As usual, perfectly explained, with simple, understandable words, cool voice and pace, organized demonstration, and more. You are a real "Master, not only in electronics, but also in communication. Thanks.
This is excellent, and I appreciate you bringing the IOT relay for AC power at the end, to my attention. I had kind of assumed such a thing existed, and now its clear it does and I can easily and safely make use of it.
Bill, A year or so back I watched a RUclips video by Robojax where he showed how to control an AC load device that he cut the power cord on and wired directly to the AC wall outlet and to the relay module controlled by the Arduino. Your video just vastly expanded my understanding of relays and the fact that I was using a relay module with additional circuitry. Thank you for that. This video was very good.
Thank you. Thank you thank you. From the bottom of my heart. I'm a chemical engineer dabbling in the electricity realm, and you're a lifesaver. I will say, no need to throw shade (pun intended) at the lamp at the end. We're all a little ugly :)
@@bradandsusan96 Only partly, considering my DIY skills it is surprising that I haven't electrocuted myself. But have had a few shocks off an electric fence, (5kV but only a few mA), and it's not an experience that you'd readily seek to repeat.
Also, the flyback diodes do not "block the emf", they allow the current through the coil they are connected across to (temporarily) continue flowing when power is disconnected, preventing a large emf from being produced across them in the first place.
@@flickmew99 Yes, the energy stored in the magnetic field of the coil (because of its inductance) is dissipated as heat due to the resistance of the coil and diode themselves (because they are non-ideal), and the resistance of the traces which connect them.
Speaking of safety... Those type A mains plugs are a joke when it comes to safety. Yes, I'm from Sweden and we use a plug (Type C round and flat, Type F CEE7/4 and Type E/F )that connects to mains earth before Neutral or Live if they ain't grounded the pins are isolated so it's near impossible to touch a live wire when plugging it in.
Thanks for introducing me to the IoT Relay. I built a homemade device similar to this. I use it with my computer usb port to turn off 120vac devices when I shut the computer off. I will be replacing my homemade unit with the IoT Relay.
very responsibly tutorials sir.. safety is number one... btw is that possible if i made a fuzzy logic to control an alternating current fans? .. I think to make it as my final project in college. thanks in advance
Hi Sir Bill / @DroneBot Workshop, I just finished watching it and Thank You! so much for your well-explained and very detailed tutorial - I love it! Your video tutorials are very big help for those people who want to learn or pursue a career in robotics. I do appreciate your effort in making this tutorial and keep up your very good work! I am from Philipines by the way :)
Just a heads up when buying solid state relays, stay away from the Fotek brand. I had a 40 amp Fotek hooked to an electric heater for period of a few months. One day I could smell plastic burning, It was the Fotek, It was melted. Luckily it was in a proper aluminum enclosure and no harm was done. This was only a 10 amp load with a good heatsink with thermal compound. I took the relay apart and found it had only a 12 amp triac inside. I guess the Chinese have counter-fitted some of these Fotek relays, If you do get a Fotek make sure it is made in Tiawan and not China. I personally replaced the faulty relay with an American made Opto22 25 amp relay that does not get hot at all. It is also wise to de-rate any solid state relay by 50% or more for a more reliable unit. As Bill says "BE SAFE".
Have you done a series on how to build your own iot controllers to make your own smart home? Lights, interior and exterior, cameras of the wifi variety that allow you to see in and outside your house while you are away from home, and door/window alarms that notify you of potential break ins. Please excuse the security mindset, many years of Military service, so these are the first steps I'm aiming to accomplish in my father's home.
U.S. Electrical codes require ground fault circuit interrupters on outdoor circuits and other circuits where water is used as in kitchens, bathrooms, and garages. If isolation transformers were required they would have to be big and heavy and expensive to power 20 amp circuits !
An idea I had once for making a ln AC switching device was to build some sort of box where the relays are contained inside and what comes out of the outputs are female outlet plugs. On the power input side, definitely add a circuit breaker, ideally with GFCI, assuming you properly grounded your setup.
