DIY Smart Switch - Part 1 how to use a relay

Ғылым және технология

In this video series I'm going to show you how to get started in home automation with a simple project that will allow you to control your lights and other devices in your house.
One popular home automation project that many people start with is controlling their lights. There is a great satisfaction that comes from being able to control a light using your own electronics and code. However a major roadblock for many people is the realization that they have to work with mains voltage which can be dangerous if you don't know what your doing. In reality learning how to safely work with the high voltage an high current electricity in your house is not as difficult as you may think. If you aren't comfortable with how the electricity in your house works, I encourage you to spend a few minutes researching the topic on the internet. Make sure you are getting your information from reputable sources. In a future video I'll show you how to control lights and appliances in your house without having to mess with high voltage electricity. It's a pretty neat little trick and I'm excited to share it with you.
There are several ways you could tackle the problem of controlling a light in your house. The first, and definitely most popular approach to this problem is using a relay to switch the voltage on and off. The lights in your house are connected to a mechanical switch on the wall that you have to toggle on/off with your hand. A relay does the same thing as the switch on the wall, except that instead of toggling the switch on/off with your hand, you can do it with low voltage and low current electricity. You can buy relays from places like Amazon, eBay, Adafruit, or sparkfun. If you don't mind waiting a few weeks, eBay is by far the cheapest place to get them. I recommend getting one that's soldered to a breakout board. You can get them with single relays, or some come with 2, 4 and even 8 channels of relays. I'm going to use this board with 2 relays, even though I'm only going to be using one of the channels.

Пікірлер: 434

  • @bytesizedengineering
    @bytesizedengineering Жыл бұрын

    Huge thanks to my *channel members* who make these videos possible. If you want to support what I do and get access to free project files, an awesome discord community, and much more, head over to *www.patreon.com/bytesizedengineering* or click the *join* button here on KZread.

  • @felixyoghurt3291

    @felixyoghurt3291

    Жыл бұрын

    Just one issue, as seen at @4:35 those black wire leads have too much insulation removed, either not in far enough or need trimming so that bare copper is not exposed.

  • @galacticsurvivorvainamoine5823
    @galacticsurvivorvainamoine58233 жыл бұрын

    Thank you so much. There are a ton of videos, when you search for pi relay, that cover the "connecting it to the pi and writing code to control it" angle, but this (after tons of searching) is the first one that actually covered the other side of things.

  • @TheReviewologists
    @TheReviewologists6 жыл бұрын

    I saw about 5 videos on KZread about relays and understood nothing! But, this video helped me understand relays completely! It's so easy for me now! Thanks for all the info!

  • @sparshdhiman72

    @sparshdhiman72

    4 жыл бұрын

    The Reviewologists should have watched greatscott’s video

  • @dan2thi

    @dan2thi

    4 жыл бұрын

    Exactly!

  • @gametabulas

    @gametabulas

    3 жыл бұрын

    Watch this then : kzread.info/dash/bejne/p6Kdw8uDnbbJmJM.html

  • @Poolboy28560
    @Poolboy285606 жыл бұрын

    Everyone on KZread talked about "the signal". I kept thinking it was 5V+, which of course didn't work at all. THANK YOU for the minor detail about it being COMMON or GROUND! NOW MY CIRCUIT WORKS!!!! Thanks again. Now subscribed and I will be back.

  • @themurphrees3795
    @themurphrees37954 жыл бұрын

    Thank you, I was looking for information on how to connect the AC side of the relay, and you covered it perfectly.

  • @aboulfoof
    @aboulfoof2 жыл бұрын

    Well done!! Excellent easy explanation, was looking forever for a simple explanation of using the SRD-05VDC-SL-C 1 relay module with a push button without arduino, was finally able to understand the input connection of the relay thanks to your explanation and video, thank you!!

  • @sirmaverickrock
    @sirmaverickrock4 жыл бұрын

    I love the way you explained everything. The cameras were perfect. If you ever have time to do the same with your auto switch, that would be awesome.

