Odroid H2

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6 years 10 months ago #152892 by blazini36
Replied by blazini36 on topic Odroid H2

jfuerst wrote: I just ordered one of these. I too prefer to just tuck it into a din rail and forget about it. We'll see how it goes.


Lol I just got 4 more H2's delivered. Everything from my NAS to a couple more projects are getting one of these. It's a pretty convenient little board and surprisingly competent. I've got various ARM boards running some appliance tasks and they do a pretty good job but the H2's can do most a bit better.

scottlaird wrote: Another option: I'm using a "Fitlet2" ( fit-iot.com/web/products/fitlet2/ ), which is a tiny, DIN-mountable PC with up to 4 PCIe Ethernet ports. The basic model is a bit over $200, and isn't *that* much bigger than a Raspberry Pi. Out of the box, the latency isn't great, but it's good enough for Mesa or Ethercat hardware. It runs on 12V DC out of the box, and it's apparently possible to special order a ~12-30VDC model, but I didn't want to wait.


Ahh thats where the Mintbox comes from. The fitlet only allows a single DDR3 SODIMM, while the H2 has Dual channel DDR4 SODIMM sockets, how much it matters for a machine control PC I couldn't say but my own use case benefits from dual channel. Is there any "standard" way to sort of benchmark latency? I just put another H2 together and haven't loaded an OS on it yet but I'd be curious to see what the latency of the H2 looks like compared to the fitlet.

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6 years 9 months ago #153969 by The_wolf_of_walmart
Replied by The_wolf_of_walmart on topic Odroid H2
In the process of planning my first plasma build and am looking at computers. Currently considering this one on Amazon as it seems to be good price point for performance with the discount and addition $20USD off coupon.

Can someone explain the significance of having more than one ethernet port/NIC like the Odroid has? I'll be using a 7i76e so I just want to make sure I shouldn't be looking for something with more than one ethernet port.

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6 years 9 months ago #153982 by blazini36
Replied by blazini36 on topic Odroid H2
The N3350 is only a dual core CPU where the J4105 is quad.

You don't need the 2nd ethernet port for anything with LinuxCNC unless you want to do modbus over TCP or something, but if you want to do anything with an ethernet port outside of LinuxCNC and your using a Mesa ethernet card......well then youd need a 2nd port.
The following user(s) said Thank You: The_wolf_of_walmart

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6 years 9 months ago #154060 by jfuerst
Replied by jfuerst on topic Odroid H2
I'm using the 7I96 Ethernet Mesa card. One ethernet port is dedicated purely to running that mesa board. The other port is plugged into the home internet so that I can cruise the internet etc. I didn't want to burn a USB in order to get wifi as I've utilized them as shown below:

1) usb 485 to Spindle
2) usb touch panel for display
3) usb wireless keyboard and mouse
4) front panel usb bulkhead for attaching usb sticks on the outside of the control box

Ideally I would have gotten a touch screen with a USB hub in it and moved my mouse and keyboard to it and that would have freed up a usb to use with a wifi dongle.

So in this case the second ethernet port is useful.

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6 years 9 months ago #154396 by blazini36
Replied by blazini36 on topic Odroid H2
Tying up an ethernet port with a Mesa ETH card makes it pretty convenient to have a 2nd gigE port on board.

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