Thank you so much for this video. I am usually a software guy. But I needed a break. So working with little electronic stuff looks really fun. Thanks for the tips. I especially love the ability to create custom PCB! I might use it for an RGB LED Cube!
I would love to use this application for a water level sensor that if activated turns off the power source and then alerts the user that the sensor was triggered. I have so much I still need to learn. Thanks again for such clever ideas and explaining it in such an easy to understand way.
@@trevorslab My thinking... usually HV traces are blank and well covered in solder... spacing is too small as well .... so I cant believe this one is safe... well... not for strict western regions at least
@@CrimsonTide001 they do, you're controlling high voltage, so you better restrain yourself from buying some cheap-ass stuff that might put your home in danger.
Please...just please, have some separation between the low voltage stuff and the mains power. In your enclosure the mains terminals are almost touching the relay board.
propably a stupid question perhaps, but wouln't it be better to turn the relays 180 degree? now you have the relays output circuit only mm away from the driving circuit.
Can you please make a video on following concept Esp8266 home automation 1) which can run on dead WiFi ( without internet ) or make its own hotspot 2) having switch override option ( so my grandparents can also use lights and fans ) I implemented your old blynk server automation video which was working awesome but now my internet is dead and one problem was my grandparents wasn't able to turn on/ off devices
Yes Ans 1 . You need to try offline IP based program for non internet usages.. Ans 2. For this solution you need use two way switch in switch board for non automation usages. Because in this way both relay and Switch work simultaneously
People are complaining there are no optocouplers. There is more than enough galvanic isolation in the relay. Absolutely no need for optocouplers. It would certainly be a gimmick in this application. However, I'm not saying this is a well thought out idea. 16 remote mains switchable circuit in one place, what 16 AC appliances would you need to, 1. Plug in at one point in the home, and 2. Need them all to be remotely accessible? Also the ESP32 is massive overkill for this super simple application. Why not use an esp8266? So much cheaper! Or an arduino with a Wi-Fi chip? Or an AT tiny driving a multiplexing IC and a Wi-Fi chip?
Its also worth adding, this circuit board design is not well thought out. He effectively has 16 common inputs which I don't understand. He only needs 1 AC input. I do understand the 16 outputs though. And why not build the 5V power conversion into the board? That will quickly turn into a bird's nest of wiring with 16 inputs and outputs. The other thing is, using all 16 outputs, you must keep the sum of each appliances power under 2400W in Australia, probably 1100W in USA? depending on the circuit breakers rating in the fuse box (most will trip at 10A). That's an average of 60W per output in the USA.
@@dharmikbhavani7272 we need optocoupler to separate the grounds of microcontroller nd relay.. bcz in any short circuit , your controller will be safe . We also need zener diode to block reverve emf induced in the primary coil of relay
please add no of pieces along with the names of components while narrating, otherwise a very god attempt , nice content overall, also if you have sponsored posts mention costs specifically the overheads like customs taxes etcetera to keep things transparent. I can see some title related comments being sparked, its just a matter of home automation being not standardise yet and hence different vision on same thing. Its just part of process. Good luck for the next one :thumbs_up:
Hi, very nice proyect, I just wanto to add the relays dont have the necessary insulation and electric shielding for this to work properly, a single diode is less than suficient, I would like suggest the use; An insulated ouput, like the diigtal pin to a UNL2003 to avoid vcc peaks, and then a of a snubber and a varistor on each relay output. For the sake of the electronics. Good work !
Nice project. But is it wise to use an external iot platform? If they pull the plug you're done. I'd advise to host your own with MySensors, Domoticz, OpenHAB, Grafana, etc. You can run all on one raspberri pi. NRF24L01 is supported by MySensors out of the box.
Thanks for the update I’ll explore them all. Actually I have tried mosquito mqtt server on raspberry pi but that’s only limited to local area connections What if we want to control appliances from anywhere in the world. Then we need to use ubidots or other cloud based mqtt server
@@techiesms It is not restricted to local area networks. You can access your raspberry pi from anywhere in the world if you configure your router to use NAT. Just forward the desired ports to a local ip address and port. It is also possible to use a dynamic dns to be able to use a custom url as well.
