Topic: Introducing ATX-Pi (Read 6377 times)

I have recently uploaded new firmware to github that enables the ATX-Pi to automatically resume after power is restored. Should be useful if your power goes out while you are away from your rig.   

https://github.com/KD8SSF/ATX-Pi

"Out of the box" - no. If you wanted to write a script on the Pi to listen for a remote shutdown and then write an interrupt on the Arduino side that watches a pin on the ribbon cable (so your remote shut down script can signal to have the PSU shut off), that would work. There is plenty of available program memory left on the Arduino so an interrupt should pose no problem.

does this somehow offers users the ability to remote shutdown the miners?

looks nice, good job!

Hey all, a little update for everyone: I have pictures of my ATX case mounting plate up now at http://imgur.com/a/HzsU3

Design files (for 3D printing OR 2D laser cutting) available at https://github.com/KD8SSF/ATX-Pi

Sorry for the delay on this. I haven't been home. Pics of it mounted on the standoffs are below. As you can see each board is mounted on a single standoff. This is because neither the RPi nor the ATX-Pi are large enough to straddle two standoffs that line up with the provided holes. The second screw you see on the RPi actually isn't in the board, it's just holding the board in place for me for it doesn't move around. There is a standoff under it and the SDcard is just placed under it so the head of the screw rests on top of it.

Additionally one minor issue I had is that the holes on the ATX-Pi are too small for standard standoff screws. I initially tried to mount it by the hole next to the power switch pins. Bad idea. That edges is too thin around two sides of the hole. But I did that first because there was nothing on the board in that area that could be damaged. So, don't do this. Get yourself a smaller screw that fits through the hole and put a little Gorilla Glue in the standoff itself. Don't fill the whole standoff, just enough for the screw to reach it and push the glue up a little bit around a few threads. As long as you don't put enough in that it comes up and touches the board then it's fairly easy to unmount the board should you need to in the future. That little tiny bit of glue is strong enough to hold everything in place. But if you apply a little pressure with a screwdriver then you can easily break the seal later. There are better ways to mount this if you order the parts I'm sure. But I worked with what I had around my house.

I plan to put my klondike-16s in the 5.25 and 3.5 bays using adapters from https://cp.virtualvm.com/cart.php (https://bitcointalksearch.org/topic/klondike-adapters-and-mounting-systems-246638)

Luckily the extra case I am using has a external LED temp display and a wired sensor which you can see laying between the boards. Case fans and this display will also be run off the power supply that is powering everything so it should be a nice and neat self contained system.

Pictures: http://imgur.com/St8utsm,voSKWow,YLEIUrI

Is it perfect? Nope. But it does the job. Let me know if you have any questions.


Edit: Oops, pictures way too big to put directly in the thread.  

Thanks for stopping by synapseattack, glad to hear you like the board. Would you mind posting some pics of it mounted with the Pi in your case?

Just an FYI for all those interested. I have one of these running with my RPi with MinePeon (Arch Linux). Sadly I'm still waiting on my ASICs to arrive but I spent a good deal of time going through the process of getting the scripts running and everything and this little board kicks ass. I have the RPi and this board mounted inside a computer case with standoffs, hooked up to the cases power switch and it works perfectly. When the power button is press when the computer is already on it starts the shutdown sequence, turning off each of the services before finally coming to a halt and turning off the PSU. This is by far the most important part. Without a proper shutdown of the Pi you risk corrupting your SD card and causing more downtime for your mining controller.

Me and ik2013 stumbled across each other on another thread while he was still in the process of developing one of these for himself. I took a chance and bought one from him and I couldn't be happier. If anyone has any specific questions on getting this setup with MinePeon let me know. If I don't respond to the thread just PM me and I'll come back an comment on the thread. However I found it pretty straight forward.

Definitely worth the 30 bucks since i didn't need to cobble one together myself.

The way things are setup now, if you power cycled the PSU via the switch on it, the board would be in standby again and you would just press the button. If you want it to remember it's state after power off you will have to look at using some EEPROM I guess

I have sold out of my available prototypes, which were sold for BTC. I have two bare circuit boards available that I am willing to part with for BTC, PM for details. Past that there is the tindie campaign ($29.99 USD, $5 shipping to the US): https://www.tindie.com/products/KD8SSF/atx-pi-2/

I would prefer going the tindie route because I believe it will offer better customer service. Easier for me to ship and easier for people to get refunds if I don't. If no one here is interested in using paypal I am open to arranging a group buy if we can get at least 30 boards together.

Well the PSU control and shutdown features only take 1,680 bytes on ~32k bytes available, you could go nuts with other ways to use this board. It's all there you just need to extend it's functionality yourself

Like I said, it has merit in specific use cases, but in general, it may not be cost-effective.  If you can add some functionality to it beyond just a power button, it would be more viable.  

