrence when businesses expanding their venues. With individual units having often new source of power. This way you could have all of that on a single ring of devices.
It is massive tho and definitely not catered for typical household :)
@@notenoughtech Agreed. I was thinking commercial but likely not home. I think it would be great to see a 20Amp version of a SOnOff basic though
Or a properly cert for EU/US/AU markets RCD with power monitoring that you can slot into existing box. There are some switches there already but the certification is questionable.
👍 Great video! Is that possible to connect this with a Sonoff RF Bridge in order to use a RF 433 remote to control it? Thanks!
You will be able to link it via scenes. So yes you can pair a remote and trigger the relay
@@notenoughtech Thank you so much for your kind help!
E.E. clickbait alert!!