Hi. I love this project and I wanted to order this PCB but i saw there were about 35 errors when i do DRC check. Can i order it like that and will it work correctly. Thanks.
I'm thinking of using the relays to bridge button/switch connections on appliances instead of outlets. Thus project may have more uses than you might have thought!
Sir pls reply me if I use ttp223 touch sensor instead of normal switches will it work? and while using ttp223 I want to use just "up and down" buttons for speed control for fan with same circuit which you have mentioned as it is best non humming kit for fan ,if possible pls send me the coding+circuit diagram for my dream project . I'll be very great full to you
Yeah, no isolation, and those relays are way too small for any real world load switching. In reality you do not need all those relays when you can use properly rated power transistors which will reduce overall power consumption and the need for a snubber network / diode. You can in turn use the transistors to switch solid state HVAC relays which can handle real world loads like an entire lighting section, air conditioners and other moderate to high current appliances even switch your main city power on and off or between solar or generator power and mains city supply. make the system usable to a realistic degree.. Those tiny relays on board will only introduce a possible fire hazard into your home if you over load the circuit. Modify your PCBs to have line isolation and mounting options and earthing provisions so people in countries that have actual electrical codes that are enforced can actually use it legally and safely. Also this is in no way automation, this is simply over the net remote control and you do not need fancy apps on a smartphone to do this. a simple webserver arduino code with some HTML code in it loaded straight into an ESP module and all you need is a device that can connect to wifi and has a browser and you are in business. I can take your whole project and reduce it's size over half and make it NEC compliant for use in the US all while making it capable of controlling high current loads with no mechanical relays on the main PCB at all.. Automation would be having circuits on a timer like a sprinkler system at home or on a day/night sensor to turn lights on and off..
@@Thuliolima2008 I myself do not have to show you when all you have to do is look up any 1st world based system that is properly installed and being used in places where electrical codes are known and enforced.. Look at the many many other IOT based systems sold under big name brands and installed in places in Canada, The USA, the UK, etc... That is what 1st world developers can do..
Perhaps you should do a bit of research before spitting on someone's work. Your point about true automation is correct, this has no brain, so to speak, and is thus not true automation. This hardware package could, however, be used for true automation with no modification, simply different code. That being said, this is where you stop being right. The transistors he is using are, in fact, correctly rated for this application. Transistor rating also has nothing to do with the snubber diode, which is designed to snub (thus the name) the back voltage produced by the relay coil turning off. Any proper circuit which uses a mechanical relay will have such a diode or equivalent protection system, changing the transistor does not eliminate the need for this. Your comment seems to indicate that the relays could he replaced by high power transistors, but that's such a ridiculous idea that I'm going to assume that's not what you meant. Maybe you meant use the high power transistors to drive a SSR, but that's unnecessary. Small transistors like the ones he has are perfectly capable of driving even very large SSRs, and actually, for the size SSRs used in home automation, the NodeMCU itself could directly drive them. As for the size issue, I don't know if you've ever seen a SSR, but they are typically larger than their mechanical counterparts. That being said, I'm sure if you went with the most expensive, modern SSRs you could find, it would be significantly smaller. It would probably also be 100x more expensive, but since you're a rich guy in the 1st world that shouldn't be an issue for you. And just FYI, most '1st world systems' use mechanical relays, snubber diodes (usually TVS), and a transistor based driver circuit very similar to the one used here.
ElfNet Designs "That is what 1st world developers can do" : You are a proud man, good for you keep up this community spirit . This video showed you the essentials, it has all the parts to make home automation, so you can customize it (or built it to your code). I ve replicated it and it is working fine with all the automation rules (dependencies and timing) that I needed and only 8 relays (upgraded to 25A relays for AC, heaters etc.. block relays with isolation so didnt use the video circuitry) but couldnt do it without the support of such videos.
this board is HIGHLY dangerous. There is NO insulation from the mains side to 5V wahtsoever and traces on the PCB getting super close. This is a very very bad design that is very dangerous to use! Do not replicate this!