As far as I know, in the US, we require ground fault interrupt devices in bathrooms, not isolation transformers. But the transformer is a good idea for the shop.
I think maybe you were reading the peak to peak for the transformer and expecting the RMS value instead. It's been a while but I think RMS is equal to p-p value multiplied by .707 which would have gotten about 25 volts RMS
Guys I'm very sure that it's understandable .. but I absulotly know nothing about Ac and Dc .. where do I start from? Braaa.. I'm asking questions like what is a diod ? I really want to get into these stuff Edit :I searched that .. and it turned out it's actually pretty easy 🙂🙃
Bill, thank you for this wonderful video! You did a great job covering safety and interfacing. Now you need to show a project working with tubes! LOL! Of course, if you could do that and show how to to it _safely_, it could be quite interesting. Thank you for making such interesting & educational videos. (Just curious: Will you be returning to your robot project in the future? Or drones?)
Great video, I am glad somebody is stressing safety and doing things the right way. I have seen too many videos that have Stressed safety, but do things in a very Unsafe manner. One of which suggested using a 10 amp relay to control a 15 amp DC circuit. Not very safe. Two and to your suggestions, not all relays are created equal. I have seen some very bad Designs, from companies that are highly respected in the open source community. As a result I am Suspicious of everything That they design. Things to look for, isolation slots between the high and low voltage side of the components. The low-voltage control components Should not go beyond this isolation slot. The ground plane should not go beyond the isolation slot. The spacing between the high-voltage contacts conductors should be as wide as possible without affecting the current capacity. This is to help prevent arking. Also: pay attention to the specifications of the relay. Do not exceed the specifications. In fact a cushion of about 25% under the current specifications should be Adhered to. Remember, the relay may be rated at 10 A, but nothing else has been Certified for that rating. Also: the tip for you and others when using a isolation transformer. The ground is normally connected to the earth ground. Not isolated. To fix this use a GFI, connect the ground lead to the isolated neutral side of the plug. The GFI will work properly and be fully isolated. Keep up the good work, looking forward to your next video. Stay safe.
Bill, will you supply the part number for the isolation transformer? *2* *Thumbs-Up!* Here's the device that was shown around 38:00 minutes. dlidirect.com/products/iot-power-relay
Very helpful & informative. I would like to see a video on how to control a high voltage heating element with the Arduino. Maybe auto adjusting using a thermocouple. PWM not PID.
I looked through the comments and didn't see this one, so here goes. My memory from when I did this sort of stuff for a living (1970s) was that the open output voltage of transformers was always high as you found. This was so that when the transformer was used at its full power rating, the output voltage did not pull down to below the rated secondary voltage. The pull down is due to the I x R losses across the transformer secondary.
Awesome video! I've been contemplating trying my Arduino on AC devices and have been pretty nervous. These IOT relays seem kind of hard to come by though, are there any cheaper than 60 bucks??
I really enjoy the thorough explanation and demonstrations with multiple components/setups. Great vid, if there were a double thumbs up i would click it
4 года назад+2
I love the way you explain things. It's very clear and comprehensive.
Hi Bill, I wonder if you could add an (affiliate) link to the IoT relay. This way we could support the channel, and save time searching on amazon. For both US and Europe. Thanks.
Hi , see your videos and so great, I'm willing to make an IoT base project for the pH and TDS monitoring and controlling SCADA, can you give the little help for that because I'm a beginner for this pH n TDS data + controlling relays(I2C) ==> Arduino (I2C or USB)==> Rpi 4 with 7Inch HMI touch for local monitoring (Internet)==> web or app monitoring world Wide major requirement == how to make a SCADA and connect the data to web or app
An isolation transformer for bathroom circuits? NEC requires GFCI outlets but not a transformer. Don't know the codes in Europe, and suspect that Canadian codes are aligned with the NEC (they were when I was growing up in Dorval in the '70s). Otherwise, very good video.
Working on a SSR ATS Arduino driven. Having problem with grid and inverter connecting and blowing up inverter. Either my code or cheap SSRs or both. Need a better explanation on Zero Cross.