  • @jaywhited1174
    @jaywhited11744 жыл бұрын

    Thanks for the video. I have an emylo relay, but I was afraid to hook up 120v to the small terminals. I'm good to go now. Thanks again!

  • @huhocheung15
    @huhocheung156 жыл бұрын

    Clear to understand. Great compared with many others.

  • @WVelasco9977
    @WVelasco99775 жыл бұрын

    Thank you! I’ve just found your Chanel and I’m ready to learn more from you.

  • @rohansapkal3317
    @rohansapkal33175 жыл бұрын

    Good explanation, easy to understand. Thanks

  • @dan2thi
    @dan2thi4 жыл бұрын

    Very clear explanation! Thank you!

  • @smileykneez
    @smileykneez4 жыл бұрын

    Very organized and well-presented information. Very useful. Great job!

  • @cottondai
    @cottondai3 жыл бұрын

    Awesome tip and clear tutorial. Thank you.

  • @msindisimtengwane9456
    @msindisimtengwane94565 жыл бұрын

    Awesome video man. Thank you so much. Taking your time to explain to this level of detail is highly appreciated.

  • @bytesizedengineering

    @bytesizedengineering

    5 жыл бұрын

    Thank you! And Thank you for taking the time to comment!

  • @tnamen1307

    @tnamen1307

    5 жыл бұрын

    @@bytesizedengineering Can I control load of max 15 amps under 12 volt DC as along as it maintains the same output power rating?? Example Say, 20 Amp, under 12 v dc, power 240 watt as against the rated 10 Amp X 24 v of same 240 watt, or 15 amp, 12 volt....!!??? I'm really confused with these power and current. Awaiting clear concept. Thanks.

  • @misterspot3470
    @misterspot34703 жыл бұрын

    Best explanation found so far. Any good reply would be appreciated for the following questions in regards to connections. For the load, or black wires, I presume the connections on the module for the current would enter on the NO, and feed the lamp through the COM. Or does it matter? So to properly connect the active magnet, I would presume COM would connect to DC-, while NO would go to IN on the module. I already connected 12V LED lights using relays and now trying to use this different type of relay for a closet light triggered by magnets. In the 12V schematics for LED strips, the NO on the module loops back to DC-, which becomes impossible with 120 volts. As for the exposed wires. If they would touch, then the module would be defeated and the lamp would stay on. The issue is that if they barely touch, arcing could happen and this is considered a very serious issue.

  • @DegustoDelSol
    @DegustoDelSol4 жыл бұрын

    very detailed info, thasnks a lot! this is what i was searching

  • @vigi86
    @vigi866 жыл бұрын

    So humble... "I'm not claiming to be an expert in this topic [...] but I did work as an electritian and I do have a degree in electrical engineering". Dude, you're a PRO... lol

  • @xspeed7434

    @xspeed7434

    5 жыл бұрын

    Victor Fernandez did

  • @miniwarrior7

    @miniwarrior7

    5 жыл бұрын

    He's not very professional for being a pro he has stripped way too much wire going into the relay leaving high voltage exposed ...

  • @justadude336

    @justadude336

    5 жыл бұрын

    Being a electrical engineer and a electrician are different fields. Smart people though

  • @AntoniaWarren
    @AntoniaWarren6 жыл бұрын

    A really good video here. Very clear and easy to understand.

  • @bytesizedengineering

    @bytesizedengineering

    6 жыл бұрын

    Thanks +Antonia Warren

  • @eatonasher3398
    @eatonasher33986 жыл бұрын

    Fantastic! Thank you

  • @shinchiwarrior
    @shinchiwarrior6 жыл бұрын

    great vid.. easy to understand

  • @utrutr6013
    @utrutr60134 жыл бұрын

    Great explanation and also showing.. well done

  • @geofox9484
    @geofox94845 жыл бұрын

    Thank you so much! You’re a great teacher wish I could have you for ever question

  • @bytesizedengineering

    @bytesizedengineering

    5 жыл бұрын

    Thanks for watching! Good luck!