if internet is down so we will be needing a manual switch, and what we can do to avoid short between these connection when the internet comes back online
great tutorial, but before starting I have one question, in My project I need to connect 1. 10 Small LED RGB White 5V (Planning to use PCA9685) 2. 2 DC motors 6v or 12v (Planning to use L298N) 3. 4 Stepper motor SG90 9gm ((Planning to use 2nd PCA9685) 4. Control over WIFI/Bluetooth, by Android app(which I can develop) 5. 1 Speaker with MicoSD mp3 audio in it (MAX98357A/SD car reader) Can I use ESP32 for these all or do I have to buy other chips as well ?
If you can use arduino for it, it will work even better with esp32 because its faster and better specs. It does have a 3.3v output instead of 5v and it can only supply like 30ma instead of the like 80ma of the arduino so u might need the uln2803 chip that is a 8bit transistor array.
Very cool your project friend I made one for myself and I'm using 13 equipment but I have a problem with power failure and I wanted to save the status of the pins. Would you have a video explaining how to configure this card? Thank you very much in advance
Hi, please answer my question. What if the wifi password is changed? Do we have to change it in the code and upload it everytime? In that case wouldn't it be a flaw?
why did you put a transistor in between the relay and the io pin? You could have just connected directly to the relay input (I'm from software background so I'm bit confused)
@@techiesms JESUS CHRIST just STOP. Just STOP!!! STOP giving people on the internet such dangerous advice! You obiously have NO clue about electronics! Jesus Christ simply because it works does not mean it is safe!!
Nice project! But if i were you, i would not put the trace that goes from the transistor collector to the relay coil that close to the relay's contacts traces! the isolation gap is minimal and there is a risk of mains voltage jumping to the low voltage circuits side! (dangerous!) Maybe you could correct that on the next revision of the board... Anyways, a really practical project!
Thank you so much for this video, I just want to know what is the maximum current rating for each relay channel, i know that the relay can handle 10A, but how much can the PCB lines hold?
What is the code for all on ..it should be able to on all in one time from one button..and than u can choose... because some time if u are in hurry and u want everything on so what u will do
That we can do on the ubidots server only. We don’t need to change the hardware or the code Timer control operation are possible IN This project with same arduino code and hardware with little changes on ubidots server
Very precice video , matched engineer and pro-hobyist audience. Short, informative, good english.... outstanding job, subscribed!
In future we could control this device from all over in the universe
Sir you are doing awesome project....I want to become like you..
Also your circuit designeing skill is awesome
Home automation series is the best tutorial of this channel 👍😘
Thank you so much for appreciating my work 😇
Would you like to give me your PCB plan? If you don't mind send it to my e-mail..thankyou rmschandimal@gmail.com
I'm looking for a guy like u
Finally found
Tq sir...
Bro! Your English is actually very good! As a natural speaker i can say I'm very impressed by your pronunciation, good job! Subscribed!
this comment smells..
fresh account, zero everything..
just saying ;)
Probably a Russian bot
I would like to buy entire board with components.What is the cost
Thanx for sharing. The pcb looks super neat
This is not home automation, this is just a remote control.
Isn't that the first step to home automation? Without remote control how can you automate?
It would be more useful if it was compatible with google home or alexa
ua-cam.com/video/vV4OzPgTXLY/v-deo.html
@@kwiztas use a bus.
@@techiesms still not automation
this is what I was looking for first. thanks And continued success 👍
Thank you so much for this video. I am usually a software guy. But I needed a break. So working with little electronic stuff looks really fun. Thanks for the tips. I especially love the ability to create custom PCB! I might use it for an RGB LED Cube!
I got what i was looking for, thank you
Bro what is the total cost for this project,which include PCB board and all the components.
The code seems to be removed from the link provided. Got updated link??
I would love to use this application for a water level sensor that if activated turns off the power source and then alerts the user that the sensor was triggered. I have so much I still need to learn. Thanks again for such clever ideas and explaining it in such an easy to understand way.
