the multiple reminder about "safety first" deserves many thumbs up
@n0madfernan2573 жыл бұрын
liked that "we are in an 'alternating' universe now" intro.
@abegafouda91363 жыл бұрын
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.
@sbsarkar56593 жыл бұрын
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
@subbielover93743 жыл бұрын
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.
@Danielddiniz3 жыл бұрын
Bill what I’ve really appreciated was you calling us your Friends!! Really felt like I’m your friend!
@caffeinatedinsanity23243 жыл бұрын
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.
@intellisound3 жыл бұрын
“The blink sketch on steroids...” LOL! Your videos are simply the best.
@0ptixs Жыл бұрын
Man, this is the exact video I needed. I understand very generally how electricity works, I don't need someone to explain it again to me. I just need the different methods of switching ac power safely. I cannot wait to see what other videos you have to offer sir! Thank you
@JonathanDeWitt19883 жыл бұрын
Bill, A year or so back I watched a KZfaq 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.
@KeithBofaptos3 жыл бұрын
I'm so ready to learn the AC dimming. Love your vids!
@crossbound2 жыл бұрын
I am just getting started with Arduino and this photo resistor and relay demo enabled me to create a timer switch for my christmas lights. They turn on when it gets dark outside and stay on for 6 hours, after turning off they want turn on until the next sunset. Thank you very much for your fantastic videos.
@MsThekiller022 жыл бұрын
Wow! This is exactly my usecase too! I watched this video entirely for that purpose!
@cuper42952 жыл бұрын
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.
@stevenlightfoot64799 ай бұрын
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.
@johnpaulpineda98213 жыл бұрын
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 :)
3 жыл бұрын
I love the way you explain things. It's very clear and comprehensive.
@alexsere3061 Жыл бұрын
Hi sir, I am doing a bachelor's in a technical university, and for a project we decided to make a microcontroller-controlled heater. This video was crucial in the project, thanks for the safety tips and attention to detail.
@keeleyhoek3 жыл бұрын
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.
@flickmew992 жыл бұрын
I'm still wondering when the flyback diodes circulate around the current until it disappear, is the energy converted into heat or what ?
@keeleyhoek2 жыл бұрын
@@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.
@lollllloro2 жыл бұрын
"...and as the Arduino is a microcontroller, we're going to use it to control things." This made my day : )
@horus23693 жыл бұрын
Top notch education!!! Your teaching style reminds me of attending ITT
@axelBr13 жыл бұрын
Signs often placed near high voltage installations, "Not only will this kill you, it will hurt the whole time you are dying"
@bradandsusan963 жыл бұрын
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
@axelBr13 жыл бұрын
@@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.
@justbeeeb20613 жыл бұрын
Thank You! You have been bringing joy to my life with your videos consistently. 👍🏻💅🏻💅🏻💅🏻💅🏻💅🏻💅🏻💅🏻💅🏻💅🏻
@kennethbeal2 жыл бұрын
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. :)
@toolooselowtrek75234 ай бұрын
Emphasis on safety much appreciated!
@paultakoy70912 жыл бұрын
Great video as always, Bill. Exactly what I was looking for. Thank you!
@MrJohnnaz3 жыл бұрын
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".
@rondlh203 жыл бұрын
Lots of fakes around... use at a current much lower than specified (50-60%)
@Danteelias082 жыл бұрын
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.
@shaunogrady6887 Жыл бұрын
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
@willozfam6 ай бұрын
Just stumbled on your channel. Love your emphasis on safety. "a very ugly lamp" cracked me up. 😂
@gpTeacher3 жыл бұрын
Fantastic video! Incredibly well structured and informative. Thank you very much!
@hanzotv311 ай бұрын
Your voice is soothing as a learning narrator... So I subscribe. 😅
@lalitac3 жыл бұрын
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.😀
@michaelgraff69783 жыл бұрын
It’s also about trace isolation including PCB cutouts.
@lalitac3 жыл бұрын
@@michaelgraff6978 Yup!
@carlos20043 жыл бұрын
i like that new recording set up with only one camera; feels more natural. i really like the relay modules. they're super easy to use and control. since they're relays, they can be used for pretty much anything. for example, i needed to build a sound input selector, and all i had on hand was a double relay module which worked well. then i needed to control my room's light/fan, and again, i used the double relay module. i also had to use a relay (not a module, simply the components that came with the arduino kit) because it was my audio preamp and it had to be electrically isolated from the arduino circuit or else it would hum. what's more, i even found some tiny relays that are perfect for audio since they are tiny and are dpdt which is perfect for stereo audio. also a tip, just stick with the 5v relay module since if going for the 12v versions, you will still need to run 5v from the arduino or else the relay module will expect a 12v signal which the arduino can not provide in the output pins.
