💬 NRF2RFM69

[tbowmo]

It was just a quick one I created today on openhardware, so not finished yet..

I'll order a batch of them one of the next days (just need to panelize them).

They are perhaps 1 or 1.5 mm wider than the normal NRF module, as I have used the dimensions from the Sensebender as a template..

[Anticimex]

Nice. Will you also create a KiCad part for this?

[tbowmo]

Perhaps.. and throw it into mysensors kicad repro? :)

[Anticimex]

Exactly. Suppose it could just be a copy of the current nrf24 footprint but with extended courtyards.

[GertSanders]

Some time ago, I saw such a converter board on OSHPark. If I find the link again I will post it. But this one seems more compact :-)

[GertSanders]

Here is the link to a similar board: http://hallard.me/rfm12b-breakout/
BRD files and link to OSHPark are available, it's open source as well.

[tbowmo]

@GertSanders

Yes, that I have seen as well. but it's a bit larger than my design :) I'm trying to make it as small as possible, so I can use it with sensebender (preferably it would be same size as NRF module..

[GertSanders]

@tbowmo Indeed :-) smaller is better.

[scalz]

Cool. I have some Charles board (hallard.me) but these are nice too ;) Maybe you already know it, but if you want rfm69cw is a little bit smaller. It works like rfm69(h)w, but not pin compatible. I don't know why they did this..

[PostaanErik]

I use this NRF modules:

http://www.ebay.com/itm/Mini-NRF24L01-SMD-1-27MM-wireless-transceiver-module-Small-Size-/400489040899?hash=item5d3f01cc03:g:OS8AAMXQaOVRk6PR

[blacey]

Very cool Thomas - just ginned up some OSHPark compatible gerbers from your repo... Sweet!

What value are you recommending for the cap?

[tbowmo]

@blacey

Hmm.. just a 10uF or something.. Don't know if it's needed at all.. I just added it as a "nice to have feature" :)

I have squeezed the outline a little bit though (haven't updated on github yet though). as I'm trying to put as many as possible on a 50x50mm pcb.

[scalz]

@tbowmo: +1 :) plus it may help to absorb current spikes in TX on battery which can help to extend its life I think... rfm69 is a little hungry boy. 10uF, nor 100uA, is maybe not enough to bufferize on transmit but we could dream a little, what I am doing :laughing:

[Cliff Karlsson]

Witch file do I upload to Dirtypcbs to get the panelized version?

[tbowmo]

I've added the panel design to dirtypcb's store.. So just order it from the following link

http://dirtypcbs.com/view.php?share=16378&accesskey=4e199dccdf623eab0c90fddbc4786f80

[tbully]

It would be great if there was a version of this that had line level converters built in. (For those of us using non 3.3v Arduinos)

[A Former User]

@tbowmo Is this a complete module with components? Because 10 pcb for 41$ is a bit expensive.

[tbowmo]

It's because PCB way don't like panelized pcb's. So they charge it as 3 separate pcb's. If you follow the link above to dirtypcbs, you'll get the panel. I'll have to create the gerbers for a single board again, and upload that to oh, before we can get a normal price there.

[shabba]

@tbowmo I used the dirty link - I don't like that you get no contribution. Have you a paypal or something I can make a small donation to?

[tbowmo]

@shabba

dirtypcb's do have a cashback thing in their "dirty pcb shop" so I should receive 1$ per order.

If you feel the urge to spend some paypal money, you are welcome to chip in on the mysensors project with donations :)