Hello friend, please if you have found out how to do it can you please share it with me?
ua-cam.com/video/-jYCOD8rba4/v-deo.html
@@abzautomations ua-cam.com/video/-jYCOD8rba4/v-deo.html
Great information on your channel thanks form pakistan
Very nice project 👍 Excellent
Thanks
very well explained and detailed . i really love it . you had made a great video.
You should have used Optocoupler for isolation
I agree. And there should be mounting and earthing options as well.. Who am I kidding, earthing is a myth in India and other similar countries..
Also should have put HV isolation paths under the relays and connectors
@@trevorslab My thinking... usually HV traces are blank and well covered in solder... spacing is too small as well .... so I cant believe this one is safe... well... not for strict western regions at least
Don't the relay's provide the necessary isolation?
@@CrimsonTide001 they do, you're controlling high voltage, so you better restrain yourself from buying some cheap-ass stuff that might put your home in danger.
Great Work... Appreciated! Keep it Up!
Please...just please, have some separation between the low voltage stuff and the mains power. In your enclosure the mains terminals are almost touching the relay board.
This is horrible engineering, just horrible.
Welli love your video it is great and very informative to all
propably a stupid question perhaps, but wouln't it be better to turn the relays 180 degree? now you have the relays output circuit only mm away from the driving circuit.
Simplicity with professionalism ❤️
very nice work Sir, would love to do something similar someday.
Great vid! Nice project
Can you please make a video on following concept
Esp8266 home automation
1) which can run on dead WiFi ( without internet ) or make its own hotspot
2) having switch override option ( so my grandparents can also use lights and fans )
I implemented your old blynk server automation video which was working awesome but now my internet is dead and one problem was my grandparents wasn't able to turn on/ off devices
Yes Ans 1 . You need to try offline IP based program for non internet usages..
Ans 2. For this solution you need use two way switch in switch board for non automation usages. Because in this way both relay and Switch work simultaneously
People are complaining there are no optocouplers. There is more than enough galvanic isolation in the relay. Absolutely no need for optocouplers. It would certainly be a gimmick in this application. However, I'm not saying this is a well thought out idea. 16 remote mains switchable circuit in one place, what 16 AC appliances would you need to, 1. Plug in at one point in the home, and 2. Need them all to be remotely accessible? Also the ESP32 is massive overkill for this super simple application. Why not use an esp8266? So much cheaper! Or an arduino with a Wi-Fi chip? Or an AT tiny driving a multiplexing IC and a Wi-Fi chip?
Esp8266 doesn’t have enough GPIOs for controlling 16 relays. Secondly that rate of nodemcu and esp32 don’t have much difference
Its also worth adding, this circuit board design is not well thought out. He effectively has 16 common inputs which I don't understand. He only needs 1 AC input. I do understand the 16 outputs though. And why not build the 5V power conversion into the board? That will quickly turn into a bird's nest of wiring with 16 inputs and outputs. The other thing is, using all 16 outputs, you must keep the sum of each appliances power under 2400W in Australia, probably 1100W in USA? depending on the circuit breakers rating in the fuse box (most will trip at 10A). That's an average of 60W per output in the USA.
Graham Keep not all GPIOs are accessible in arduino ide
I have tried that
Nice and clear explanation
Great job. Thanks for sharing this 😌
This circuit is not secure at all..
You should use zener diode nd optocoupler.
It's only for temporary use.
Not to speak of the wiring in the rest of the junction box thingy...
Bro can you make me a code
@@sanb3586 yes bro.. on mqtt as well as https server. both ode can be made.
nop its not require because relay itself is isolated from ac supply.
yes it would require if you r using som solid state device like triak.
@@dharmikbhavani7272 we need optocoupler to separate the grounds of microcontroller nd relay.. bcz in any short circuit , your controller will be safe .
We also need zener diode to block reverve emf induced in the primary coil of relay
This is a great project but if I click on the link for the code I get 402 error message
please add no of pieces along with the names of components while narrating, otherwise a very god attempt , nice content overall, also if you have sponsored posts mention costs specifically the overheads like customs taxes etcetera to keep things transparent. I can see some title related comments being sparked, its just a matter of home automation being not standardise yet and hence different vision on same thing. Its just part of process. Good luck for the next one :thumbs_up:
Hi, very nice proyect, I just wanto to add the relays dont have the necessary insulation and electric shielding for this to work properly, a single diode is less than suficient, I would like suggest the use;
An insulated ouput, like the diigtal pin to a UNL2003 to avoid vcc peaks, and then a of a snubber and a varistor on each relay output.
