Turn Sonoff Basic to garage door opener with eWeLink
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- เผยแพร่เมื่อ 27 ธ.ค. 2018
- In this video I explain how to turn a Sonoff Basic into a garage door opener and use it in eWelink. No custom firmware, but some hardware modification to the Sonoff Basic is required.
My video on checking if the same with Sonoff R2 can be done: • Small Bit: Sonoff Basi...
If you need a purpose built Sonoff garage door opener check this Eachen GD-DC5: • Eachen GD-DC5 Garage D...
Also, Sonoff 4CH Pro is a perfect option, no hardware changes needed: • Sonoff 4CH Pro - Non-m...
Do you want to turn your Sonoff Basic onto a garage door opener? Use eWeLink to accomplish just that! Just enter the eWeLink code found on the back of your Sonoff Basic, and you'll be ready to go!
With eWeLink, you can control your Sonoff Basic from anywhere in the world. You can even open your garage door from your phone! This is a great way to have more convenience and control in your life, and it's easy to do with eWeLink!
If you like what I do here, you can support me with TH-cam Thanks, or Patreon:
/ csongorvarga - วิทยาศาสตร์และเทคโนโลยี
Excellent, just modified mine and now have Google opening and closing my garage door! I also put a CCTV camera in there, great for accepting parcels when we're out! Thanks so much...
I was expecting something complicated and it was really simple.. nice job!
Excellent, helpful, clear and simple video. Many thanks! I managed to get this going quite easily, however I did find breaking the connections and ensuring neat soldering changes a little challenging. Been too many years since I did these things.
Great video, very easy to follow. Clear, concise without assuming too much prior knowledge from your audience.
Just what I was looking for. I couldn't work out how to do it myself. Thank you for posting
Thanks for this ideia! I had a sonoff switch on the shelf and now it's working perfectly on my garage!
After I saw your video I purchased the sonoff basic and customized it according to your explanations and it works perfect with my chamberlain ml 4000. Thank you!
I think you are the first person who told me he purchased something because he has seen my video. I am glad that all worked! Enjoy.
Thanks for this one! Thought about it a few times and never knew how to figure it out. Great job!
Thank you for uploading this, was trying to think of a way to do it and it was getting far to complicated. This very easy. Again thank you.
I have all 4 of my shop doors equipped with these modified Sonoffs. Thanks. They work perfectly. My son sent me an $80 opener that looked suspiciously like a Sonoff Basic in a black case. I thanked him and sent it back to him (with his approval) with one of the modified Sonoffs for his garage door. He was amazed! I have Sonoff Basics and 4 channel pros all over my shops to control everything including my two 220V upright compressors. I use Google Minis and can control everything with my voice.
Wow, thanks for your response. I have a 4CH Pro now, and I will definitely want to make a new video how to use that for a door opener. It looks like many people are willing to make the hardware mod but I am sure there are more who are less comfortable making these changes. And at least they could do with 4CH Pro.
Perfect, this is exactly what I was looking for, thank you so much.
My garage door is working great!!! Great video and appreciate your patience!.If you are ever in Florida, beer is on me!
Bill Perez do you have 5G net work man, if you do how did you connect it
@@dennis_9039 Go to your settings on your router. Turn off 5g connect your sonoff. Then go back into your router settings make the sonoff device 2.4g only. Turn your 5g back on. It's aggravating but it works.
Can you tell me, where he connect the output in 24dc on the motor or in 230AC voltage in motor
Or the output sonoff its just a connection in 24 Dc
thank you for taking the time to create and share this video. I was able to modify my sonoff with your clear instructions.
Thank you very much for this solution, you are a genius! I just did the same procedure and worked like a charm ! I was using before a external relay in addition to the Sonoff switch, now I don't need it anymore!
hello rock
what is the brand of your garage door motor? promatic?
thank you for your reply
bye
Thanks and greetings from Egypt 🇪🇬
Great video ! Rather than wiring up to garage motor, I've wired this up to my remote control. Soldered the L and N onto the garage remote board and it works great ! I tried without cutting to test and it blew up one of my remotes. Lucky i had a few remote fobs. Thank u again!