  • @AllanKobelansky
    @AllanKobelansky6 жыл бұрын

    “wire nuts” -> marrettes. Also the live wire and the neutral were really close together attached to the relay. Use heat-shrink tubing as a best practice.

  • @ANTHONYBOOTH

    @ANTHONYBOOTH

    3 жыл бұрын

    ME? - I JUST USE GUM!!! :P

  • @psammons

    @psammons

    3 жыл бұрын

    maybe do it properly with wire bootlaces. The way you have shown is just not safe.

  • @AllanKobelansky

    @AllanKobelansky

    3 жыл бұрын

    It’s 2 years later. Your video was well done. And you could have complicated matters by following my advice. But keeping it simple was the right direction.

  • @evgeniygazetdinov1620
    @evgeniygazetdinov16204 жыл бұрын

    thank you very much. very carefully explanation

  • @synthetic_VN
    @synthetic_VN6 жыл бұрын

    Very useful

  • @konaing6873
    @konaing68734 жыл бұрын

    This video helped me clearly to understand about relays. Thank you bro...I like this video.So,Shared,Subscribed&Notifications bell allowed.

  • @ritugoel2187
    @ritugoel21876 жыл бұрын

    Very nicely explained

  • @RyanThompsonrthomp
    @RyanThompsonrthomp6 жыл бұрын

    God I love the outdoor scenes haha. Thanks for making an awesome video

  • @bytesizedengineering

    @bytesizedengineering

    6 жыл бұрын

    Yeah, I get tired of filming indoors. I think it's more interesting to watch a video shot in different places. Thanks for watching!

  • @colorpanda8409
    @colorpanda84095 жыл бұрын

    Great video! How do you make the 5-volt source in your box?

  • @brechtdhuyvetters
    @brechtdhuyvetters6 жыл бұрын

    Good video, very informative!

  • @bytesizedengineering

    @bytesizedengineering

    6 жыл бұрын

    Brecht Dhuyvetters thanks! I appreciate your feedback!

  • @sowmyanmadangopal5577
    @sowmyanmadangopal55775 жыл бұрын

    Great video!

  • @KaewSaBa
    @KaewSaBa6 жыл бұрын

    This video is probably the best explanation you can find on KZread. Clear and straight forward. Million likes!!

  • @bytesizedengineering

    @bytesizedengineering

    6 жыл бұрын

    Thank you! That means a lot! I appreciate your feedback!

  • @democracyforall

    @democracyforall

    2 жыл бұрын

    @@bytesizedengineering is it possible to connect the two relays in such a way that when powered the Normally open will close and the other one will open which is normally closed? What I am saying let us suppose we have two power connected to two relays from two different sources, How can they be connected or wired in such a way if possible that when one power is on the other one is off? Think about it , seems a good project if it can be done?

  • @vinamravashishth9255
    @vinamravashishth92553 жыл бұрын

    Very nice video, helped a lot!

  • @staceycatala2433
    @staceycatala24335 жыл бұрын

    LOL I love your shirt!

  • @akanobody5622
    @akanobody56224 жыл бұрын

    THX, just working with a 2 realy module and I was doing something wrong, you told me what :D

  • @harshith6208
    @harshith62086 жыл бұрын

    Nice, I love it i can really understand Thank You! I will sure subscribe

  • @iamZairul
    @iamZairul4 жыл бұрын

    Good sharing.ty

  • @smallgoon
    @smallgoon5 жыл бұрын

    Great job... nicely done

  • @bytesizedengineering

    @bytesizedengineering

    5 жыл бұрын

    Thanks for taking the time to comment!

  • @ICStation2013
    @ICStation20136 жыл бұрын

    Great video, thanks for sharing. :)

  • @bytesizedengineering

    @bytesizedengineering

    6 жыл бұрын

    Thanks for watching!

  • @akileahroxx1583
    @akileahroxx15835 жыл бұрын

    D video is amzing and very informative.. And easy to understand Well done brotha!👍👌

  • @bytesizedengineering

    @bytesizedengineering

    5 жыл бұрын

    Thanks for watching!

