Hi there. Thanks for this review. I am finding something about Sonoff 4CH and your video answered my all questions. Thanks for your hard work and time.
ITEAD had a similar product on their site. 4 channel but with normall open and normall closed contacts for output. It also had a momentary on/off feature. I am thinking about building a remote garage door opener for those times I should forget to close the garge door. I found the one I described on a site in China and waiting for it to come in. If this had the momentary feature I would try hacking it by removing 120 volts A/C going to each relay and make the relays just for contact purposes.
I have the earlier version of this on order and it should be in next week. It has 4 relays and a built in momentary feature that is selectable. That should do what I need perfectly without programming. I have never did any programming but I think I need to learn how to. I am good with electronics hardware just never got into software programming.
Hi, data for timer are saved in Sonoff or in mobile phone? I mean do the phone has to be turn on and in an area with signal in order for the channels to on-off in time or you program and forget the controller. Another question is the communication both ways, I mean the indication, in the mobile, that one channel is on or off is because it was asked to do so or as a feedback from Sonoff. Thanks in advance and for this very helpful review.
I want to hack the switches on board the 4ch sonoff module instead of using the th10 module so I can have wall mount switches too.. are the switches momentary or latching type? Could you test and report please?
But when doing connections on site with switches and plugs..cables caome from through switches too or there will be no role of switches, everything will be controlled by sonoff...plz explains, so that i can do connections at my home
Is it possible to have a single switch controlling 4 devices in an incubator? I need to control temp and humidity : when humidity to high/low: start a dehumidifier or humidifier, when to hot/cold: start a warmer or the cooler. Thanks
Please help this was just demo but when you install it on wall, then how will u do connections becaz there is no seperate live wire for wall switches, there is one live wire which they put all together in all switches, will out wire on sonoff will go thru wall switches to controll wirelessely...plz help
Sameer Athaley you can connect that one live wire to "In" pin then you can take 4 output live wires and connect them to different things you want to control.
the App has a timer feature, so whenever you open the garage door after a given time it will close it. You can also flash the firmware to do whatever you want
Hi man,sorry for my ignorance,i am new to home automation,just asking,does the control board needs to be connected to the modem or router to get this to work?thanks
There are two versions of the 4 Channel Din Rail Mounting WiFi Switch. The Sonoff 4 Channel and the Sonoff 4 Channel R2. The Sonoff 4 Channel has a maximum total current of 10 amps, while the R2 version offers 10 amps per channel. The eBay link you provide in your show notes doesn't indicate whether this is the original or the R2 version. However, the eBay add does say that it has a 10 amp maximum current. No mention of a per channel maximum current. www.itead.cc/sonoff-4ch.html
Your information is inaccurate. The R2 has the exact electrical specs as the 4CH. A total Wattage/AMP of 2200W/10A. The R2 will fail if overloaded with 10A per channel simultaneously. However, the R2 can handle 10A per channel through its switching functionality, but only when drawing 10A one channel at a time.
Hi, in your video said that will hack the firmware with custom code, but in your videos is not present. Have you some link/tutorial that teach how to change Sonoff 4ch firmware? I have some video for other Sonof product but not for 4Ch. Thanks in advanced
@Ramakrishnan & @@MadeEasyChannel : To make it clear, as per the instruction manuals that comes along with these switches, on the input side of the switch you CANNOT swap Live and Neutral lines. But It is ok to swap on the output side of the switch.
How the heck do you know which one is the live and which one is neutral if you are using a wall socket ?? unless you have code the sockets yourself or you test them before inserting the plug
Pro is $8 more and can be powered by AC or DC. each relay is not connected to AC or DC power, each relay it open for you to connect to anything you want.
Hello I have a question please help. I have connected each channel from the sonoff wifi switch 4CH to a contactor to avoid loading the switch since I have connected 2 air conditions and 2 hot water resistance. Since the contactor has a bobbin inside it i am facing a problem of electricity going backwords to the switch which is affecting the switch and is sometimes restarting. Someone told me that i need to install DIODES between the switch and the contactor on each channel to resolve this issue. Is this the correct resolution? if yes which type and size and characteristics of DIODES should i buy? Thank you.