For the sake of the electronics.
Good work !
5 volt relay how peak come
Brother, the code and circuit is not opening from your link, what should I do? Can you give me its code and circuit?
Yes brother this is a solid project
Nice work.. Will try
Nice project. But is it wise to use an external iot platform? If they pull the plug you're done. I'd advise to host your own with MySensors, Domoticz, OpenHAB, Grafana, etc. You can run all on one raspberri pi. NRF24L01 is supported by MySensors out of the box.
Thanks for the update
I’ll explore them all.
Actually I have tried mosquito mqtt server on raspberry pi but that’s only limited to local area connections
What if we want to control appliances from anywhere in the world. Then we need to use ubidots or other cloud based mqtt server
@@techiesms It is not restricted to local area networks. You can access your raspberry pi from anywhere in the world if you configure your router to use NAT. Just forward the desired ports to a local ip address and port. It is also possible to use a dynamic dns to be able to use a custom url as well.
Wonderful project sachin....thnks bro
Thank you
Hi. I love this project and I wanted to order this PCB but i saw there were about 35 errors when i do DRC check. Can i order it like that and will it work correctly. Thanks.
Waoooow
Amazingzzzz sir
Amazing ist channel to explain deeply
Very neat!!
The code seems to be removed from the link provided. Got updated link??
Thank you a big hug from Brazil.
Hey which font you are using? Please reply
Sir link to the arduino code is invalid or the code is missing, please help!
I'm thinking of using the relays to bridge button/switch connections on appliances instead of outlets.
Thus project may have more uses than you might have thought!
Nice bro. Can we use 2 mobile to control the same?
Sir pls reply me if I use ttp223 touch sensor instead of normal switches will it work? and while using ttp223 I want to use just "up and down" buttons for speed control for fan with same circuit which you have mentioned as it is best non humming kit for fan ,if possible pls send me the coding+circuit diagram for my dream project . I'll be very great full to you
do reaseach on it and diy Radhe Radhe pls be vegan animals also have lifes Radhe Radhe
Yeah, no isolation, and those relays are way too small for any real world load switching.
In reality you do not need all those relays when you can use properly rated power transistors which will reduce overall power consumption and the need for a snubber network / diode. You can in turn use the transistors to switch solid state HVAC relays which can handle real world loads like an entire lighting section, air conditioners and other moderate to high current appliances even switch your main city power on and off or between solar or generator power and mains city supply. make the system usable to a realistic degree.. Those tiny relays on board will only introduce a possible fire hazard into your home if you over load the circuit.
Modify your PCBs to have line isolation and mounting options and earthing provisions so people in countries that have actual electrical codes that are enforced can actually use it legally and safely.
Also this is in no way automation, this is simply over the net remote control and you do not need fancy apps on a smartphone to do this. a simple webserver arduino code with some HTML code in it loaded straight into an ESP module and all you need is a device that can connect to wifi and has a browser and you are in business. I can take your whole project and reduce it's size over half and make it NEC compliant for use in the US all while making it capable of controlling high current loads with no mechanical relays on the main PCB at all..
Automation would be having circuits on a timer like a sprinkler system at home or on a day/night sensor to turn lights on and off..
So show us what you can do.
@@Thuliolima2008 I myself do not have to show you when all you have to do is look up any 1st world based system that is properly installed and being used in places where electrical codes are known and enforced.. Look at the many many other IOT based systems sold under big name brands and installed in places in Canada, The USA, the UK, etc... That is what 1st world developers can do..