  • @daniellenicolecamsteam6429
    @daniellenicolecamsteam64295 жыл бұрын

    That was a great video

  • @YoungGrizzly
    @YoungGrizzly5 жыл бұрын

    If you want to control the power of higher voltage equipment like servers and even lights I like using an Intelligent APC (7800 or 7900) PDU over a network with fence_apc installed on a Linux device. That's for anyone who might actually have a need for that. That way you can use your GPIO pins for things like sensors, etc, etc.

  • @simpletechprojects2126
    @simpletechprojects21265 жыл бұрын

    Nice!!

  • @kabandajamir9844
    @kabandajamir98442 жыл бұрын

    The world's best teacher

  • @bytesizedengineering

    @bytesizedengineering

    2 жыл бұрын

    That is way too generous, but thank you

  • @luqmanibrahim2606
    @luqmanibrahim26064 жыл бұрын

    Thank you for your video I have one qustion please why you didn't connected the signal to the positive 5 volt?

  • @videoaccount5676
    @videoaccount56766 жыл бұрын

    Triacs are another solution to home automation and controlling AC loads

  • @sparshdhiman72

    @sparshdhiman72

    4 жыл бұрын

    There’s SSR too!

  • @dallinlmag
    @dallinlmag6 жыл бұрын

    Would you be willing to share the STL for the enclosure? It looks like exactly what I need after watching your video! Great video btw. Your others are great too.

  • @sreeramdarsan463
    @sreeramdarsan4633 жыл бұрын

    thanks

  • @aarijsyyed
    @aarijsyyed3 жыл бұрын

    Thanks for the video , please tell which relay should be used for 15amp appliances like gizzer fridge, please give the detailed name of relay,, thank you

  • @Extra_Mental
    @Extra_Mental6 жыл бұрын

    You shouldnt have so much of the bare copper sitting out of the relay, if they only slightly touch all current will flow through the small surface area making it heat up and most likely cause a fire, and the circuit breaker will not trip to prevent it

  • @therealb888

    @therealb888

    5 жыл бұрын

    exactly my thought!

  • @___aZa___

    @___aZa___

    5 жыл бұрын

    @@therealb888 ^

  • @gene_Code

    @gene_Code

    5 жыл бұрын

    4:38 in case somebody is wondering. but yeah, that is super dangerous!!

  • @therealb888

    @therealb888

    5 жыл бұрын

    @@gene_Code ur the man!

  • @miniwarrior7

    @miniwarrior7

    5 жыл бұрын

    Good lord yes XD literally the worst thing to show people that exposed copper is okay!

  • @boomwithpeter623
    @boomwithpeter6234 жыл бұрын

    So i ordered the one with 4 relays, connected it to my centralised electric space heater, one is for a water pump and other 3 are for heaters, every heater is 8 KW, i was not sure how powerful these relays out so i used theme to activate and deactiate existing 40KW relays inside the heater, i used the rpi4 1gb bc it has a poe gigabit port, slapped in a 16GB U10 card, i brought the poe enabled gigabit cat6 cable to the heater, tempreture dial was already connected to the main home server, installed Pihole on that pi to and just ordered the case with a fan from aliexpress, i made a quick app (i am a java developer) and voila now i dont need to go down to the basement to turn on or of the heater, although on all of the pcs i have made a small java gui for that, i am planing to make my whole house smart using raspberry pis

  • @scarlaxx
    @scarlaxx4 жыл бұрын

    This video is ok but your t-shirt is the best!

  • @viperrwk
    @viperrwk6 жыл бұрын

    Thank you. Exactly what I was going to do to test my design - now I don't have to!

  • @bytesizedengineering

    @bytesizedengineering

    6 жыл бұрын

    Thanks for watching

  • @joebarbs00
    @joebarbs003 жыл бұрын

    Will this same process work to turn off a dehumidifier should a little giant condensation pump fail? I’m assuming a larger relay would be needed, but the process would be the same?

