SuperHouse #22: AXA electric window motors controlled by LIN bus and Arduino

29 Comments

1. 

   What a great sun room. The interior supports for the windows act as a heat sink. Window support structure needs to be on the exterior of the windows, preventing the reflection and heat sink effect.

2. 

   Thank you Jon! I agree with you and the others that seeing the pros and cons is a fantastic learning experience! I believe your explanations of the possible solutions were very valuable, entertaining as really solidified the understanding! Appreciate your willingness to share your time, money, and effort for all our enlightenment! Hooked on SuperHouse Scott!

3. 

   im so jealous the amount of the knowledge that you have got 🙂 the world needs more of you !!

4. 

   So I totally appreciate this guy is very intelligent and smart but I completely disagree with his philosophy. Adapter boards were great, but the he adds all kinds of complexity just to have wired control. I was him I would have just slapped a couple of esp8266s to the motors and called it a day.

5. 

   Hi
   I just found, this video was one hour, and i watched it, not moving a muscle., That's rare for me.
   So… what this possibly could mean?
   ?

6. 

   Everytime he says "moda" I have to think what it is.. First thought is a modem.

7. 

   For sure I expected there to be a temp/humidity in the room itself, to open up when you are at home!

8. 

   Great video, thank you posting. I get exposed to a lot of tech that I did not before watching your videos.

9. 

   Since this video started, iv,e had a dump, shower & walked the dog. LOL. but seriously a good video.

10. 

    Interesting, with your setup you could simplify it with the following changes:
    Use the twisted pairs for the data
    Dedicated low voltage wires for the power
    All 4 chips on a single shield

    This would solve the interference issues, and allow you to bring power at the same time, though the main downside is that you would need a breakout system at the windows.

    My prefered setup would be to have 4 dedicated ethernet cables, which would plug into a single shield. (The connectors would be on the outside of the case, with wires connecting them to the shield, which makes it easy to rack mount the design in a 1U case.)

11. 

    Unfortunately my house was constructed about 4yrs ago with traditional power line style. Now looking for CAT5 replacement to

12. 

    Hello Jonathan,
    I can see that on the LIN BUS CHIP you have chip select on them, why are you not using that to select the individual chip you want to communicate to, bridge all the serial TX and RX to an UNO RX and TX so that you can cut down the cost of the project. I see that you need CS to be connected to VCC, so connect the with pull down resistor to ground and then using a current limiting resistor you connect the CS to digital ports on the UNO and then select the CHIP to receive commands.

13. 

    Put finger joints on your laser cut box, it makes it so much easier to assemble and glue

14. 

    Great system dude! For the crosstalk issue i'd changeup your pinout, For-Example: Use Solid colors in the Cat5 cable to handle the LIM data then pick 2 stripe colors for DC+ and the other 2 for DC- That way you have minimized parallel capactive coupling between the pairs.

15. 

    Great video, and I love how you showed your learnings along the way.
    I also like your rules regarding where to locate your automation gear. I built a walkway through my roof space when I built the house, so I thought it would be a great place to put my house control gear. Unfortunately I need a ladder to get up there to my main home controller unit. Never again!

16. 

    Please always give me the long version as you have helped me so much

17. 

    I can’t believe this, because we have blinds and fly screens it’s a hassle to wind the windows in and out so this might be my solution, my only concern is how long will the battery last

18. 

    What motors/equipment are you using to control the Shades in the conservatory?

    I’ve seen there is AXIS (Coming soon) and MOVEZ (Coming soon) but wanted to know which ones you used and I couldn’t see a post / reference to it elsewhere.

    Thanks.

19. 

    Fantastic video, and refreshing that you show all the mistakes and learnings rather than typical on such howto videos where everything goes off without a hitch!

20. 

    That is weird! If you cannot address the motors on the bus, it really does not make any sense to even have a LIN bus, I can simple do that with two wires and a DPDT relay (that's what I did in my green house). The people at AXA have to do some work to get this right.

21. 

    Effective pedagogy! Awesome and rich of lessons of life and approach of problems. Thanks you very much. Your videos are instructive, very helpful and give optimism and enthusiasm to learn. Explaining your design the way you do is fundamental for understanding the whole picture. I just discovered your channel, your gorgeous channel. I'll recommend it to my people. Vive l'Australie! from one another down-under island, Madagascar.

22. 

    You are way down the road from where ever I might ever get, but I admire your thought process, when it doesn't work as expected, keep screwing with it until you figure it out. Your videos are great because you admit/show that crap happens and you just keep working on it, for a solution.

23. 

    @ (30:00) dat dat data data da… D O double G. SNOOP DOGG

24. 

    Fascinating stuff, you explain things so well.

25. 

    For current inrush on motor start you could stick big capacitor in parallel with power in the empty battery compartment of each motors

26. 

    Great video. Those AXA units retail for about ~£120 in Uk. I suspect you got them free or in a semi-free deal? I think a much better option is using the ACK4 230v Electric Window Opener. What I have. Costs about £120 here in Uk. Use with relay and ESP8266.

27. 

    Please, please, please get a video camera with face recognition. It's really difficult to watch your videos with your face slightly out of focus and the shelves in the background in focus. I find after about 5 minutes I have to look away, as I get a headache from my eyes trying to keep getting you in focus. I've watched a lot of your videos and the content is fantastic, really interesting and well presented.

28. 

    Hi watched a sonoff video and lo your channel popped up in my feed so have watched several of yours now……Google knows! I have similar windows (woooden noy metal) to you so I enjoyed this though (a) finance committee would not pass the budget (b) My skillset and toolbox in accountancy wouldn't fit well with going the whole way down this project and (c) How does your system handle sticky windows what is the torque? Finally I use Visual Basic code in a couple of my work functions and are surprised by the crossover in code syntax between what i use and what you used. Anyway looking at roller blinds and possibly using hacked RF toy car motors like the Soma Smart Shades – Soma Smart Home but Amazon dont ship and nothings cheap in Australia…maybe a project? Again Torque is an issue as I want one turns the blind cord not the tube itself also solar.

29. 

    Given that each device on the bus reports a 200 OK, wouldn't a more elegent solution to sending a command to all 4 devices on the bus be to wait for the 200 OK before moving on to the next device, Instead of using an arbitrary delay? This way you are guaranteeing receipt instead of assuming it.