Hi can you explain that more detailed please?
Have the exact same door opener :) would love to see a picture of how it is connected to the sonoff
Very simple, safe and well implemented.Nice and clear
Great video! I made your modifications to a unit, buried it in a Mr. Coffee pot. With the inching mode I can either use my phone or my Google Assistant. Beats walking on a cold floor in the winter barefoot to turn the coffee on! =:-) There's really no limit to what you can do with little boxes...
Dave Leland why would you want to modify the sonoff to just use it for a coffee maker. This modification is only for opening the garage door
Thanks for your effort. Both of my doors now have your sonoff mod and work with google assistant.
Thank you really much for this smart improvement! Exactly what I was seeking for!!
Hummm, seems I haven't the same version as you (rev2 if I remember)... But I understand that I've to cut neutral from the input and live from the relay. Maybe I've to remove the relay... I'll find how to figure it out, tomorrow - now it's time for me to sleep...
Great job. My sonoff basic has a different hardware configuration , but I did it. Thank You !!
Thanks. This works great and was easy to mod and install. Waiting for door/window sensor to use to let me know status (open/closed) of garage door. Thanks again.
Great video! It was very helpful to see how easy it is to update the firmware with the eWeLink app. I had two old Sonoff Basic switches that I was no longer using due to the super invasive permissions the eWeLink app requires. Rather than installing the app on my new phone, I got around this by installing eWeLink on an old phone I no longer use. I installed the app and updated the firmware and settings. I turned the phone off and put it back in the drawer. Now I control the Sonoffs with Alexa and the Alexa mobile app. It works great! Thank for a great idea!
Rather than cutting the traces and solder, I decided to leave the Sonoff as it is and add a simple 110v relay ($1.55 US, free S&H).
Good idea!
Great Video, thanks. These cheap little Sonoff switches are so handy. I have like 10 of them.
I've had mine for over 2 to 3 years using daily and haven't had to replace any yet
TY sir. I was going to put a toggle relay on the other end but this is easier. Gives me more ideas now too.
Thank you so much you saved me money and most importantly heaps of time!
Brilliant, I was looking for a solution to automate my home elevator. Looks like this might just work
I wish I did watch your video before I fried my PCB in my garage door. I planned to put an external relay (and forgot-hence made a mistake!) but this is better! Very informative. And now excuse me but I have to order a new pcb from TorTechnik kft. Koszi Csongor, ez nagyon jo otlet!
Thank you Csongor! Just what I was looking for. Works Great!
I am glad that this helped.
Hi, thanks for your fantastic tutorial, we learned a lot from you guys too.
You are welcome!
Great video. The new version of the Sonoff Basic has a totally different board layout, but I was able to mod it without any issues to achieve the same results.
@Dieter Would it be possible to share how you have done it?
@@kennycreten Here is a link to a short presentation on how to do it. Hope it helps. th-cam.com/video/MXGvOPE7Xo4/w-d-xo.html
Thanks a lot! Appreciated!
@@raptr49 I, too was looking for a way to mod a version 2. Thanks for saving me a headache. Prices are going up for Sonoffs. I pd 6.49 on amazn 2wks ago, now they are 6.99.
That was exactly what i need. Thanks a lot! Cheers from Argentina.
That is a great mod ,thank you for showing how it is done .
Thanks.
Wow - I have been looking for this solution - thanks ! -
Wish i understood these things, it looks so fun and interesting
This is great job and i serach very much how i can solve my problem with sonoff... THANK YOUUUUUUUUU....