  • @MisterKaen
    @MisterKaen5 жыл бұрын

    Nice video

  • @turtle2132
    @turtle21325 жыл бұрын

    love the shirt

  • @moek8924
    @moek89246 жыл бұрын

    Very humble with that t-shirt

  • @georgevellanikkaran7079
    @georgevellanikkaran70796 жыл бұрын

    Hi, can you not use neutral to the relay for control?

  • @mswingkie
    @mswingkie6 жыл бұрын

    Hello I have a question. I have the sonoff 4ch pro 2 and have connected to my garage door. now I want a back report via a switch on my phone app that is possible. I can't see if the door is open or closed on my phone

  • @eddiet3026
    @eddiet30263 жыл бұрын

    I want to control several 12v lighting circuits and I'm looking at multi channel relay boards. They all have only one power input. Does that put all my devices on one power supply, because you could get up to 10 amps pretty quickly!

  • @ironrobin
    @ironrobin5 жыл бұрын

    thank you sir i was able to successfully make a relay switch that powers a space heater and a humidifier.

  • @bytesizedengineering

    @bytesizedengineering

    5 жыл бұрын

    Glad to hear!

  • @LandscapeInMotion
    @LandscapeInMotion6 жыл бұрын

    Thanks for the vid! How could I use a 5V relay to get dry contact output?

  • @fearcityfpv7037

    @fearcityfpv7037

    5 жыл бұрын

    The NC, C, and NO terminals will be dry.

  • @ANTHONYBOOTH
    @ANTHONYBOOTH5 жыл бұрын

    just got a 12V 2-Channel Relay Board Module Active Low unit; - just realized that I now need an ATX psu near it AND to knock up a wee module with a bit of tri-pad and two transistors (+resistors)...

  • @bytesizedengineering

    @bytesizedengineering

    5 жыл бұрын

    Sounds cool! Good luck!

  • @spawn666reaper
    @spawn666reaper3 жыл бұрын

    If you split the signal wire and place them in the twee middle pins. Would that switch both relays at the same time?

  • @victorhugogomezgomez4804
    @victorhugogomezgomez48043 жыл бұрын

    Hi! What is the circuit already connected to the board in minute 5:00? and You mentioned that do no t connect to a fridge or vacuum cleaner, but can I connect it to my automatic door motor?

  • @JasonWee
    @JasonWee3 жыл бұрын

    the relay has this rating 10a 30vdc 10a does this rating can apply on dc load too?

  • @piyushjaininventor
    @piyushjaininventor3 жыл бұрын

    Question: should i control neutral wire or the live wire with relay?

  • @mesterm330
    @mesterm3304 жыл бұрын

    Thank you Thank you Thank you

  • @smartlife77
    @smartlife775 жыл бұрын

    Great video! Do you have a video on how to use a relay to open/close an electric DC 12V valve? I assume you need a two-channel relay to set the reverse polarity? Thanks again for the video

  • @trellduffin9380

    @trellduffin9380

    5 жыл бұрын

    A solinoid is usually used in irrigation

  • @calvinbarajas5144
    @calvinbarajas51445 жыл бұрын

    Awesome video Zach, thanks very much. I need to power a simple electromagnet with 12v and would like to use one of the GPIO pins on my Raspberry Pi to control the relay. Can I use one of the Pi's 3.3v GPIO pins? Also, do I need a diode to protect the microcontroller from voltage backfeed/backpower created by the collapsing magnetic field (when I turn it off)?

  • @bytesizedengineering

    @bytesizedengineering

    5 жыл бұрын

    Calvin, you are right on track! You absolutely can use the pi for something like this. The relay module you see in this video has back emf voltage protection built in. It has a diode (like you mentioned) as well as an opto-coupler. There are a million tutorials online (adafruit, sparkfun, etc) on this topic. A quick google search should provide what you need. Good luck!