The Sonoff is not designed to take the load of an A/C or Heating elements. Here are the technical specs for the Sonoff: Specification for Sonoff Basic and Sonoff 4CH Voltage range: 90-250v AC(50/60Hz) Max current: 10A. Max Wattage: 2200W. Enclosure Material: Fire-retardant ABS V0. Humidity: 5%-90%RH, Non-condensing. If your A/C, Heater, or the combination of both draws more that 10Amps/2200W, I highly not recommend connecting any of those appliances to the Sonoff. It's a disaster about to happen.
its old but may help somebody this is usual problem when contactors are too close to electronic control. try move them away or move controller from interference. switching power to coils and arcing contacts generate electromagnetic interference which cause this problems
Please read again he is using a contactor to operate AC, Heaters. Only a minor load of contactor coil will be on sonoff internal relays, a few mA may be
for an AC coil contactor you cannot use a diode, move the contactors away from the sonoff or try adding a small capacitor in parallel to the coil of contactor, a small capcitor 0.5uf should go
yes, there is a German video that explains that , you just connect them in paralel to your light switch, and this was my main concern before buying as well
yeah they have WIFI wall switches too www.ebay.com/itm/Sonoff-WIFI-Wireless-Wall-Light-Touch-Switch-Glass-Panel-LED-Light-Controller-CY-/322503602118?var=&hash=item4b16b66fc6:m:mNtXFngbRNT9y3dfBJa4xvA
MadeEasy Will those wifi wall switch work with this 4ch device, adding another option beside the app and the onboard switches, or it's a complete different product?
I want to use it in my rv can i connect 2 sunoff together with the same app because i need more than 4ch, and can i use it just with wifi without internet?
As such it is not possible as one side of each relay has been made common, now you have 2 solutions 1. either cut the prints on PCB to make separate 2 relays, which may be difficult if you are a biginnear 2. or use 2 switches to turn on two relays which can then be used independently
Thank you very much. Do you also know if I can use this, to turn on of a DC 12 volt , 2 Amp DVR or it is only for AC? I found it on banggood with 16euros
th-cam.com/video/99ZN7GYqvmk/w-d-xo.html heres a link to a video I made. it allows for you to turn off DC Voltage. in the video im controlling 24V AC but this will work with DC as well
THANK YOU for these quick reply's. One last question. Is this device stable? (does it disconnect from wifi or freezes? ) and is there a same device but with ethernet lan cable connection?
The device is stable and works well. As of now I have not seen any devices with LAN Cable. I do sell these on Ebay if you want to buy one. Here is the link. www.ebay.com/itm/Sonoff-4CH-ITEAD-4-Channel-Din-Rail-Mounting-WiFi-Switch-/112362705866?ssPageName=STRK:MESE:IT
These things ARE NOT SAFETY RATED OTHER THAN BY THE MANUFACTURER, NO UL RATING OR ANY OTHER RATING ? I WOULD NOT TRUST THEM IN MY HOME FOR THAT REASON, COOL YES, SAFE, WHO KNOWS ? HAS EUROPEAN RATING CE THAT'S IT.
Hi there. Thanks for this review. I am finding something about Sonoff 4CH and your video answered my all questions. Thanks for your hard work and time.
Picked one up, really easy set up, thanks for the clear concise video.
nice video ! what is the range of this device from your experience ? did you tried it in the house ? do I need additional router for every floor ?
ITEAD had a similar product on their site. 4 channel but with normall open and normall closed contacts for output. It also had a momentary on/off feature. I am thinking about building a remote garage door opener for those times I should forget to close the garge door. I found the one I described on a site in China and waiting for it to come in. If this had the momentary feature I would try hacking it by removing 120 volts A/C going to each relay and make the relays just for contact purposes.
I have the earlier version of this on order and it should be in next week. It has 4 relays and a built in
momentary feature that is selectable. That should do what I need perfectly without programming.
I have never did any programming but I think I need to learn how to. I am good with electronics hardware just never got into software programming.
Ken what was this version called with the built in momentary ?
can you conrol4 4ch with api calls? If you have any idea, do let me know
thanks
Hi, data for timer are saved in Sonoff or in mobile phone? I mean do the phone has to be turn on and in an area with signal in order for the channels to on-off in time or you program and forget the controller.
Another question is the communication both ways, I mean the indication, in the mobile, that one channel is on or off is because it was asked to do so or as a feedback from Sonoff. Thanks in advance and for this very helpful review.
it logs it in Sonoff servers, if your phone is off the sonoff will still work as long as it is connected to the internet via wifi
it does not notify you when a channel is turned on or off, it just does it
Thanks again for the infos
I want to hack the switches on board the 4ch sonoff module instead of using the th10 module so I can have wall mount switches too.. are the switches momentary or latching type? Could you test and report please?
The switches are momentary.
MadeEasy thank you!
good evening,
because the 4 channel sonoff does not work more than one channel connected at the same time?
The problem is the appliance?
no the appliance should be fine. Disconnect all appliances and see if you can get it to turn on multiple channels
But when doing connections on site with switches and plugs..cables caome from through switches too or there will be no role of switches, everything will be controlled by sonoff...plz explains, so that i can do connections at my home
Is it possible to have a single switch controlling 4 devices in an incubator? I need to control temp and humidity : when humidity to high/low: start a dehumidifier or humidifier, when to hot/cold: start a warmer or the cooler. Thanks
Please help this was just demo but when you install it on wall, then how will u do connections becaz there is no seperate live wire for wall switches, there is one live wire which they put all together in all switches, will out wire on sonoff will go thru wall switches to controll wirelessely...plz help
Sameer Athaley you can connect that one live wire to "In" pin then you can take 4 output live wires and connect them to different things you want to control.
