💬 MySensors Stable Node

Slorf

How do i know it;s a polarized version ?

There are these ( which i think are the wrong ones )
http://www.aliexpress.com/item/Free-shipping-0805-SMD-capacitor-4-7uf-50V-475Z-100PCS/32376068362.html?spm=2114.01010208.3.40.rvV9hM&ws_ab_test=searchweb201556_9,searchweb201644_4_505_506_503_504_10020_502_10001_10002_10017_10010_10005_10011_10006_10003_10021_10004_10022_10009_10008_10018_10019,searchweb201560_2,searchweb1451318400_-1,searchweb1451318411_6452&btsid=833ff5df-930f-4fd8-8530-cb280a1b9c7f

and there are these:

http://www.aliexpress.com/item/Free-shipping-100pcs-lot-475K-X7R-25V-0805-4-7UF-SMD-capacitor-Chip-Capacitor-Electronic-Components/32607720756.html?spm=2114.01010208.3.207.rx4LMW&ws_ab_test=searchweb201556_9,searchweb201644_4_505_506_503_504_10020_502_10001_10002_10017_10010_10005_10011_10006_10003_10021_10004_10022_10009_10008_10018_10019,searchweb201560_2,searchweb1451318400_-1,searchweb1451318411_6452&btsid=0572ec4f-a6b5-44fb-aa59-70649256d584

Koresh

@Slorf OK. Use non-polarized (ceramic) capacitor 0805 4.7uF and polarized 10uf (yellow 3216) capacitor. I've changed bom.
I've uploaded assembly pdf too :).

Slorf

@Koresh

Thanks, i found everything on Aliexpress, except:

Push Button SPDT
Resistor 1M ( which package size )

Alex

Koresh

@Slorf
Resistor 1M ( which package size ) - unnecessary element (R1 can be mounted for backward compatibility with nRF24L01, nevermind)
Push Button - use any buttons like these http://ru.aliexpress.com/item/10-Pcs-x-Sealed-SMD-Momentary-Tact-Tactile-Push-Button-Switch-3mm-x-6mm-x-2/32600602500.html?spm=2114.30010708.3.10.QkNxnX&ws_ab_test=searchweb201556_6,searchweb201644_3_505_506_503_504_301_10020_502_10001_10002_10017_10010_10005_10006_10011_10003_10021_10004_10022_10009_10007_10008_10018_10019,searchweb201560_3,searchweb1451318400_-1,searchweb1451318411_6451&btsid=efafd213-4a02-41ac-8d40-b5e9982a58f1 :wink:

Slorf

@Koresh

Thanks

Will search and find the cheapest offers on Aliexpress :-)

Slorf

@Koresh

Hi,

When I try and order the pcb's from dirtypcb I get the following error:

PCB #17568: No board outline (.GML/.GKO/.GBR) file found.

I made a zip file with cam.drl, main.gbl, main.gbo, main.gbs, main.gtl, main.gto, main.gts
when I try to upload this on dirtypcb I get the error message that there is no board outline.

regards

Alex

Koresh

@Slorf It's openhardware.io engine problem. Engine had removed some files from my zip. Use files from this complete archive (gm2 - mechanical layer, rename it if its nessesary).
0_1456686721977_nrf_17_01_fabr.zip

hek

@Koresh

.gm2 was a new extension I didn't know about.
I've updated the file extraction engine. When you get a chance, please try uploading it again.

Koresh

@hek
Thanks for quick fix :)
gm2 = gerber mechanic layer2. So there are many variations of file extensions. I think it would be perfect to add ability to attach a file with custom extension or raw zip\rar without extraction.

Slorf

@Koresh

I renamed the gm2 file to gml ( see: http://jrainimo.com/build/?p=642 ), and was able to order it from dirtypcb.

Alex

Koresh

@Slorf One detail.... If it is not so late - please change your order (sorry...). Board thikness must be 1.6mm (antenna tunned for this value). I've changed board description.

Slorf

@Koresh

I mailed the people at dirtypcb, hopefully they can change it for me.

If they cannot change it, would it be possible to get rid of the antenna and mount a pa/lna antenna ?

Regards

Alex

Koresh

@Slorf Do not worry. Antenna will work with any board thikness, but with 1.6mm (with current geomerty configuration) it will be optimal. Almost all china nrf modules (I've seen) have non optimal antenna geometry.
PS
I'am sorry :( I hope dirtypcb will change you order.

@Slorf said in MySensors Stable Node:

it be possible to get rid of the antenna and mount a pa/lna antenna ?

It is possible, but its very non technologically...

ahmedadelhosni

Great board.
Did you test the performance ? Like number of recieved packets per second ?

Slorf

@Koresh

Let's hope the change it :-)

Would it be possible to mount something like this on the pcb ?

http://www.aliexpress.com/item/New-SMA-female-jack-PCB-board-mount-right-angle-RF-coax-adapter-connector-converter/32588385730.html?spm=2114.01010208.3.2.S4UqzO&ws_ab_test=searchweb201556_7,searchweb201644_2_505_506_503_504_10020_502_10001_10002_10017_10010_10005_10011_10006_10003_10021_10004_10022_10009_10008_10018_10019,searchweb201560_3,searchweb1451318400_-1,searchweb1451318411_6449&btsid=91e89a18-89b4-43d2-bbab-ea422e14d360

Slorf

@Koresh

Couple of questions :-)

How to mount the second Quartz crystal ?, there are no holes in the pcb

The LDO regulators are mounted next to 4.7uf capacitors, is it correct that the regulators and capacitors are connected to eachother on both sides ?

On the photo of the assembled pcb it looks like this, but on the photo of the plain pcb and the schematic it look different.

                                           | Pin 1
                                          IC3
                             Pin2    |          | Pin 3
        Are pin 2 and 3 also connected to the capacitor left and right pin ?
                          Left pin   |    C14   | Right pin

Thanks !!

Alex

Koresh

@Slorf
Q1? Q1 is smd quartz. Q2 can be smd too but it can be difficult to mount it (so I've placed holes).

I do not understand about LDO. You can check pinout in datasheet http://www.torexsemi.com/products/voltage_regulators/data/XC6206.pdf . May be datasheet schematic model (picture) is different from my library schematic model. But schematic and layout are correct.

Slorf

@Koresh

Hi, the bom says 2 x quartz crystal

I did not know they where different and one should be smd.

Could you tell me which quartz crystals I should get ?

Will check out the datasheet for the LDO :-)

Thanks

Alex

Slorf

@Koresh

Found the smd quartz crystals :-)

Alex

Koresh

@Slorf I've left the package field in bom blank, so you can use any crystal you have. All components on the board are smd, so crystal should be smd too if you have it. But it may be difficult to place smd crystal as Q2 (too small area) and I've placed holes. I have both SMD and THD crystals but I will put holes in Q1 crystal pads in the next version too. Now you can simply mount THD crystal on the pads, it's not difficult.

@Slorf said:

Would it be possible to mount something like this on the pcb?

It's possible. But I want this board to be as compact as possible.

@ahmedadelhosni said:

Great board.
Did you test the performance ? Like number of recieved packets per second ?

Thanks. I've tested stability (for some months without troubles in typical applications) and RF range. I think it doesn't make sense to test performance with low performance mcu, but you can propose the sketch and I test with it.

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