  • @theoutlaw2395
    @theoutlaw23952 жыл бұрын

    At 4:40; how does one wire the relay module (control side,) like I would with a 5 pin cube relay? I'm working on a car project and just want to shift the relay using a power and ground (like a cube relay pins 85/86.) Is that possible? And if it's not to complicated to explain, how do use the Power Select Jumper on the left side? Thanks in advance.

  • @ask-wj2pf
    @ask-wj2pf6 жыл бұрын

    Really nice T man I mean T shirt man .....

  • @bytesizedengineering

    @bytesizedengineering

    6 жыл бұрын

    Thanks

  • @pratapdesai9172
    @pratapdesai91723 жыл бұрын

    I need your help regarding relay. I want to rotate motor one cycle clock wise and one cycle anti clockwise. Yousing 24 volt/4amps adaptor.

  • @vamsidharmamillapalli6844
    @vamsidharmamillapalli68446 жыл бұрын

    Nice video. Can you explain about static relays? I am trying to do Home Automation DIY with Rapbery pi and relays to turn on off lights with touching my apartment wiring...

  • @bytesizedengineering

    @bytesizedengineering

    6 жыл бұрын

    +Vamsidhar Mamillapalli have you watched my Sonoff WiFi switch video? When you say static relay, are you referring to a solid state relay? I could possibly do a video on those.

  • @zigavojska1672
    @zigavojska167217 күн бұрын

    I didnt understand this video very good, so what kind of relay do you need to use for a wired magnetic window switch, to turn off and on the air conditioner when window opens or closes. AC 3000w. Thank you, best regards

  • @georgedennison3338
    @georgedennison33384 жыл бұрын

    I have a power supply for the DC motor on my Sherline miniature lathe with a relay like this. I overloaded the motor the other day turning some difficult material, and it shut down the power supply. It happened a couple more times, before I could get finished with the piece, and now the motor doesn't run. I could hear a relay click when this happened, and thought it was a circuit breaker in the power supply. Now, I have it open, and can't find a circuit breaker. I do find a Songle SRD-05vdc-SL-C relay. It is obviously not clicking, as it should. I've read about relays with overload protection, but it doesn't appear this is such a relay. Could it still have functioned as an overload? And could it have died in my 'adventures'? Thanks, for any help. I know enough to get me in over my head, but not enough to dig myself out. GeoD

  • @mihakrsevan
    @mihakrsevan3 жыл бұрын

    Hi, what kind of switch can you use for signal? Push button switch works?

  • @mastermindalthaf2945
    @mastermindalthaf29456 жыл бұрын

    Which meater you use ineed link to buy

  • @soumyakulkarni5378
    @soumyakulkarni53785 жыл бұрын

    Hello , this vedio was very helpful , thank you. However what is the equipment connected to lower end ofyour breadboard?

  • @bytesizedengineering

    @bytesizedengineering

    5 жыл бұрын

    I think you're asking about the breadboard power supply.

  • @micha-42
    @micha-426 жыл бұрын

    Great video, cheers mate! Also, 10amps seems *plenty* for a fridge :-)

  • @jimbrownza

    @jimbrownza

    5 жыл бұрын

    My 6' tall Bosch fridge is 90W, which at the 220V we have here, and with P=VI, is half an amp.

  • @everyhandletaken

    @everyhandletaken

    3 жыл бұрын

    Yup. Mind you, I can’t see why you would want to turn off the fridge with a switch, sensor, wifi etc 🤔

  • @pedrongTinapay2023
    @pedrongTinapay20236 жыл бұрын

    what was the power rating of the relay? specs please thank you :)

  • @DogDog173
    @DogDog1735 жыл бұрын

    cute background music

  • @bpena617
    @bpena6174 жыл бұрын

    Thank you for your video, you may be able to help me with what I'm looking for: I need some type of relay to turn off my generator when the city power come on, my generator goes off by making a connection in the generator bovine. Can you or any one please help ?

  • @bytesizedengineering

    @bytesizedengineering

    4 жыл бұрын

    search for transfer switch

  • @jason1682
    @jason16824 жыл бұрын

    I really wonder if it replace 110acv with 12dcv battery then is it possible to control 12volt electronic devices?