Nice video, but can you use a one off those small Sonoff devices with the same software with this sonoff 4ch device?
if you flash it, you can
Perfect. Is it work over internet? I mean can i turn on from internet?
It basically does from what i understood, but does it work when my router is out of data ? Will it still work ?
Does it have a momentary turn on then about a second later turn off? Does it have a flashing mode, rapid on/ off feature?
the App has a timer feature, so whenever you open the garage door after a given time it will close it. You can also flash the firmware to do whatever you want
Crystal clear. thanks
Do you need to pair once only for four channel? or each pair for one channel?
Could you please comment on the power consumption idle on wifi and load on wifi?
Can you connect any sensors to the 4ch? like the TH16 via 2,5 mm jack?
Hi man,sorry for my ignorance,i am new to home automation,just asking,does the control board needs to be connected to the modem or router to get this to work?thanks
the bord has WIFI, you have to connect to your wifi to work
There are two versions of the 4 Channel Din Rail Mounting WiFi Switch. The Sonoff 4 Channel and the Sonoff 4 Channel R2. The Sonoff 4 Channel has a maximum total current of 10 amps, while the R2 version offers 10 amps per channel. The eBay link you provide in your show notes doesn't indicate whether this is the original or the R2 version. However, the eBay add does say that it has a 10 amp maximum current. No mention of a per channel maximum current.
www.itead.cc/sonoff-4ch.html
Your information is inaccurate. The R2 has the exact electrical specs as the 4CH. A total Wattage/AMP of 2200W/10A. The R2 will fail if overloaded with 10A per channel simultaneously. However, the R2 can handle 10A per channel through its switching functionality, but only when drawing 10A one channel at a time.
Hi, in your video said that will hack the firmware with custom code, but in your videos is not present. Have you some link/tutorial that teach how to change Sonoff 4ch firmware? I have some video for other Sonof product but not for 4Ch. Thanks in advanced
Fabio Ammaturo I think tasmota is suitable for all the sonoffs
tq for the demo. I plan to do it myself soon
Can I swap live and neutral lines. Not that I want to but I am running them off a two pin wall plug which can be accidentally reversed.
Ramakrishnan Manoharan yes you can swap them.
@Ramakrishnan & @@MadeEasyChannel : To make it clear, as per the instruction manuals that comes along with these switches, on the input side of the switch you CANNOT swap Live and Neutral lines. But It is ok to swap on the output side of the switch.
If i sat a timer and then turned off my phone.. is it going to work at its time?
Nice review. I am looking for reprogramming this device to work from google home. Any leads on that?
I honestly have no clue.
works with google home out off the box !
10 amps total or per channel. Thanks for sharing.
per channel
MadeEasy wow, that's a lot, especially in 230v. Over 2200 watts. Enough for 40 50w led reflectors. Crazy!
no way its 10A per channel at the same time, 10A at any given time yes, but 40A at 230v at the same time will burn the shit out of your house
its 10 amps in total, saw on some forum today.
10 AMPS total.
What will happened if theres power outage?does the timer will be reset o it is still save after the power comesback?
Need a reply to this question please
How the heck do you know which one is the live and which one is neutral if you are using a wall socket ?? unless you have code the sockets yourself or you test them before inserting the plug
I used the volt meter to find with prong was which
Just touch it ,if you remove your hand in fraction of second it's live .if nothing happens it's neutral
So, what the difference from the pro version???
Pro is $8 more and can be powered by AC or DC. each relay is not connected to AC or DC power, each relay it open for you to connect to anything you want.
Hello
I have a question please help.
I have connected each channel from the sonoff wifi switch 4CH to a contactor to avoid loading the switch since I have connected 2 air conditions and 2 hot water resistance.
Since the contactor has a bobbin inside it i am facing a problem of electricity going backwords to the switch which is affecting the switch and is sometimes restarting. Someone told me that i need to install DIODES between the switch and the contactor on each channel to resolve this issue.
Is this the correct resolution? if yes which type and size and characteristics of DIODES should i buy?
Thank you.
The Sonoff is not designed to take the load of an A/C or Heating elements. Here are the technical specs for the Sonoff:
Specification for Sonoff Basic and Sonoff 4CH
Voltage range: 90-250v AC(50/60Hz)
Max current: 10A.
Max Wattage: 2200W.
Enclosure Material: Fire-retardant ABS V0.
Humidity: 5%-90%RH, Non-condensing.