This video is very good for smart device DIYers. Very brilliant idea. The drawback is you are not able to tell the status of the garage door. Not able to check the status of door is just half of the whole purpose of having smart garage door. There are some very similar devices cost less than $50 that came with similar setup plus a door sensor that can provide the status of the door. Spending couple hours cutting and soldering, installation might be a good weekend project. If time is essential and status is important for you, you might just buy directly. I am not trying to deter the experiement of this amazing product. In stead ,I am trying to help you decide before trying. You are trying to install a device that give you function to open or close only. If you want to try or already installed this design, You can buy separate wifi window sensor to amend the missing function. The cost is less than $30. Thank Mr. Varga for this excellent idea, work and video. BARVO !!
Thanks a lot. Yes there are quite a few products out there. Still this video proves to be very popular. Either people are not aware what else is out there, or reluctant to spend the extra bucks for a purpose designed garage door opener.
Thank you so much and keep up your great work 👍
Thanks for this brilliant idea 🥰
Good video. Newer garage door openers use Security + 2.0 which means a simple switch contact will not activate the door. You can get around this by buying a Security + 2.0 smart button on eBay and then hack into the button contacts to hook up to the Sonoff. The Security + 2.0 Smart buttons communicate serially over a 2 wire interface to the door opener.
Or just use the current remote controller .
@@dmtycn how is that one?
@@teleonline9058 I saw a guy use this sonoff to replace the remoter button, short means push down the remoter, then your current remoter works.
Greetings from Canada and Thank you, Useful video. As of this writing 2020 Feb 20 you have 199,716 views and have somehow managed to get 140 people to say they dislike the video. There were no complaints among the comments that I could see. I realize the percentage (0.070 %) means that the dislikes are immaterial, but I am quite perplexed by what objection anyone could have.
Cheers, I think they may dislike due to quality. I could make the same shorter more professional if I had scripted the video, etc, but that is not that channel :)
@@csongorvarga :
I think the dislikes are from one source:
People hit the wrong option (dislike). It happens to me very often.
Kindly send me the wiring diagram picture about how to apply the sonoff device for garage motor..thanks
I did the hardware mod to a Sonoff Dual a while back.
Thanks for this!. I was debating on wiring a contactor switch to my Sonoff to get dry contact functionality for my MAME cabinet and discovered your mod to convert the Sonoff to a dry contact relay. I am using your mod to turn on/off a MAME laptop (wired to power button).
Excellent idea, the other alternative is just to add a small relay at the output to energize it and use the normally open(NO) side of relay to activate the door. this will ovoid cutting the board.
Thank you! Great work!
Man.. You are a genius
Freaking fantastic. Was wondering if there was a way to make the contacts "dry". I had considered using an interposing relay, but this makes it much easier. Thanks!!!
Very Nice, I have been thinking about this but was unaware of the new "inching" feature. The proper term would be "momentary" Your mod makes it so simple for this and many other applications.
Thanks. It seems inching been used elsewhere, but "momentary" would be my chose too. Maybe it gets renamed in a new release.
@@csongorvarga here is a much better version
www.instructables.com/id/Sonoff-Garage-Door-Opener/
see my comments for how to do this method without cutting traces or modifiying your sonoff basic in any way
here is the diagram , the top is how the sonoff basic is normally and how it is supposed to be wired to control main voltage devices like lights, the bottom is my diagram on how to wire it to switch things without them being connected to mains voltage
cdn.instructables.com/FK0/O16O/JI0JOBH2/FK0O16OJI0JOBH2.LARGE.jpg
this indestructible project has a sensor on the GPIO pin for state reporting
this guy used a simple NO magnetic reed switch setup but you could use a simple arduino
mini or nano with an ultrasound sensor and a relay instead of the magnetic reed switch
if you can not mount the magnet and reed switch on your door setup
@@anthonyrossetti7509 I wanted to keep the original firmware for those who would not go as far as flashing the ESP.
@@csongorvarga can you use
It with Alexa and GA with the original FW?