This is great thanks. I was thinking about trying something like this, using the Arduino 4 relay shield, but when I looked closer it seemed that it is designed with relays for DC not AC. Can you advise, are there two kinds of relays, which are different, one type for AC and one type for DC? Thx
Sorry, programmer here, again. The 'sizeof' the array should be used instead of a separate constant. Separating these can lead to errors. Good video though. (Programming (for Boeing) is my job).
@rigoagui Be very careful about trolling on this channel, or you won't be on here very long. And if you are talking about the MAX, technically, yes. I don't work with commercial aircraft and it was also well before my time. Boeing has restructured to make sure that never happens again. The underlying cause was corporate chimps.
My brother was a subscriber to your channel. He died a few days ago. From electrocution. We found him dead on his tinkering bench with this RUclips video on his laptop. Either your instructions weren't clear or he accidentally touched a live wire.
We would love if you make a video on how to make a proper optically isolated relay module explaining the circuitry and the reason behind choosing the equipments of such and such value. This video was very helpful.😀
Nice video... I am working on a project of mutual induction using two coils. The source is a signal generator. am trying to figure out how to control the switching on and off of the primary coil using arduino uno. Which device might work well in this situation?
One thing I learned from this video is the word "scads". I've never heard that term used in the UK, so I might see if I can start a trend over here. To be effective, I may need to involve scads of people though.
My grandfather came from over 2 then he worked as a electrician And his brother worked in Ohio and he was the 1st African American certified or licensed electrician My grandfather then had my Uncle Was electrical engineer and my dad said general content
So what do I do make circuit boards and play with a CND C and computers in robots and archimenos and raspberry pies Plus I live in Minnesota so Maguire or 2
To continue, thus it is not always a good idea to use just any old transformer that is plenty big enough, the transformer should be sized for the planned load in real designs.
Did you all notice guys, how Bill makes his presentations so interesting that u get glued to the channel...till he says " goodbye for now"...Excellent job Bill. I must admit that the voice modulation of Bill is one of the best I hve heard on youtube, or rather, de facto the best. The subject, topic, cautions, content, delivery, camera management, focus, details....well..u name it and it is here. Apart from teaching electronics, you are probably also teaching a thing or two to all those in teaching and tutorial business. Thanks Bill and keep it up. I wait for your videos. Regards
You are right. IMHO even the non native speakers understand every single word :) Just great stuff in every aspect ! I wonder how much time does Bill spend preparing for a single workshop lesson.
⚠⚠⚠ 11:20 the isolation transformer is not a good idea because you also isolate the circuit breaker that protect that circuit. If there is a problem with anything after the transformer you won’t be protected.
I have a question regarding solid-state relays, some background first, where I live the power supply is 320-340V AC / Ex Euro nation - Anyways, when using a solid-state relay with any LED bulb the bulb either flickers or stays on whilst the relay is in "off" mode, in on mode there are no problems, the same effect almost with a short 240V red LED strip I put through the relay when I turn on the relay channel for the LED strip the strip goes on but is super super dim like the relay is sucking the power.
Hi! Thank you so much for a very nice video! I was woundering if you know any websites I can buy an IoT control relay which is certified in Europe? I don´t find any which is similar to the one you show on the video. Thanks!
About the isolation transformer at 12 minutes: bathrooms no longer have those. That was like 1970s and earlier. Modern ones have the full 15A in a bathroom but the circuit must be GFCI protected.
330/5000 Hello, greetings and congratulations on your channel. Since you know almost everything, could you tell me how to record a microcontroller from the 8051 family, the Atnel At89C5115, with an arduino, without disconnecting it from my application circuit? What pins do I need to use and how can I save a .HEX file from Arduino. Thank you very much
Let me congratulate from Lima-Peru, I am chemist and try to know more about Arduino and control optoisolated relays... great information and very well explained... thxs.
