My own board (50mm x 30mm)

[ahhk]

ok, great :) Lets how they look ready....

[GertSanders]

Here is version 2 of my sensor:

[GertSanders]

This post is deleted!

[ahhk]

Maybe its better to open a new thread for this question? ;)

[GertSanders]

Just realised this. Indeed, I will start a new topic.

[GertSanders]

Second variant with the same board. This one actually sends it's messages better (no more st:fail's):

And it's nice and compact. Now I need to find a nice ventilated little box to protect them from dust.

This board is now tested and shared on OSHPark: https://oshpark.com/shared_projects/unP8BmuI

Component values are mentioned in the brd file. I will add a BOM in Excel format later.

[maciejka]

Really great job!!!

[MikeF]

@GertSanders said:

Now I need to find a nice ventilated little box to protect them from dust.

This might work - it's well ventilated; width & depth OK, but don't know about height.

http://www.ebay.co.uk/itm/291147751395?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

[GertSanders]

My dirty dirty boards have arrived today :-)

I actually received 12 boards, so I can make 24 sensors, great succes :+1: !!!

[Didi]

@GertSanders
Please post the BOM.

[GertSanders]

@Didi Here is the BOM and EAGLE files.
selfcontained low power node v1.csv
selfcontained low power node v1.brd
selfcontained low power node v1.sch

[GertSanders]

Preview of my latest board, waiting for prototypes to test this ....


This is a 50x50mm board with multiple powering options (AA or AAA batteries, direct 3.3 or 5V DC, 4.5-20V DC in, 220V AC) and can fit a GSM module at the same time as the NRF24 radio. Allows 2 variants of I2C connection (SDA and SCL on IO header can be swapped via soldering pads). Room for signing chip and some I2C based EEPROM or FRAM memory. Several connectors for digital pins with power.
Fits into this box:
http://www.aliexpress.com/item/Free-shipping-2-pcs-lot-60-58-28mm-plastic-housing-DIY-project-box-ABS-junction-box/2039860908.html

[Didi]

@GertSanders said:

@Didi Here is the BOM and EAGLE files.

Thank you

[pjeterinfo]

@GertSanders Hi Gert, on the small board, did you soldered C2 and C3 on the bottom or on top just under/in the IC socket?

[GertSanders]

@pjeterinfo On one of the sensors I soldered it on the bottom between the two connectors on the bottom.

For the sensors where I add the batteryholder on the bottom, I do indeed solder these capacitors on topside between the legs of the chip. Later this evening I will make a photo of such a setup.

[GertSanders]

This is the small board on an AA batteryholder.

[Carl H]

very good job, i'm very interested to try your board. Did you try to order from
dirtypcbs.com vs oshpark for the price?

[GertSanders]

I ordered from both. From OSHPark because they have a 10-12 days turnaroundtime for me (to Belgium) so I could test faster and Dirtypcb because of price (quality is as good, only ENIG is missing). The boards are shared on both manufacturers websites.

More details here:
http://forum.mysensors.org/topic/595/pcb-boards-for-mysensors/30

[GertSanders]

My AC capable boards have arrived in the mail today, some of these will become repeaters, some will be GSM nodes, I know what to do the coming days :-)

[gloob]

I did also order your red board now and will try it. Do you have a wiring diagram that I can open with adobe reader or something else.