Roller Shutter
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@rvendrame: exactly, I saw my mistake today. I will update files soon.
@tbowmo: thank you for advice. next time I will think about it.
For mysensors kicad project, wow, thank you for the link. team mysensors is making a great work. I noticed last weeks there is a kicad movement.
Too bad I started to learn Eagle some months ago and I am just starting to like it. What I like too with eagle is lots of libs, and that I can get some footprints at farnell. But in other hand when I see all of your projects with 3d rendering, it is very hard to not have a look. And kicad is opensource...and if I can contribute.. -
I updated screenshots and my github files. Now I think it can handle 12-220v motors. I had to change screw terminals (it was 5mm before, 3.5 now, i hope it is good). I have no place for capa snubber (too big unfortunately ) it will have to be external if needed. And I removed fuse too. Because it could change if 24v or 220v motor (not same current for 90w-24V and 90W-220v) and it is not easy to place it. So it will have to be external too if needed.
In case using 220v motors, now it needs to tie together Source and 12_220(Live) at the screw terminals.
I will see if I can make it better and smaller in the future (to put it in wall) and designed with kicad:wink:
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Hi,
So, I tried to reduce size board to be able to fit in wall. I thought about using switching ic or to use sealed ac dc step down. not very easy choice but I keep the sealed (for galvanic protection), because I think it should not gain so much space finally and sw ic is more expensive to use. RFs footprints, atmel, eeprom... takes place too.
Here is how it looks for the moment. I just tried 3d for eagle to see so 3d rendering not complete.
It is 42x43mm
Top: power, relay, ldo reg, eeprom, ftdi connector.
Bottom: atmel, atsha, acs712, nrf smd & rfm footprint
it is almost 0805 (i am just seeing I missed 2diodes).
But as you can see there is no snubber? I am thinking to add a capa only. Do you have a good not expensive ref smd that I can put on bottom.??
And there is no AVRSPI connector for the moment I need to find a little place for it, not easy.
Any remarks?See you soon
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@Fabien @tbowmo: thank you very much for your feedback.
So no tracks under the chip, or on the other plane? Arrgh, I will try. Is it related to nrf because on moteino designs it seems rfm don't care about it? Anyway I don't want to have problems. I don't know how I will do that but I will see this evening.Last night, I added spi for programmer so it's cool. I found capa for snubber but 2220 size...And for small SSR, I thought about it but the board must handle 12/24v motors too so current won't be the same and small SSR won't like that. That is why I choosed these relays. I want to be able to handle 12/24 and 220v so the board would be useful for lots of application.
I was lazy to move to kicad but I will move for sure :flushed: -
@fabien: so not under chip, but other side of board is ok i think? Anyway, I think I will have to do some reroute. Not easy. I am not electronician. I'm database soft archi. So I have not done lots of pcb yet. I am learning.. but at my job I played a lot with mikroelectronika even if I am not in charge to design pcb.
And I think I made a wrong choice with eagle (I saw lots of libs so I thought it would be easier. But I have to make lots of parts myself so...).
Here what I did last night : moved ant smd for rfm, spi connector, and 3d model for stepdown. Not a lot of things. And, tried to place snubber, but not good, clearance drc errors..I am thinking to add snubber externally.
Next screenshot I hope all will be ok :smiley:@tbowmo: which tools do you use to create 3d models for Kicad? I tried Sketchup yesterday but don't like interface as I usually use Solidworks at job when needed. Would be great if I could export Solidworks to kicad, I will see if it's possible..
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rfm modules have an external antenna, that is why they can be mounted like they do on moteino boards.
NRF modules incorporates an anteanna, and you need to keep the anteanna area (+ some space around it) clear of components and tracks. on both sides of the PCB. Otherwise they will interfere with the antenna radiation.
I use the build in 3D viewer in kicad. (Using almost bleeding edge of kicad on linux, with additions from CERN)
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@tbowmo: thank you for your explanation. So I think it is not a good news for me (nrf24) aaaaaaa I will loose my hairs on this:sweat_smile: even if I plan to use rfm, my brother have a lots of nrf24. I think he will need move to rfm. But I will try, big challenge for me.
For kicad, interesting info, thanks. -
@Fabien: I have an idea for nrf24 problem, maybe dumb I don't know.
- on bottom of nrf, paste piece of paper
- then add a piece aluminium sheet or anything else with a wire to connect it to gnd
- then paste another piece of paper
Do you think it could work? Or maybe antenna will not like the ground plane...
just ideas, in case.
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I have the ftdi header on the sensebender board mounted on the atmel chip side (opposite the radio) and have not had any problems with radio range or packet loss. My deployed sensebenders are all between 3 and 7 meters from gateway or repeater.
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@tbowmo: ok. so in my case it is not a good idea to put 2 radio footprints as it will increase size. As I have already done the job, I will make 2 versions. easier.
In the other hand, the mini pro version (a little bigger) I have already traced could handle both radio with some minor change.So, I have now all recommandation I need. So I am able to finish it and send to fabhouse for test. I will inform you when board and sketch all done.
Thanks again to all. -
Hi @scalz
A question, there is a reason to do not use an encoder instead of the acs712 and the stop buttons to know the position of the shutter?
Cheers
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Hi.
I am not sure what do you mean with "stop button" (end stops?) and encoder. I have made this board for multi purpose, not rollershutter only. And in dualrelay, I can know power consumption too.
I need to update 3d view. But my schematics and pcb are my latest rev. I am waiting for my pcb (end of the month).
Maybe there are other good ideas as I am not electronician. But I have learnt a lot at my job and thx to internet:smile: -
Hi.
just to share :smile: as I have received some boards today. so here a screenshot for rollershutternode.
It is not soldered yet, I just wanted to see if my hilink, relays and nrf footprints was ok. it's ok! but too bad I forgot to order varistor and fuses (fuse will be between the screw terminals, and varistor on right bottom corner...
these boards was ordered at Seeed. -
@jemish: I will test it on somfy rollershutter (220v motor). but the board can be used with 12-24-110v motors/load. and I need to finish the rollershutter sketch too and check everything.All will be ok in maybe... two weeks I hope.