IOT Relay "Certified" Another excellent video. BTW, I looked at the IOT relay shown in this video and could NOT find anywhere that it's "certified". I went to dlidirect.com/products/iot-power-relay and could not find any mention of certification. I also saw that this question was asked on the Amazon site for the relay and the answer was "it is NOT certified". If this is truly certified can you tell us where that information is? Thanks.
DroneBot Workshop is more addictive than meth. I know I shouldn't be doing it in the evening as my brain then just keeps me awake with all sorts of new ideas, but I just can't help myself. It absolutely destroys my sleeping rythm and I love it for it.
Hello Sir, I'm using similar circuitry with yours, a push button assigned to an interrupt, a de-bounce timer, and an output pin to drive electric school bells on 220v mains, for few seconds, using a 1 channel optocoupled relay, on a test bench, i connect the relay to drive a 12v buzzer, and it was working perfect.. but on implementation, every time i connect the common relay leg with 220v mains, sometimes the interupt trigered without touching the input button, and when running sometimes the arduino resets, i even tried using secondary power supply for the relay, activated internal pulls up resistor on pin, do you ever have any experience on this kind of problem or maybe solutions ? thanks in advance
In America, we don't use transformers for bathroom power. The last thing I would want in my house would be another 4 noisy transformers in the walls. The only thing different between an "isolated" transformer and others is no common ground. Might want to add some debounce in that circuit.
11 minutes in, this is really neat: one of the leads for my multimeter recently broke. Wanted to replace the lead; found it'd be cheaper to buy a new $10 unit. So, I bought two, in case one fails again; they arrived yesterday. So it's REALLY neat to see, the very next day, your demonstration of USING two multimeters for a project! :) I'm prepared, or at least, a little bit more. :)
Bill a commonly obtainable step down transformer is an old style door bell transformer. They are listed and one side either has a short pigtail power cord with a plug for 115-120 v and the other side has a screw terminal 2 screws for a nominal 24 V AC outlet
As usual, perfectly explained, with simple, understandable words, cool voice and pace, organized demonstration, and more. You are a real "Master, not only in electronics, but also in communication. Thanks.
liked that "we are in an 'alternating' universe now" intro.
Sorry, programmer here. Error in relay code. You are not using the 'thresholdPoint' constant in your activation code.
This is excellent, and I appreciate you bringing the IOT relay for AC power at the end, to my attention. I had kind of assumed such a thing existed, and now its clear it does and I can easily and safely make use of it.
Bill,
A year or so back I watched a RUclips video by Robojax where he showed how to control an AC load device that he cut the power cord on and wired directly to the AC wall outlet and to the relay module controlled by the Arduino. Your video just vastly expanded my understanding of relays and the fact that I was using a relay module with additional circuitry. Thank you for that. This video was very good.
"...and as the Arduino is a microcontroller, we're going to use it to control things."
This made my day : )
Thank you. Thank you thank you. From the bottom of my heart. I'm a chemical engineer dabbling in the electricity realm, and you're a lifesaver. I will say, no need to throw shade (pun intended) at the lamp at the end. We're all a little ugly :)
Fantastic video! Incredibly well structured and informative. Thank you very much!
“The blink sketch on steroids...” LOL!
Your videos are simply the best.
Signs often placed near high voltage installations, "Not only will this kill you, it will hurt the whole time you are dying"
Are you speaking from experience??
Not the dead part obviously.
I've had the crap knock out of me a few times.
Good day and God bless
@@bradandsusan96 Only partly, considering my DIY skills it is surprising that I haven't electrocuted myself. But have had a few shocks off an electric fence, (5kV but only a few mA), and it's not an experience that you'd readily seek to repeat.
Also, the flyback diodes do not "block the emf", they allow the current through the coil they are connected across to (temporarily) continue flowing when power is disconnected, preventing a large emf from being produced across them in the first place.
I'm still wondering when the flyback diodes circulate around the current until it disappear, is the energy converted into heat or what ?
@@flickmew99 Yes, the energy stored in the magnetic field of the coil (because of its inductance) is dissipated as heat due to the resistance of the coil and diode themselves (because they are non-ideal), and the resistance of the traces which connect them.
the multiple reminder about "safety first" deserves many thumbs up
Speaking of safety... Those type A mains plugs are a joke when it comes to safety.