@@anthonyrossetti7509 Yes, you just need to say something like "Alexa turn the garage door on". I don't think it would accept commands like "open" or "close". And when you wan to close the door you have to say "on" again.
Great job! High utility video!
CVarga, you were correct after a few times of opening/closing settings I did get the screen with “inching” on it. Everything is done per instructions, all tests are confirmed as per instructions, problem I’m still having is the relay never opens/closes, and a continuity check at output side shows nothing, any ideas where I may have messed up? LW
Nice work dear I really appreciate good job
Can you provide wiring details to the opener? I have the same door opener but no instruction manual. I’d love to do this to mine. I just need to know where to connect the live and neutral to
Just what I initially needed. Now how can we remotely check the garage door open/shut status please?
Thanks a lot. It is a good solution for me.
Neste vídeo mostra que o toggle de 0,5s funciona pela aplicação e pelo botão do controlador. A minha questão é: e pelo comando RF funciona igual?
Very nice, congratulations
Szuper érdekes a csatornád! Az garázsnyitó miatt nem mókoltam szét a Sonoff-ot, inkább relay -vel oldottam meg! De az ötlet király!
Igen, jó megoldás. Főleg mert ezt az első verziót már szinte nem is lehet kapni, és az újabb modellekben már annyi cucc van, hogy ott már ezeket a vágásokat meg sem tudom csinálni.
Exactly that I need. Thanks
well done. I needed this thing to work as a switcher of the 12v device. it was not possible with its current state. I was planning to use it switching an extra relay. but now I can use it switching 12v device...
You can also check out Sonoff SV. It run off 5V and the relay can switch any voltage. That is the easiest option.
@@csongorvarga thanks a lot
Is it possible to do this change and do the Sonoff works with apple Homekit?
It's a very useful modification. Monitoring the open/close state would be awesome without using tasmota nor any sw modification on sonoff. ;)
Yes, that's what the Eachen garage door opener does. It is always nice to have some feedback. Though at a greater price.
köszi, pont ilyen megoldást kerestem. big like
Nice thank you for sharing, here is how I linked Alexa with Sonoff
Hello I have question. If you set up in application for 0.5 sek iching , how the button on device ( on soffon this small black one) is reacting?? the same as impuls or button is on permanent?
Muito bom,era o que eu estava tentando fazer. 😎👍👏👏👏
Blz?
O cara apenas fez um jumper na placa?
The garagedoor motor have PE GND PB 24V. Which one do i use to Connect with this one
Hi, nice tutorial, I've tried it also cut the board, but there is still connection on my sonoff (6:11 in ur vid), got no idea how where it comes...
Worked great! Nice video, not a lot of chatter. Has anyone done any fail-safe testing? What happens during power failure?
Nice explanation, thanks, I wonder why Sonoff don't make a relay-only switching device?
I didn't see a part about the main switch into house .. does that still function
Would that work the same for the RF2 or RF3 models which can also be linked to the FR Remote for operating the door ???
Hi, can we integrate this into home assistant? Or will it lose the inching functionality?
Awesome! Terrific mod.
Hello,
I do each step exact but at last out put continuity is not working can you help me?
Many thanks for sharing.
Is there anyway can you know the garage door open/closed while you away from home?
Not with this unit. I can suggest a separate zigbee door/window sensor, or I have reviewed a purpuse built garage door unit years ago which has a open/closed sensor: EACHEN GD-DC5
With the new update giving the "inching" function, do you still need to do the hardware mod (the physical cutting)?
Yes, otherwise you put live voltage to your garage motor which will likely destroy it.
Will this work on a MESH network? I have has some switches state (and verified) that they don't.
Forgive my limited knowledge. What makes it so you can't just run a jumper on the 2nd side? :)
Good explanation, thx
Hey, thanks for this video guide. Very clever and really well described.
I wondered if you would be kind enough to offer me some advice.