@Peterkringle Жыл бұрын
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 :)
@ericmwiggins3 жыл бұрын
I enjoy learning from you and watching your FANTASTIC videos. I wish I had you as a teacher in college. A++
@joaopedrokorzeniewski65303 жыл бұрын
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.
@petermenningen3382 жыл бұрын
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
@newburypi3 жыл бұрын
Great video Bill, but I would be remiss if I did not mention a few concerns I have regarding care around mains power. The isolation transformer will offer a layer of protection, but will not eliminate the risk of a 120 volt shock, and the step down transformer assembly you are using is unlikely an approved mains device. It should (minimally) be enclosed, thus blocking fingers from contacting the transformer primary. The concern over these hazards comes from my years of accidentally contacting mains voltages and surviving. As a teenager I survived contact with a 250 volt B supply on an old tube radio. I say survived because I have been one of the lucky ones, and my survival has enabled me to learn respect for electrical power. Anyone wishing to get a start in mains power control should stick with devices like the IOT power bar. At least until they can get certified training.
@ReelSpider2 жыл бұрын
U.S. 120 volts generally wont injure a person who is able bodied and not restrained. I have been hit over 1000 times in my life as an electrician. Line voltage, 240 and up can, and did kill my uncle, a young electrician. Europeans use 240 volt at lower amperage, so I'm not really sure the electrical potential of their system.
@newburypi2 жыл бұрын
@@ReelSpider just took a quick look to verify, but it seems that you can pull as much as 13 amps from a UK wall receptacle. More than enough to take care of a number of uncles. If by "potential" you mean power that outlet can deliver about 3,120 watts. Better than our wimpy 1800W. I agree with you that North America's 120V is unlikely kill a person (in most circumstances), but it has done so. Respect for electricity and care when working around it should not be taken lightly. I have worked in power plants where up to 26,000V was switched and run. I am greatful for the thoughtful training I received before being set loose in those places. Go with care and safety, Dale
@chrisreynolds63312 жыл бұрын
Great video thank you. Another safe method of controlling mains power that I do is to use 433mhz approved wireless switches and use the rcswitch library and the miniature 433 transmit and receive modules. Capture the codes from the original remote and get the sketch to send them.
@keiththomas33522 жыл бұрын
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.
@shawn5763 жыл бұрын
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.
@sergeiziuzev70493 жыл бұрын
It’s great what you are raise topic of safety of AC voltage.
@stevenstheory Жыл бұрын
I can't believe I've only just discovered your channel. This is top-notch material. Like & Sub well earned
@joea37283 жыл бұрын
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.
@michaelnierer85033 жыл бұрын
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.
@electronic79793 жыл бұрын
Helpful video. I liked it
@decem_unosquattro95382 жыл бұрын
Ahh very good explanation of how to connect Arduino safely! Thanks Bill. 👍
@philipsnettleton3 жыл бұрын
Sorry, programmer here. Error in relay code. You are not using the 'thresholdPoint' constant in your activation code.
@deankq4adj1253 жыл бұрын
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.
@trafferz3 жыл бұрын
Quick FYI. We're 100 volt in Japan. Adding to the fun, 50hz eastern Japan (Tokyo), 60hz western Japan (Osaka).
@petittoto74333 жыл бұрын
A good solution also is to use 433MHz remote plug with a 433MHz module for arduino...
@_xyx.3 жыл бұрын
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.
@rachelchow45123 жыл бұрын
good advice, may I check if you need some display applied?
@thearchetype98293 жыл бұрын
You can watch this is just awesome @DroneBot Workshop
@LittLe_PunK9 ай бұрын
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
@rondlh203 жыл бұрын
Great job again, amazing tutorial... there could be feedback in the light-controlled light, it could start flashing
@bikkies4 ай бұрын
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.
@mikehodgetts48642 жыл бұрын
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 !
@rc.97643 жыл бұрын
Thank you for all your effort! Very informative. I don't miss any of your video
@MmMm-tg5mq3 жыл бұрын
Very very helpful video. Your way in explaining is great . Keep going...
@blackmegas2401 Жыл бұрын
I luv that "ugly lamp"..🤣
@AreebAmir3 жыл бұрын
Very nice video,great professor
@RandomPerson494-12c3 жыл бұрын
This is exactly what I needed . Thank You !
@jimthannum71513 жыл бұрын
Excellent tutorial!!
@rich10514143 жыл бұрын
SSR's are very useful noob friendly devices. Just remember that it usually iies about the current rating, and also requires heatsinking.
@horus23693 жыл бұрын
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.
@camplays4873 жыл бұрын
Thank you, you somehow guess what Arduino projects i want to learn about and now I have great reference information and tutorials now.