Yes, I'm from Sweden and we use a plug (Type C round and flat, Type F CEE7/4 and Type E/F )that connects to mains earth before Neutral or Live if they ain't grounded the pins are isolated so it's near impossible to touch a live wire when plugging it in.
Thanks for introducing me to the IoT Relay. I built a homemade device similar to this. I use it with my computer usb port to turn off 120vac devices when I shut the computer off. I will be replacing my homemade unit with the IoT Relay.
very responsibly tutorials sir.. safety is number one... btw is that possible if i made a fuzzy logic to control an alternating current fans? .. I think to make it as my final project in college. thanks in advance
Thank You! You have been bringing joy to my life with your videos consistently. 👍🏻💅🏻💅🏻💅🏻💅🏻💅🏻💅🏻💅🏻💅🏻💅🏻
Hi Sir Bill / @DroneBot Workshop,
I just finished watching it and Thank You! so much for your well-explained and very detailed tutorial - I love it!
Your video tutorials are very big help for those people who want to learn or pursue a career in robotics.
I do appreciate your effort in making this tutorial and keep up your very good work!
I am from Philipines by the way :)
I'm so ready to learn the AC dimming. Love your vids!
Thank you, you somehow guess what Arduino projects i want to learn about and now I have great reference information and tutorials now.
Just a heads up when buying solid state relays, stay away from the Fotek brand.
I had a 40 amp Fotek hooked to an electric heater for period of a few months. One day I could smell plastic burning, It was the Fotek, It was melted.
Luckily it was in a proper aluminum enclosure and no harm was done. This was only a 10 amp load with a good heatsink with thermal compound.
I took the relay apart and found it had only a 12 amp triac inside. I guess the Chinese have counter-fitted some of these Fotek relays, If you do get a Fotek
make sure it is made in Tiawan and not China. I personally replaced the faulty relay with an American made Opto22 25 amp relay that does not get hot at all.
It is also wise to de-rate any solid state relay by 50% or more for a more reliable unit. As Bill says "BE SAFE".
Lots of fakes around... use at a current much lower than specified (50-60%)
Have you done a series on how to build your own iot controllers to make your own smart home? Lights, interior and exterior, cameras of the wifi variety that allow you to see in and outside your house while you are away from home, and door/window alarms that notify you of potential break ins. Please excuse the security mindset, many years of Military service, so these are the first steps I'm aiming to accomplish in my father's home.
A good solution also is to use 433MHz remote plug with a 433MHz module for arduino...
U.S. Electrical codes require ground fault circuit interrupters on outdoor circuits and other circuits where water is used as in kitchens, bathrooms, and garages.
If isolation transformers were required they would have to be big and heavy and expensive to power 20 amp circuits !
Quick FYI. We're 100 volt in Japan. Adding to the fun, 50hz eastern Japan (Tokyo), 60hz western Japan (Osaka).
An idea I had once for making a ln AC switching device was to build some sort of box where the relays are contained inside and what comes out of the outputs are female outlet plugs. On the power input side, definitely add a circuit breaker, ideally with GFCI, assuming you properly grounded your setup.
Great video as always, Bill. Exactly what I was looking for. Thank you!
Thank you for the great video more inspiration for home projects
As far as I know, in the US, we require ground fault interrupt devices in bathrooms, not isolation transformers.
But the transformer is a good idea for the shop.
good advice, may I check if you need some display applied?
Helpful video. I liked it
I think maybe you were reading the peak to peak for the transformer and expecting the RMS value instead. It's been a while but I think RMS is equal to p-p value multiplied by .707 which would have gotten about 25 volts RMS
Guys I'm very sure that it's understandable .. but I absulotly know nothing about Ac and Dc .. where do I start from?