I’m trying to set up a cellar door to open/close via a voice command (with Alexa). The cellar door currently has a manual rocker switch, which is zero voltage. Positions are raise/close and the middle position which is clicks back to is stop. In order to open or close the cellar door, the switch must be held in open continuously, until the door reaches the fully open position. Same with closing, it must be held constantly until closed. I am trying to figure out which smart switch will work best to control this cellar door. I know the app has a timer, which is perfect, so once a connection is established by a smart switch, it can be kept switched for a set duration. However, the open wire is different to the close wire. Three wires in switch in total. Blue, pink and yellow. When blues touches pink, cellar door opens. When blue touches yellow, cellar door closes. Any advice is greatly appreciated.
I assume the motor which operates the door uses mains power. In that case I suggest a 2 gang TX wall switch. These have an interlock function, meaning one gang switches off the other gang. The only thing I have not tested, if the inching function (auto off) also works in interlock mode.
Csongor Varga - The motor is in fact 24volt, however it is fed from a control unit, which decelerates the motor, as it approaches fully open or closed, to avoid a hard finish.
The control unit is mains power (240v)
However, the switch wire, which I intend to tap into, is a zero voltage switch. So we can not push any power through the wires. They are just simple switching wires.
The problem I am having is to find a smart switch device which will enable a ‘open’ option, which makes a timed (inching) contention - but also has separate terminals for ‘close’.
Can someone tell me if Sonoff RF has the option of Inchining mode after an update.
PS : Heard that the new Sonoff R3 RF has the inching mode though.
Being a total NOOB here, is there a diagram showing as to what wires go into the "input" side and what goes to the "output" side? On my gate motor I have a spare trigger, but for the garage door, I am not sure. thanks
This is amazing! I had a sonoff switch in the draw, I stopped using them because the ewelink app was so unreliable. But with this mod I don't care about that haha. Thanks so much for sharing!
*I've turned off my skills for Alexa and would suggest everyone else do so, so easy for thieves to shout "Alexa open the garage door" when you're not in.*
Love the Alexa suggestion. Did not think of that!
- The command for Alexa may be changed, coded, to reduce chances for abuse. "Alexa open garage door1"
@@izsakitt3711 Don't think I'm going to take that chance, but good idea.
@@izsakitt3711 "Alexa, my feet smell bad". Opens the garage door. Actually I would not recommend using the Sonoff and Amazon or Google speakers for any door locks or openers. Something more secure should be considered if you have valuables in your garage (as I do). I have a RTU5024 gate opener in my garage. I'm in the USA. I toss a Lyca Mobile SIM card which works over the T-Mobile Network in the RTU5024. I fund that SIM with $10 a year. My Google Assistant and Home Mini each work to open the garage door when I give the voice command to call the Lyca phone number. The RTU5024 only opens the door (or closes) when the caller ID matches a number in my list. No cellular minutes are billed to my Lyca PayGo account due to a feature within the RTU5024. I have the RTU5024 send me a $0.05 text message once in a while (~90 days) to keep the Lyca SIM active. This has worked very reliably for me for two years.
The New Sonoff boards are different. I decided it was best to remove the relay because there's a Fuse (F1) almost touching the relay (with tracing on the top that has to be cut). I used a dremil to cut all the way through the board tracing, then replaced the wire from the terminal through my cut on the board to the relay pin on the back. Thanks to Csongor for making the Video. *If you can't Hack/Mod the board just use a Relay with a 110 Volt coil and NO Contacts and you and it will work the same.
Looks straight forward to me. Only question: how does it plug into the opener mechanism?
That is different for each garage door opener. Usually there are 2 outputs for an external opener where usually a switch is wired. You need to check the manual of your opener.