If your A/C, Heater, or the combination of both draws more that 10Amps/2200W, I highly not recommend connecting any of those appliances to the Sonoff. It's a disaster about to happen.
its old but may help somebody
this is usual problem when contactors are too close to electronic control. try move them away or move controller from interference. switching power to coils and arcing contacts generate electromagnetic interference which cause this problems
Please read again he is using a contactor to operate AC, Heaters. Only a minor load of contactor coil will be on sonoff internal relays, a few mA may be
for an AC coil contactor you cannot use a diode, move the contactors away from the sonoff or try adding a small capacitor in parallel to the coil of contactor, a small capcitor 0.5uf should go
What is different between sonoff 4ch and sonoff 4ch r2
Sir for this need any extra wifie router or no need. Thank you
yes you need a wifi connection to a router
Is it possible turn on with the switches and off with the app? And vice versa?
yes, there is a German video that explains that , you just connect them in paralel to your light switch, and this was my main concern before buying as well
There are modified versions of Sonoff 4ch that even support ordinary wall switches. Do check at www.lebhile.com
And can it be fit in gang box and work with my switch board
The existing switch board will become useless right?
Yes.
If I dont want to use the damn phone to turn the light on, could a regular switch turn it on?
yeah they have WIFI wall switches too
www.ebay.com/itm/Sonoff-WIFI-Wireless-Wall-Light-Touch-Switch-Glass-Panel-LED-Light-Controller-CY-/322503602118?var=&hash=item4b16b66fc6:m:mNtXFngbRNT9y3dfBJa4xvA
not this one?
you can flash the firmware and manually wire in a switch if you want, lots of work though.
MadeEasy Will those wifi wall switch work with this 4ch device, adding another option beside the app and the onboard switches, or it's a complete different product?
Marcelo Cunha yes it will work
I want to use it in my rv can i connect 2 sunoff together with the same app because i need more than 4ch, and can i use it just with wifi without internet?
yes you can have 2 sonoffs connected to the same app, but i dont know if the sonoff will work without internet, i have not tried it.
MadeEasy thank you so much you are so kind, i need to check if it works without internet before i buy it
I want to use 2 channels on inverter and 2 channels on my direct light. Is it possible.
the relays switch 120v AC you can control your lights, but not sure if you can control your inverter if it is DC
As such it is not possible as one side of each relay has been made common, now you have 2 solutions
1. either cut the prints on PCB to make separate 2 relays, which may be difficult if you are a biginnear
2. or use 2 switches to turn on two relays which can then be used independently
My ewlink app shows the sonoff 4ch but shows as offline.
Can i use this to control multiple led light strips?
Eddie ed this controls 120v AC
Eddie ed u can. But u need led drivers for each led strip coming OUT of sonoof rail.so u hook drive to output side
thanks.
Can I use the app, when I am not home?(from my office with 3g)
Yes you can!!!
Thank you very much. Do you also know if I can use this, to turn on of a DC 12 volt , 2 Amp DVR or it is only for AC? I found it on banggood with 16euros
th-cam.com/video/99ZN7GYqvmk/w-d-xo.html
heres a link to a video I made. it allows for you to turn off DC Voltage. in the video im controlling 24V AC but this will work with DC as well
THANK YOU for these quick reply's. One last question. Is this device stable? (does it disconnect from wifi or freezes? ) and is there a same device but with ethernet lan cable connection?
The device is stable and works well. As of now I have not seen any devices with LAN Cable. I do sell these on Ebay if you want to buy one. Here is the link.
www.ebay.com/itm/Sonoff-4CH-ITEAD-4-Channel-Din-Rail-Mounting-WiFi-Switch-/112362705866?ssPageName=STRK:MESE:IT
Polarity only matters in dc and ac doesn't ?
yes it is true. but its recommended to connect it how it is labeled
It does matter in that live (hot) is switched but neutral is not. It's safer and to regs to switch the live conductor.
every time the password expires all devices are unavailable and then show fail to connect ....what needs to do?
i have not seen that, im not sure
Do i need home wifi for it ?
MilosCsrb yes, it needs to connect to home WIFI for it to work
Too bad, i need it for some garage door where there is no internet
We have the same dillema,i want to use it on my tool room where there is no internet..
am i control this from different city ?
Yes. t can be controlled anywhere in the world with a internet connection.
Can i connect ac to it
No. AC generally needs at least 16 Amp switch. This Sonoff switch can take care of load up to 10Amp only.
I'm sure all those as clueless as you,,, understood completely, each time you used a different names for wires. Ground/Earth......... Scary
im used to using "ground" but the label on the sonoff has an "E" for "Earth"
"HOT" ?????????
These things ARE NOT SAFETY RATED OTHER THAN BY THE MANUFACTURER, NO UL RATING OR ANY OTHER RATING ? I WOULD NOT TRUST THEM IN MY HOME FOR THAT REASON, COOL YES, SAFE, WHO KNOWS ? HAS EUROPEAN RATING CE THAT'S IT.