  • @rstckz
    @rstckz3 жыл бұрын

    Hi I've got a question when you connect the 2 black wires why don't you use the other port. And what the other port for Sorry I'm new to this

  • @mikelunsford7462
    @mikelunsford74622 жыл бұрын

    I have 1 of the 5dcv to 110 relays. I'm trying to create a Poe using Bluetooth. I was hoping that my signal lead would come from my BT signal as my connection is made to the BT Device?? Your saying ground is signal. So do you know a a way to make the relay activate from a BT receiver board?

  • @kiwoongpk91
    @kiwoongpk914 жыл бұрын

    I love the shirt

  • @trilight3597
    @trilight35973 жыл бұрын

    I have a question. Why cut the other two cables if we were going to reconnect them regardless?

  • @gagank9199
    @gagank91993 жыл бұрын

    Sir can u help me to complete my fun home project please the topic is very relevant to your understandings and expertise

  • @yz8302
    @yz83025 жыл бұрын

    I will recommend using wire ferrules on the end of wires. be safe and happy when u r playing with high voltage

  • @bytesizedengineering

    @bytesizedengineering

    5 жыл бұрын

    Thanks for the feedback

  • @TheLifeOfMarcus
    @TheLifeOfMarcus6 жыл бұрын

    Isn’t it possible to just use the relay in the outlet instead of buying an extender and if so isn’t it dangerous that right?

  • @kennydharmawan1720
    @kennydharmawan17204 жыл бұрын

    in Indonesia, I use 2 types of wire in a cable which is + and - but how do I use it if there is 2 (not 3)?

  • @RonenLin
    @RonenLin3 жыл бұрын

    what if you have several relays on the same board, how do you manually activate each one?

  • @shakilhaider5352
    @shakilhaider53526 жыл бұрын

    Question for you. I’m trying ontrol a linear actuator so I can just retract the actuator when turned off and then extend the actuator when turned off? I am trying to control a door to open and close. Can I use a relay and can I make it wireless with Alexa or Google? Thanks.

  • @bytesizedengineering

    @bytesizedengineering

    6 жыл бұрын

    Sounds like a great project, I believe I answered your personal message in my inbox.

  • @garys.1932
    @garys.19325 жыл бұрын

    Could you tell me if there is a "touch activated" relay available? I'm talking like a bug touching it. It's something fairly unique I am inventing and can't seem to find something like this. Great video also! I enjoyed watching them.

  • @bytesizedengineering

    @bytesizedengineering

    5 жыл бұрын

    Look into capacitive touch sensors.

  • @aglan
    @aglan6 жыл бұрын

    Which end of black wires connected to the common and normally open terminal. The one to the wall is normally open and to the lamp is common? Thank you

  • @bytesizedengineering

    @bytesizedengineering

    6 жыл бұрын

    In this configuration it doesn't really matter. Since the wall wire is the one we're switching, I would connect that to common, and the lamp to normally open. It will work just fine if you have them the other way.

  • @dickman1981
    @dickman19814 жыл бұрын

    I've been seeing your mug and that damn t-shirt too much lately! 1 final check b4 power up.

  • @devilnickwbs
    @devilnickwbs4 жыл бұрын

    Hey, i have question, can i use this to wire the intercom indoor unit, in order to open the gate of the building?

  • @bytesizedengineering

    @bytesizedengineering

    4 жыл бұрын

    I wouldn't recommend tampering with property you don't own.

  • @vinniemcloughlin7848
    @vinniemcloughlin78486 жыл бұрын

    Hay Love the Channel You have a great way of explaining stuff. You've got a sub hear I have a video idea for you that would help me and sure others would find Interesting. Home Security using a combo of ir beams, PIR sensors, Sirens and led flood lights and relays that stay closed for a set time so the siren and flood lights stay on if the ir beam is tripped. Thanks

  • @bytesizedengineering

    @bytesizedengineering

    6 жыл бұрын

    Glad to hear it! Thanks for the suggestions, and thanks for watching!

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