C Varga, excellent vid, I plan on doing this as well, did it with a sonoff basic and a relay, but I’ve got such a gaggle of wire hanging there, that this will make it so much simpler. Question I have though on the new garage door openers, like someone said, they use different security ( I believe it was security +2 smart button, have you ever used a sonoff with one of those? And where can I get that smart button?, I’ve looked but to no avail, any help would be appreciated. LW
Yes, I read those comments, but honestly I don't know anything about them. This only works for the ones which has this external switch terminal. I find it strange that even a new garage door openers do not have that simple feature. I mean we should make the wireless remotes more secure, but most people install a wall switch in the garage to operate the door. Since the motor and the switch is inside the house there is no security issue.
Can anyone explain where to cut on the current generation Sonoff Basic? The board is labeled Sonoff RF R2 Power...
Mine has black wires connecting from the relay to the output ports, the bottom of the board doesn't have those solder covered traces....
I did a new video on the R2, but the terminals are too close for my comfort.
what is the best quality mini split to buy
You are my hero!
Kindly send me the wiring digram picture regarding how to apply sonoff device to roller gate..thanks
Hello, thank you for this video. Is there a risk if I forget to put the contact back on OFF, and that I leave it longtime on ON? Thank you.
The garage door openers usually expect a short pulse. I am not sure how your unit will respond. If I leave mine on for a long time, it will stop the door after a few seconds.
If I leave mine ON, nothing wrong has happened. Motor keeps working and gate closes or opens normally. I just have to turn it off to use it again
Thanks for the video.. I have a motorized somfy curtain controller... it has 2 separate live wires for opening and closing the curtains and 1 neutral.. how will it work with that?
It will not. That requires two separate input. Probably the best to use one of the 2 gang wifi switches from Sonoff, for example one of the TX models. They have an interlock function, so when you press one of the switch which is for example open, it closes the other switch (which would be close) and vice versa.
@@csongorvarga thanks for the quick response!
Thank you, good video and helpful information. Csongor what Firmware version are you using? My Sonoff Basic appears to be up to date with 2.6.1 and I'm not getting the "inching" option.
2.6.0 was the latest version when I recorded the video. You can see it at 9:02. If you have just upgraded the firmware, go out of the settings screen and back. My Basic was on 1.6.x when I bought it, and did upgrade to 2.6.0. The Inching option was not visible, so I had to go out and back again to show.
@@csongorvarga Thanks again, have checked just now, definitely showing inching. I'll be setting up on my garage door after surgery on Sonoff board as displayed on your video. Your code will meet my needs and I've also had a look at Ewald's Do Anything Button. Have been coding ESP8266 and now ESP32 spasmodically over the last couple of years.
@@46pmw You can do a lot more with bespoke firmware(like sensing the door state), there was a couple of links in the comments section already. But there are so many of us who are not ready to make that step.
Good tip. Thanks for posting. Do you think something like the Sonoff could be used to automatically turn on one machine when a second one starts up and if so how it would be done? Looking for an inexpensive way to automatically turn on a dust extractor when a tablesaw or planer starts up. Thanks
Thanks. I assume you are turning the tablesaw and the planer on manually. So I would go for a general purpose timer circuit (non-smart one). Those usually have many different modes that would be ideal for your case. I made a video of a HY-05 trigger module in the past. Quite popular video of mine. th-cam.com/video/eT3Ie1bMkJk/w-d-xo.html. Or even simpler: get two mains relay (coil is also mains rated). Tap off the switched mains power from the tablesaw and planer each going to one of the relays. The contact side of the relay goes to the dust extractor. Either of your tools will trip one of the relay which will turn the dust collector on. And will turn it off once all your tools are off. If you want to run the dust collector a small amount of time after the tools, you need a trigger module with a delay mode.
Thanks very much for your reply. Very kind. Will watch your video and see if I can figure it out. Cheers
Hey this week sonoff modofied their app ewelink. Now you can open your garage using SIRI in iphone. This is great. Btw i managed to get my garage to open uising your method. Great
Great stuff. Unfortunately Siri integration is missing ewelink.