A couple of ideas come to mind.  First, software integration with the Pi so that you could control multiple individual miners and power-cycle a stuck one, or turn on additional miners at set times, when power may be cheaper.  Also, Crazyates mentioned auto-power-on; that got me thinking that it would be nice to automatically power on the system as soon as the power supply is plugged in, so that if power goes out in your area, you wouldn't have to do anything to start up your miners after power is restored.

Side note, I went looking for a cheaper alternative to that breakout board ($9 each, plus about $10 to ship), and I found this item on eBay.  Functional, but certainly not elegant.  The guy sells them for $5.50 each, or five for $19, with free shipping in the US.

Very nice product! One thing the Youtube video didn't mention: Can it support auto-power-on-on-failure? I'd like it to automatically power up if it freezes and I power-cycle the PSU.

Also, are you selling for BTC?

You aren't missing anything except the fact that it also talks to your Pi and halts it when you want to power off. I'm not even that interested in selling anything. I started a Tindie campaign just to gauge interest, if people like the design and want to source their own they are free to do so by visiting https://github.com/KD8SSF/ATX-Pi

If a cheaper board suits you better than by all means use it, I thought there was value in the idea so I produced and shared it. Enjoy

Am I missing something, or is this really just a power button for an ATX Power supply and a Raspberry Pi? How much does it cost, and can you really justify it over something like this?

https://secure.robotshop.com/cytron-atx-power-supply-breakout-board-right-angle-2.html

I just did a random check, and it seems a bare Arduino board with no accessories runs $30.  Add another $10 or so for the other components, and you effectively have a $40 power switch for your $50 Pi. I can see some value if you're making a sealed, plug-and-play miner that you will hand off to someone else (or sell on eBay at an insane markup), but I think for most folks, the breakout board above (or heck, a bent paperclip!) would be more cost effective.

Well thanks for saying that I thought I kinda flubbed it myself. It's all good, maybe I'll take it back on when I can show the miners in action. If anyone is interested I have two bare circuit boards for sale, PM me for details, shipping to the US only (so we all can afford the postage rates lol, nothing against International it would just cost $23.95 to send a simple board).

nice toy, ill want one soon!

nice job on the show last night - I think once folks see the ATX-Pi mounted and working in a case with miners, it'll be clear how useful it is.

Shameless bump

nice solution; will keep in mind if any my projects need this.

I will LaserHorse, thanks!

Nice work - very useful!

Say hi to pt & ladyada for me

Heh, I see. Thanks for explaining.

Thank you for the kind words!

I can see this being incredibly useful in DIY mining by making using a standard PSU easy. Raspberry Pi's I think will come to dominate as a standard gateway for these mining systems to negate the need for external hosts, this little guy bridges the gap nicely to take any guesswork out of powering these rigs with off the shelf hardware.

Nice work  It is going on my needed parts list

Bah!  I can't read.  I thought the talk was of mounting *just* the Pi.  Sorry. 

For 7 of them?

That seems oversimplified to me. I haven't even taken measurements, let alone considered airflow.

Lo-tech works too   

Stickyback velcro doesn't work?

Forum member jdape has several designs for sale: https://bitcointalksearch.org/topic/m.2615862

I would love to work with him on getting something setup to mount a Pi and my ATX-Pi alongside K16s but have not made any inquiries in that direction yet.

Thanks for your interest! You can see more details about kit purchases at https://www.tindie.com/products/KD8SSF/atx-pi-2/

Why tindie? It is like the etsy of hobby electronics, and is integrated with paypal to provide security for all parties. If you pledge to the campaign no funds will be withdrawn until the end of the campaign, and if I fail to ship you can easily claim refunds. As much as I want to accept BTC for payment right now it is not feasible. Using tindie will allow me to place component and board orders instantly upon funding, vastly reducing delivery wait time.

Okay, I'm sold. Where do I buy one 

Are there any accommodations for mounting and cooling K16 boards in a standard ATX case?

What is it?
ATX-Pi is a custom Arduino clone that will control any standard ATX power supply and deliver power to your Raspberry Pi based mining platform. Designed to integrate easily into commodity PC cases, it offers an elegant solution to the problem of housing your ASIC boards.

Let me see it in action
http://www.youtube.com/watch?v=DMrWX3kyayo&feature=youtu.be

Where can I learn more
www.kd8ssf.com/atx-pi

In case you are wondering KD8SSF is my HAM call sign.

EDIT: I will be presenting tonight on the Adafruit Show and tell google+ hangout @ 9:30 PM EST
https://plus.google.com/s/%23showandtell

EDIT 2/13/14: New lower price on tindie: $22.99 plus shipping. This is for a kit, assembly/soldering required.