Braaa.. I'm asking questions like what is a diod ? I really want to get into these stuff
Edit :I searched that .. and it turned out it's actually pretty easy 🙂🙃
Bill, thank you for this wonderful video! You did a great job covering safety and interfacing. Now you need to show a project working with tubes! LOL! Of course, if you could do that and show how to to it _safely_, it could be quite interesting.
Thank you for making such interesting & educational videos. (Just curious: Will you be returning to your robot project in the future? Or drones?)
Another great video. Thanks!
Can you make a video to make a video to make SSR? Or a circuit board using TRIAC to be controlled via ESP32/Arduino.
Can you please make videos on dimming the AC devices with an Arduino
Please
great video as always! Thanks a million!
I learned more here than 2 in years of school
Great video, I am glad somebody is stressing safety and doing things the right way. I have seen too many videos that have Stressed safety, but do things in a very Unsafe manner. One of which suggested using a 10 amp relay to control a 15 amp DC circuit. Not very safe.
Two and to your suggestions, not all relays are created equal. I have seen some very bad Designs, from companies that are highly respected in the open source community. As a result I am Suspicious of everything That they design.
Things to look for,
isolation slots between the high and low voltage side of the components.
The low-voltage control components Should not go beyond this isolation slot.
The ground plane should not go beyond the isolation slot.
The spacing between the high-voltage contacts conductors should be as wide as possible without affecting the current capacity. This is to help prevent arking.
Also: pay attention to the specifications of the relay. Do not exceed the specifications. In fact a cushion of about 25% under the current specifications should be Adhered to. Remember, the relay may be rated at 10 A, but nothing else has been Certified for that rating.
Also: the tip for you and others when using a isolation transformer. The ground is normally connected to the earth ground. Not isolated. To fix this use a GFI, connect the ground lead to the isolated neutral side of the plug. The GFI will work properly and be fully isolated.
Keep up the good work, looking forward to your next video. Stay safe.
Bill what I’ve really appreciated was you calling us your Friends!! Really felt like I’m your friend!
I’m surprised you did not mention using arc suppression to protect mechanical relay contacts.
Bill, will you supply the part number for the isolation transformer? *2* *Thumbs-Up!*
Here's the device that was shown around 38:00 minutes.
dlidirect.com/products/iot-power-relay
Very helpful & informative. I would like to see a video on how to control a high voltage heating element with the Arduino. Maybe auto adjusting using a thermocouple. PWM not PID.
I looked through the comments and didn't see this one, so here goes. My memory from when I did this sort of stuff for a living (1970s) was that the open output voltage of transformers was always high as you found. This was so that when the transformer was used at its full power rating, the output voltage did not pull down to below the rated secondary voltage. The pull down is due to the I x R losses across the transformer secondary.
Csn you explain the process how you make your wonderful videos - what editing software you use, process.....
Awesome video! I've been contemplating trying my Arduino on AC devices and have been pretty nervous.
These IOT relays seem kind of hard to come by though, are there any cheaper than 60 bucks??
You should make a video for the esp32 working with relays over bluetooth control and wifi I would watch that video to
Great vídeo. Excelente chanel. from Brazil , thanks a lot
I enjoy learning from you and watching your FANTASTIC videos. I wish I had you as a teacher in college. A++
I really enjoy the thorough explanation and demonstrations with multiple components/setups. Great vid, if there were a double thumbs up i would click it
I love the way you explain things. It's very clear and comprehensive.
Wii you be going back the the DB1 build at any time soon. Can you tale us want
Hi Bill, I wonder if you could add an (affiliate) link to the IoT relay. This way we could support the channel, and save time searching on amazon. For both US and Europe. Thanks.
Hi , see your videos and so great,
I'm willing to make an IoT base project for the pH and TDS monitoring and controlling SCADA, can you give the little help for that because I'm a beginner for this
pH n TDS data + controlling relays(I2C) ==> Arduino (I2C or USB)==> Rpi 4 with 7Inch HMI touch for local monitoring (Internet)==> web or app monitoring world Wide
major requirement == how to make a SCADA and connect the data to web or app
Very good! 🙂👍🏴
An isolation transformer for bathroom circuits? NEC requires GFCI outlets but not a transformer. Don't know the codes in Europe, and suspect that Canadian codes are aligned with the NEC (they were when I was growing up in Dorval in the '70s).