Csongor Varga you have to delete the app and reinstall and you will see a button for siri shortcut in the scene page
gracias!!! fue muy util el video
I wonder if this works with one of those cheap 15 bucks smart switches on Amazon too, I have a couple of those and I love them. You can even power them from 5V which is great and would mean they're perfect for this application!
I am sure it does. Somebody commented a link a few weeks back. I included that in my follow-up video. That also needs an external supply (that uses a micro USB if I remember correctly). So yes, there are alternatives, although a bit more expensive than a Sonoff Basic.
@@csongorvarga I'm trying to convert my plug into a switch like you did right now. For 12€ (about 14$) via Amazon and almost next day shipping I definitely can't complain for the price haha :) If I'd order a SonOff Basic it'd only cost me 5 bucks tho but it'd take about a month to arrive so yeah, those few bucks more and faster shipping is definitely worth it I think.
This is great, thanks. I'm trying it out now. Is it necessary to connect a neutral wire at the input? Its not connected to anything, right?
That is needed to power the Sonoff basic itself. So it is needed, but with the hardver mod is should not be connected to the output.
I created an Arduino controller and remote to control my garage door a few years ago. Security was accomplished by a "challenge-response" type protocol that I designed... Basically, it would send you a number and you had to respond with another number based on a mental calculation of a response number given the challenge digits... Eventually, I needed to replace my garage door opener and I discovered that the new ones had "increased security" that made it so that a relay connecting the wires for a short time would no longer work... Whereas the old garage door wall switch was just a momentary contact button similar to a standard doorbell button, the new switch had a circuit board in it and there was some sort of messaging protocol that they used... This allows them to still have a 2-wire connection, but be able to control multiple garage door openers and lights... Your system would have a similar problem with this type of garage door opener...
Wow interesting, I never thought these things exists. Although if you are installing the switch inside the hour, I don't see the point of the added security. I mean you are side, you could unclip the door and roll it up. It this all about selling more stuff to you?
@@csongorvarga -- Assuming you mean "house" instead of "hour" and "inside" instead of "side"... The remote was for inside the car... Being an older garage door opener, it did not have the latest rolling codes security mechanism and as long as it was working, I really didn't have any incentive to replace it... Replacement remotes were probably more expensive than creating this... But I already had most of the parts from other micro-controller projects that I've done, so I really didn't need to buy much... I'm retired, so I have plenty of time on my hands to do this sort of thing IF I can just get motivated... :)
The challenge and response messages were obfuscated by placing the few actual bytes of data inside a 1K buffer that was populated with random numbers for each message... This was also encrypted, albeit not with a very robust encryption method since the micro-controllers were rather limited in memory and speed... The algorithm for the response needed to be something that the user can mentally answer easily enough... It could be something as simple as repeating the challenge digits back in reverse order or doing some sort of mathematical operation on the digits... Because it is using a different frequency and communication protocol than any of the normal garage door remotes, anyone using any sort of sniffer to capture codes would likely see it or know what it was even if they did see it... If they really wanted in the garage, they could just grab a sledge hammer and go in through one of the walls, so the security only needs to be as robust as it would take to either encourage them to go to an easier target or to use a brute force means to breach the door or walls... Basically, the idea is that there is no reason to have a vault door on a room that has sheetrock walls... :)
After getting the new garage door opener, I could not tie directly into the wires to the remote wired switch, so I modified the micro-controller code a bit to have it control the power for the entire garage door opener via a relay... Basically, the garage door opener is powered down when it is not in use, so even if someone was able to capture and utilize the rolling codes, it would do them no good since the unit is not powered up... This same thing could be accomplished by using the SONOFF controller and I might consider doing that at some point... I just received yesterday a SONOFF BASICR2 that I had ordered off of AliExpress and started fooling around with it... Typical slow boat from China type delivery -- a bit over 2 months... I haven't decided if it is secure enough for my needs, but for $5.30, I thought it was worth a look to see if I might could find a use for it...