Gateway device

[tbowmo]

@ServiceXp

I just received the PCBs for the second prototype spin yesterday, the first spin had too many errors in the routing around SPI / UARTS so I decided to ditch it, and do a second spin. Dirtypcbs got some hickups processing my gerbers but finaly made the boards.

I hope that I can get around to assemble one this weekend, but I can't promise anything, as I have been loaded more than 150% with work (both from my employer, and from the wife).

[RJ_Make]

@tbowmo Sounds Good, Thanks for the update.

[tbowmo]

Images of the latest pcb's (Before SMD assembly)

Unfortunately I "injured" my back today (aah, maybe not injured, but feels like it :() so I'm on strong medics to keep the pain away. That means that didn't get around to do the SMD assembly today as I planned, as I can't sit at the desk for a longer time.. hope that it gets better during the weekend.

[RJ_Make]

@tbowmo Oh now that is sexy.. From someone with back problems, you take it easy for the next 3 days Sir!! :point_left:

[tbowmo]

Aahh.. I'm back in the man-cave. Been too long since I had a chance to power up the soldering irons..

Anyways, I've mounted the first of the second prototype spin, so next up is getting firmware written, and tested..

[scalz]

@tbowmo: it looks very nice. I like the way you place components. I think I need to look more at your design and learn :wink:
With a firmware, it looks promising :smiley:

[tbowmo]

@scalz

Thanks :) I hope that I at least can get some LED's flashing tonight :). And then perhaps the bootloader programmed.

/ Thomas

[tbowmo]

And we have lights..

https://www.youtube.com/watch?v=SHNmJMJg2b8

[scalz]

yeah :smile:

[tbowmo]

A small update before I hit the bed tonight..

I've got radio up and running on the SAMD, and got the first message from one of my sensebender micros through to my pc.

It's still in debug mode, using a serial port on the samd as output (And my logic analyzer to decode the serial stream). So no ethernet / wifi or the like up yet.

The next step will be to have it use USB instead of the serial port..

[Anticimex]

:+1: good work!

[sundberg84]

Great! I will buy one of these as soon as this is working as you want :)

[alexsh1]

Wow - excellent! I'd buy one

[tbowmo]

a new small update..

Got it working as a serial GW.. Receiving the first messages from one of my sensebenders..

Also got the ethernet going, this is not integrated with the mysensors parts though, as I have to refactor nrf / ethernet libraries a bit, in order to support multiple (HW) SPI interfaces..

[TD22057]

@tbowmo said:

Got it working as a serial GW.. Receiving the first messages from one of my sensebenders..

Also got the ethernet going, this is not integrated with the mysensors parts though, as I have to refactor nrf / ethernet libraries a bit, in order to support multiple (HW) SPI interfaces..

Sounds great. I'm definitely interested in using this as a gateway as well. Any chance you're going to add SPI transaction support to those libraries (more info in my post here)? I know there are RFM library versions that have that as well (see here).

[tbowmo]

@TD22057

Here is more hw spi ports available on this beauty. So radio and ethernet is separated on their own spi bus. There is a 3rd spi bus available on the MYSX connector, that is at free disposal to the end user.

[TD22057]

Nice - I forgot that you upgraded and weren't using a 328 processor.

[tbowmo]

A small Christmas progress update.

I got external eeprom, and w5100 module running now.

That means I have a working ethernet GW running with nrf24 running on SAMD.

I'm waiting for rfm69 modules from China before I can verify that this part also works as expected.

An ethernet GW with hw signing is using 35.988 bytes, or 13% of the available flash size, which is 256kbyte. So we have "plenty" of room to do other fun stuff on the GW

[tbowmo]

I have updated the original posting, with updated hardware details.

• Removed the ESP8266 from the feature list (It's supporting the mysensors library native).
• Removed onboard SPI flash, but will probably add sdcard / micro sdcard reader
• Might add battery backup for an onboard RTC.. (the SAMD have an onboard RTC, only using 2-3uA in low power RTC keep alive mode)

[scalz]

@tbowmo: I love your project , I can't wait to try your awesome baby GW :smile:
I agree with you with your updates too. RTC could be interesting.
Humm, when I see price and memory, I am very tempted to update one of my sensors board with atsamL21 family to give a try...do you have an advice for a good&cheap jtag programmer???