@eebaker6993 жыл бұрын
Great video. The commercial power board makes things a little bit safer for the hobbyist. 😁
@3Dmotionblur3 жыл бұрын
Do you have a link?
@eebaker6993 жыл бұрын
@@3DmotionblurGood question. I did a quick look and actually came up with the model in this great video.... www.sparkfun.com/products/14236 Reasonable price too. I searched for IOT power boards. Maybe Bill could provide us with some more links.
@3Dmotionblur3 жыл бұрын
Thanks for the help!! That looks great!
@henrybartlett1986 Жыл бұрын
These are wonderful presentations. Many thanks.
@BartdeBoisblanc2 жыл бұрын
8:30 In addition always unplug all AC sources before handling AC wires one had behind your back or in your pocket.
@kgrach2 жыл бұрын
I don;t know if someone mentioned it already. AC transformers only put out the correct voltage at the rated current. If you draw more than the rated current the voltage will be lower, draw less current then the voltage will be higher.
@dzee94813 жыл бұрын
Very well done. I was would like to see a video on using Zero Crossing SSR. How would you use one of these devices using a microcontroller. With Zero Crossing SSR you can use to control the brightness of lights such as LEDs or incandescent lights.
@TheDanyBelanger3 жыл бұрын
Thank you so much for this. Very good video as usual. Can’t wait for the dimming part :)
@rbpassos773 жыл бұрын
Great vídeo. Excelente chanel. from Brazil , thanks a lot
@stephenloto89842 жыл бұрын
Good lecture, I want to know how to connect my electric motor with the relay and using rf to control it. Thank you.
@hydroponikstuttgart45153 жыл бұрын
Hi, could you make a follow up video where you explain how to controll certain AC Devices, like dimming a lamp/motor. And explain what kind of Devices can controlled in wich way and what devices cant be easily controlled ? Would be much apreciated!
@petronics24543 жыл бұрын
As an electrician, I find your tutorial (s) incorporating Arduino- full demonstrations: Sir, Absolutely Brilliant. Thank you for sharing the code too; that's what I am wanting to learn (like everyone else on your Chanel) .. I would love you to demonstrate a stop/start station for an electric 240v pump in parallel with Arduino doing the same. Sincere thanks, Pete
@MrSteewped2 жыл бұрын
as an electrician then you should of pointed out the major error in his instruction is that the switch should be always switching the hot side of whatever he is controling not leaving the item hot.
@mikehodgetts48642 жыл бұрын
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 !
@HARSH99093 жыл бұрын
Can you make a video to make a video to make SSR? Or a circuit board using TRIAC to be controlled via ESP32/Arduino.
@Leroys_Stuff3 жыл бұрын
Great video as always Bill.
@vanshdhelia40423 жыл бұрын
Can you please make videos on dimming the AC devices with an Arduino Please
@antonioalvarado75949 ай бұрын
I learned more here than 2 in years of school
@LegitLeeVelez Жыл бұрын
You should make a video for the esp32 working with relays over bluetooth control and wifi I would watch that video to
@WildLifeBackyardCamera3 жыл бұрын
thanks you so much for all the work you put into making such an awesome video !! Its really appreciated :)
@bybecker3 жыл бұрын
Excellent video. Thank you very much for your information. You know how to explain very well. Congratulations.
@miguelraulgonzalez77443 жыл бұрын
Excellent safety tips!! Thank you!!
@garylangley65323 жыл бұрын
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
@MsThekiller022 жыл бұрын
Excellent video, thank you for all the useful information.
@andrewlee23443 жыл бұрын
Thank you for the great video more inspiration for home projects
@bobvines003 жыл бұрын
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?)
@rancillinmontgomery24802 жыл бұрын
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.
@warrenscorner3 жыл бұрын
I’m surprised you did not mention using arc suppression to protect mechanical relay contacts.
@stevenlightfoot64799 ай бұрын
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
@hannescamitz85753 жыл бұрын
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.
@oriyogi3 жыл бұрын
Csn you explain the process how you make your wonderful videos - what editing software you use, process.....
@neliosamch31953 жыл бұрын
I sub because of a ton of good info. I can't find the episode for DC devices controlled by Arduino and solid state relays.
@steve913113 жыл бұрын
Same here. Can anyone help us find the DC version of this AC lesson? Many thanks in advance. 👍🏻
@karounkapedrokilombo23743 жыл бұрын
This video will save a lot of live ( both human and microcontrolers) mine included
@lekashameti6865 Жыл бұрын
Why do you call them thrisistor as ooposed to thyristor?
@frendoify Жыл бұрын
very good proyect
@maddiek9 Жыл бұрын
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
@bonfacemusyoka2337 Жыл бұрын
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?