Otherwise, very good video.
Working on a SSR ATS Arduino driven. Having problem with grid and inverter connecting and blowing up inverter. Either my code or cheap SSRs or both. Need a better explanation on Zero Cross.
This is great thanks. I was thinking about trying something like this, using the Arduino 4 relay shield, but when I looked closer it seemed that it is designed with relays for DC not AC. Can you advise, are there two kinds of relays, which are different, one type for AC and one type for DC? Thx
Sorry, programmer here, again. The 'sizeof' the array should be used instead of a separate constant. Separating these can lead to errors. Good video though. (Programming (for Boeing) is my job).
@rigoagui Be very careful about trolling on this channel, or you won't be on here very long. And if you are talking about the MAX, technically, yes. I don't work with commercial aircraft and it was also well before my time. Boeing has restructured to make sure that never happens again. The underlying cause was corporate chimps.
I need to reduce household ac voltage (110/115) to 12 VAC and at least 2.5 amps, Can I do that with Arduino? Thanks
SSR's are very useful noob friendly devices. Just remember that it usually iies about the current rating, and also requires heatsinking.
My brother was a subscriber to your channel.
He died a few days ago. From electrocution. We found him dead on his tinkering bench with this RUclips video on his laptop.
Either your instructions weren't clear or he accidentally touched a live wire.
We would love if you make a video on how to make a proper optically isolated relay module explaining the circuitry and the reason behind choosing the equipments of such and such value. This video was very helpful.😀
It’s also about trace isolation including PCB cutouts.
@@michaelgraff6978 Yup!
Where can I find one of these IoT relays? My initial research has yielded nothing but "SOLD OUT" options.
What 4 channel ssr were you using for the 4 lights on a potentiometer?
Nice video...
I am working on a project of mutual induction using two coils. The source is a signal generator. am trying to figure out how to control the switching on and off of the primary coil using arduino uno. Which device might work well in this situation?
One thing I learned from this video is the word "scads". I've never heard that term used in the UK, so I might see if I can start a trend over here. To be effective, I may need to involve scads of people though.
Can a guy use this to power a model 500 Bell ringer? My understanding is it needs 70Vac and about 20hz.
as alwayz. great vidéo
Top notch education!!! Your teaching style reminds me of attending ITT
thanks you so much for all the work you put into making such an awesome video !! Its really appreciated :)
My grandfather came from over 2 then he worked as a electrician And his brother worked in Ohio and he was the 1st African American certified or licensed electrician My grandfather then had my Uncle Was electrical engineer and my dad said general content
So what do I do make circuit boards and play with a CND C and computers in robots and archimenos and raspberry pies Plus I live in Minnesota so Maguire or 2
Great Scott took one of those relays apart, the components where only rated 16 amps. Use Chinese crap at your own risk.
Great video as always! I have been researching a way to control my pool pumps with an Arduino. Going to do more research on the IoT module you showed.
To continue, thus it is not always a good idea to use just any old transformer that is plenty big enough, the transformer should be sized for the planned load in real designs.
Did you all notice guys, how Bill makes his presentations so interesting that u get glued to the channel...till he says " goodbye for now"...Excellent job Bill. I must admit that the voice modulation of Bill is one of the best I hve heard on youtube, or rather, de facto the best. The subject, topic, cautions, content, delivery, camera management, focus, details....well..u name it and it is here. Apart from teaching electronics, you are probably also teaching a thing or two to all those in teaching and tutorial business. Thanks Bill and keep it up. I wait for your videos. Regards
You are right. IMHO even the non native speakers understand every single word :) Just great stuff in every aspect ! I wonder how much time does Bill spend preparing for a single workshop lesson.
Good lecture, I want to know how to connect my electric motor with the relay and using rf to control it. Thank you.
Very nice video,great professor
⚠⚠⚠ 11:20 the isolation transformer is not a good idea because you also isolate the circuit breaker that protect that circuit. If there is a problem with anything after the transformer you won’t be protected.
