💬 MySensors Stable Node

[Slorf]

Sorry, i am confused :-(

How do i recognize the 4.7uf polarised capacitor ?

Thanks !!

Alex

[Koresh]

@Slorf https://en.wikipedia.org/wiki/Micro- :smiley:

[Slorf]

This would be the first pcb's i order, how do i know which component goes where on the pcb ?

[Slorf]

@Koresh

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.