Perhaps you should do a bit of research before spitting on someone's work. Your point about true automation is correct, this has no brain, so to speak, and is thus not true automation. This hardware package could, however, be used for true automation with no modification, simply different code. That being said, this is where you stop being right. The transistors he is using are, in fact, correctly rated for this application. Transistor rating also has nothing to do with the snubber diode, which is designed to snub (thus the name) the back voltage produced by the relay coil turning off. Any proper circuit which uses a mechanical relay will have such a diode or equivalent protection system, changing the transistor does not eliminate the need for this. Your comment seems to indicate that the relays could he replaced by high power transistors, but that's such a ridiculous idea that I'm going to assume that's not what you meant. Maybe you meant use the high power transistors to drive a SSR, but that's unnecessary. Small transistors like the ones he has are perfectly capable of driving even very large SSRs, and actually, for the size SSRs used in home automation, the NodeMCU itself could directly drive them. As for the size issue, I don't know if you've ever seen a SSR, but they are typically larger than their mechanical counterparts. That being said, I'm sure if you went with the most expensive, modern SSRs you could find, it would be significantly smaller. It would probably also be 100x more expensive, but since you're a rich guy in the 1st world that shouldn't be an issue for you. And just FYI, most '1st world systems' use mechanical relays, snubber diodes (usually TVS), and a transistor based driver circuit very similar to the one used here.
@@back_to_momblackburn8580 use a fuckin bta-16 is probably what he meant, it isnt a transistor but the closest thing to one.
ElfNet Designs
"That is what 1st world developers can do" : You are a proud man, good for you keep up this community spirit .
This video showed you the essentials, it has all the parts to make home automation, so you can customize it (or built it to your code). I ve replicated it and it is working fine with all the automation rules (dependencies and timing) that I needed and only 8 relays (upgraded to 25A relays for AC, heaters etc.. block relays with isolation so didnt use the video circuitry) but couldnt do it without the support of such videos.
I m also working on 8 channel relay. With alexa. Hope i will complete it soon. Thanks for your video. And very clean build
Do share with me when completed
I want this product which works with alexa. Can you sell it to me. Reply 9914400388.
@@travelpedia6351 clean build? this is an engineering nightmare!
@@techiesms can you share code arduino?
In this eeprom has added? In case main power off and on again, which the switch is on will be on or not?
The switch will come back to its previous state. I have added that lines in the code don’t worry
Nice project. It's possible connect this system with Amazon Alexa?
Can i buy readymade module and from where?
The board looks amazing nice and thanks for sharing all the code and hardware files.
this board is HIGHLY dangerous. There is NO insulation from the mains side to 5V wahtsoever and traces on the PCB getting super close. This is a very very bad design that is very dangerous to use! Do not replicate this!
@@RandomUser2401 are you pcb designer
@@mewedward yes
Good afternoon sir
hmm
Hey brother can i use this setup for my house ..???
Or i have to change something???
Very nice project sir.....
can you please give us a brief explanation of how-to and where to connect from starting A from Z
Hi. nice video. Is there any Indian manufacturer for PCB Printing?
There are many
Just google it
Best explanation way
the relay are inverted.. avoid all the diodes resistor transistor with a uln2008 uln2003..
Always great job
Did you use the XOD programming?
if internet is down so we will be needing a manual switch, and what we can do to avoid short between these connection when the internet comes back online
Connection of 24×7 with electrical supply may harm the system or not .?
Most attitude man Sachin soni... He said he don't design PCB of his project but he is designing the PCB
Hello Raul Sinha Sir
Can you remind me when I said I don’t design PCBs of my project?
@@techiesms day before yesterday,
What if main current goes off.. Will it recognise nd keep those appliance on which where on before the current went off....??
Loved it..I would love to implement this at my new house
Thank you for this project. Please can you share the schematic diagram?
can't find the new pcb design
Ubidot programming to be done on Mobile Phone or on my computer?
great tutorial, but before starting I have one question, in My project I need to connect
1. 10 Small LED RGB White 5V (Planning to use PCA9685)
2. 2 DC motors 6v or 12v (Planning to use L298N)
3. 4 Stepper motor SG90 9gm ((Planning to use 2nd PCA9685)
4. Control over WIFI/Bluetooth, by Android app(which I can develop)
5. 1 Speaker with MicoSD mp3 audio in it (MAX98357A/SD car reader)
Can I use ESP32 for these all or do I have to buy other chips as well ?