SIMPLE RELAY 5VOLT BATTERY ON OFF....PUSHED PULLED...
plz continue building a real robot series plzplzplzplz plz plz plz plzplz plz plz plz plz plz plz plz plz plz
why arduino crash when switching ac devices? how can i solve it?
I have a question regarding solid-state relays, some background first, where I live the power supply is 320-340V AC / Ex Euro nation - Anyways, when using a solid-state relay with any LED bulb the bulb either flickers or stays on whilst the relay is in "off" mode, in on mode there are no problems, the same effect almost with a short 240V red LED strip I put through the relay when I turn on the relay channel for the LED strip the strip goes on but is super super dim like the relay is sucking the power.
So nice
Hi!
Thank you so much for a very nice video! I was woundering if you know any websites I can buy an IoT control relay which is certified in Europe? I don´t find any which is similar to the one you show on the video.
Thanks!
About the isolation transformer at 12 minutes: bathrooms no longer have those. That was like 1970s and earlier. Modern ones have the full 15A in a bathroom but the circuit must be GFCI protected.
330/5000
Hello, greetings and congratulations on your channel. Since you know almost everything, could you tell me how to record a microcontroller from the 8051 family, the Atnel At89C5115, with an arduino, without disconnecting it from my application circuit? What pins do I need to use and how can I save a .HEX file from Arduino. Thank you very much
Let me congratulate from Lima-Peru, I am chemist and try to know more about Arduino and control optoisolated relays... great information and very well explained... thxs.
I have a bunch of kmcs I got before I got into programming.
IOT Relay "Certified"
Another excellent video.
BTW, I looked at the IOT relay shown in this video and could NOT find anywhere that it's "certified". I went to dlidirect.com/products/iot-power-relay and could not find any mention of certification. I also saw that this question was asked on the Amazon site for the relay and the answer was "it is NOT certified".
If this is truly certified can you tell us where that information is?
Thanks.
DroneBot Workshop is more addictive than meth. I know I shouldn't be doing it in the evening as my brain then just keeps me awake with all sorts of new ideas, but I just can't help myself. It absolutely destroys my sleeping rythm and I love it for it.
I can't believe I've only just discovered your channel. This is top-notch material.
Like & Sub well earned
Thanks
Just stumbled on your channel. Love your emphasis on safety. "a very ugly lamp" cracked me up. 😂
The lamp is rather ugly, but your tutorial is beautiful. Thank you Mr from the DroneBot Workshop. I wish you a happy and long life.
Hello Sir, I'm using similar circuitry with yours, a push button assigned to an interrupt, a de-bounce timer, and an output pin to drive electric school bells on 220v mains, for few seconds, using a 1 channel optocoupled relay, on a test bench, i connect the relay to drive a 12v buzzer, and it was working perfect.. but on implementation, every time i connect the common relay leg with 220v mains, sometimes the interupt trigered without touching the input button, and when running sometimes the arduino resets, i even tried using secondary power supply for the relay, activated internal pulls up resistor on pin, do you ever have any experience on this kind of problem or maybe solutions ? thanks in advance
In America, we don't use transformers for bathroom power. The last thing I would want in my house would be another 4 noisy transformers in the walls. The only thing different between an "isolated" transformer and others is no common ground. Might want to add some debounce in that circuit.
Can you please make video about ESP8266? Your video is really helpful when learning the electronic.
11 minutes in, this is really neat: one of the leads for my multimeter recently broke. Wanted to replace the lead; found it'd be cheaper to buy a new $10 unit. So, I bought two, in case one fails again; they arrived yesterday. So it's REALLY neat to see, the very next day, your demonstration of USING two multimeters for a project! :) I'm prepared, or at least, a little bit more. :)
Bill a commonly obtainable step down transformer is an old style door bell transformer. They are listed and one side either has a short pigtail power cord with a plug for 115-120 v and the other side has a screw terminal 2 screws for a nominal 24 V AC outlet