Roller Shutter
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@Didi: sorry, I am very late on my projects. Busy at my daily job. some projects not presented yet; and those which I started here too..and actually I have some projects in teamworking with Charles from hallard.me...gloups! I don't sleep too much, tired, but it's ok :wink:
So for this project, some changes that I have done recently (thx to @Fabien for his ideas too :wink: ):
- bigger relays and interlocking between them : 1x10A NO and 1x10A NO-NC
- tvs diode, transistors...replaced by MDC3105dual relay driver: smaller footprint
- some reorganization : now I have enough place to make another board and replace nrf with rfm.
These changes mean that it is not a pure dual relay anymore. Too bad for me as I wanted something dual relay+shutter. But I have still my previous dual relay design. So now I have two boards to update! First, rollershutter (I will try to upload my files tonight, I hope, not sure...) and dual relay board (same thing...).Did I say that I have not enough work :laughing: ??
something important to know is this new rev is not tested, and boards not ordered yet. Of course, I have debbuged things, and it should work. I know someone who wants to order it but I have not given to him my files yet. Thanks to him, it is to participate to money and debug, as it costs money to dev...
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SSR is not a good solution because the snubber depends on loads. And zero crossing triac could be a problem with motors (phase between current and voltage). And with SSR you can't have interlocking between up and down (could damage your motor). Finaly in term of space, you have to put a varistor so it's not smaller than the relay scalz use.
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Hi.
I have updated my git and my first post with details about my latest revision of this board :smiley:
I just need to check one or two things on the BOM before upload it too. -
:+1: too fast! I have to run now, ahaha :)
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Board finished.
Test :- ATMEGA328p ok. Setting fuses and loading optiboot/DualOptiboot.
- LED ok :) (blink test) With DualOptiboot you need to reset device after uploading new sketch.
- ATSHA ok with test exemple
- EEPROM ok with Write/read test
- Realys ok wit simple commands.
- Regulator 3.3V Ok
Need to test : Radio (RFM69W) and current sensor.
Some photos :
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great news :) thx for helping me on this :wink:
for AC connection insulation on bottom, I am planning to use pcb varnish and liquidtape. Liquidtape is not so cheap, but can be useful for other things.. -
Hi!
Great news! I've been waiting for this board to be tested and approved.
Is it possible to use the two relays to control two individual lines, for example two different lights? I read above that for the roller shutter function with a motor, the relays were interconnected. But If the use case is plain switching lights, can you work around this easily?
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I have uploaded it on openhardware. I still need to upload the BOM, as I need to make better the linl between my git, I have to enter my BOM manually for the moment.
I will put some real pics soon too, or maybe yours @Fabien ?@martinhjelmare : the first rev I did was like you want, two relays in parallel for individual lines.
But guys asked me (here and at jeedom) if instead, I could interconnect it to protect the rollershutter motor. They were right so I made the change. Unfortunately, this can't be changed on the rev2. I wanted to do it but I had not enough room onboard for route cleareance...
But I will upload my first rev asap, I am already using one at my job. I just need to check if my files are ok ;)@jemish: if it is something like rollershutter node motor, it should work. I don't know what do you mean by windows curtains. Can you show me what is it please?
Last note, the 0-100% opening depends on the ACS712. I have not tested yet on this new rev, nor Fabien. It's in a very good progress :)
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@fets you're right, on the pics, antenna is note present (8.2 cm wire). Height is 2cm. Board size is the same (47x48 mm) for both NRF24 and RFM69 versions.
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@scalz said:
Last note, the 0-100% opening depends on the ACS712. I have not tested yet on this new rev, nor Fabien. It's in a very good progress
How are you doing on the 0-100% code function?
Im doing the same thing for a greenhouse sides opening controller using 2 relays and V_PERCENTAGE.Im not having great luck at the part of passing the value from the controller to the function to execute running for X number of milliseconds (will add the current sense you suggest later it is a great idea but trying hardcoded travel time for now)
Just wondering if you had any code to share that could shed light on my current project.
thanks
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@jserfaty I will try to share some code as soon as possible, sorry being late on this. Bzzz, bzzz I'm like a bee sometimes :laughing:
In sketch, I will have two options:- automatic calibration with current sense..
- or a fixed calibration, a time travel set in sketch.
So I will try to look if I have nothing ugly in my sketch asap (there is already someone waiting for this ;))
And a note, for others, about the board, I'm thinking to reduce size if possible to fit better in wallbox but I would like to keep hilink. -
Maybe look at this one: Arduino shutters
I am using this one with my 8ch relay board. Working fine here!