If you can use arduino for it, it will work even better with esp32 because its faster and better specs. It does have a 3.3v output instead of 5v and it can only supply like 30ma instead of the like 80ma of the arduino so u might need the uln2803 chip that is a 8bit transistor array.
Sir excellent video 👌..but how can we also make the regular switches also to work with it
I also want to know how regular switches also to work with it ?????
Very cool your project friend I made one for myself and I'm using 13 equipment but I have a problem with power failure and I wanted to save the status of the pins. Would you have a video explaining how to configure this card? Thank you very much in advance
what is the best android app for iot? can we use ubidots for web and android app? or what else for free?
Awesome video 👍👍
Tell me where I buy electronic equipment sir
I would like to operate appliances with both electrical switchs and this relay ? what should we do?
Can you explain how to connect an u-blox GPS RTK module to arduino? Step by step please. That module is very accurate, up to few cm.
You should use solid state relay, because an ordinary relay can wield on contact which may cause problem
that's a one off but definitely a possible thing in places like India where people over load circuits all the time and have zero regards for safety.
Hi, please answer my question. What if the wifi password is changed? Do we have to change it in the code and upload it everytime? In that case wouldn't it be a flaw?
Is it necessary to give name Relay1 or 2 or 3....
No you can give according to your ease
why did you put a transistor in between the relay and the io pin? You could have just connected directly to the relay input (I'm from software background so I'm bit confused)
There’s no isolation; a primary safety feature that is required in the US and many other countries.
This is horrible engineering, just horrible.
Is it from anywhere?
Which online database is best for similar projects? Firebase or AWS or Ubidot or any other?
BROTHER UR IDEA IS AMAZING HOW CAN I GET THIS PCB FROM YOUR WEBSITE BY BUYING T-SHIRT AND WHAT IS THE NAME OF PCB IN WEBSITE
Sorry
It’s no more in stock
Good build. Do you know of any alternatives to ubidots ?
just out of curiosity, Is it a good idea to have High Voltage AC and Low voltage DC parts on same PCB ???
Ya it’s ok. It’s working fine
@@techiesms ok.. thank you
The name of the game is good isolation.
just separate them with enough distance, look at power supplys.
@@techiesms JESUS CHRIST just STOP. Just STOP!!! STOP giving people on the internet such dangerous advice! You obiously have NO clue about electronics! Jesus Christ simply because it works does not mean it is safe!!
Where we can get that coding??
Is it ready made available or we have to Write it own?
What channel relay should i use ??
Nice project! But if i were you, i would not put the trace that goes from the transistor collector to the relay coil that close to the relay's contacts traces! the isolation gap is minimal and there is a risk of mains voltage jumping to the low voltage circuits side! (dangerous!) Maybe you could correct that on the next revision of the board... Anyways, a really practical project!
Thank you so much for this video, I just want to know what is the maximum current rating for each relay channel, i know that the relay can handle 10A, but how much can the PCB lines hold?
Very nice job. But can i add RF receiver or buttuns input to manual controle switches if there is no internet?
Thank you :)
we get lot of problems by using es8266 like network connection problems and voltage problem. By using the es32 can we eliminate that problems
Exactly. With way more GPIOs accessible the Nodemcu
If you had connected the hand switch, it would have been better, I mean, you can control the lamp from the internet or the hand switch
Hi post something which works through wifi without internet or bluetooth. Waiting for that. Thank you very much.
What is the code for all on ..it should be able to on all in one time from one button..and than u can choose... because some time if u are in hurry and u want everything on so what u will do
amazing video bro! please tell us how to automate 3 phase 15 hp submersible pump using nodemcu ? Im confused about which relay should I use!
Can using the attachment contactor
You're project not bad but there is no timer to set the time for realy on and off. To add a timer on you're project .
That we can do on the ubidots server only. We don’t need to change the hardware or the code
Timer control operation are possible IN This project with same arduino code and hardware with little changes on ubidots server
@@techiesms
Cool