Is the K1 fully functional?
I could be wrong but I do not think the revisions where ever tested. Last Word from BKK was his wife going to pick up the new K1 pcb's. He was waiting on these before mailing orders, then my order arrived -k1 pcb's so am guessing there may have been an issue with them.
Am not aware of a third party testing them Bicknellski may have further info on the K1's..
We pulled the plug on our 11000 K1's before the K1's he ordered arrived. So never got to the stage of fabrication.
Email on K1 received from BKK on Aug 2 a few days before we finally threw in the towel because of Yifu failure to deliver the 30 sample chips on time etc etc.
August 14, 2013
Thanks, Everyone for kind words and support.
There's some errors in K1 Nano package footprints on a few parts. I'm going to review them again before posting a parts list update or board revision. Looks like a few parts have 0603 pads for 0402 parts, which is probably workable but not ideal.
My K1 boards have now arrived in Bkk and I should be going to get them within a few days. I'll need to cut them down before packing and shipping.
https://bitcointalksearch.org/topic/m.2961262August 19, 2013
Small update - my wife is going to Bkk to get the K1 boards this evening. She'll pick them up tomorrow and return the next morning. So I should be shipping a lot of orders Thursday/Friday. I'll process them in order as received assuming I get the firmware tested while she's away. The only nagging problems I'll have still are shortage of SS PICS and K1 heat sink delivery. I had both those worked out weeks ago but both have not arrived as expected. The 268 PICs I had shipped have either got lost or stuck in customs. They could turn up any time or not.
The K1 heat sinks I sampled and ordered back when I put the site up have become unavailable. I've worked on substitutions but so far that's not really coming together. I could get flat aluminium and self-fabricate by cutting and bending. Another possibility is a shorter 24mm x 27mm heat sink I do have available here. Since it's not 32mm long it would need thermal adhesive for attaching rather than screws. So that's a possible backup plan.
I'm open to suggestions on the K1 heat sink. I don't really want to give up on them as it's bound to be harder for individuals to dig up something suitable. Places contacted in China via Alibaba haven't been useful either as they've required minimum 1 ton purchases - well beyond what is feasible here.
LAST MESSAGE... then darkness.
August 31, 2013
I'm still here and haven't abandoned the project. I've had some disruptions over the last week as the tile guys that I've been waiting for since March finally arrived and started putting in floors. I've been moving stuff around from room to room, and it's a mess, stuff piled up everywhere. Timing couldn't have been worse, and my time diverted. I'm setting up my workbench and tools again and back working again, though the room I'm in still has no floor and I'll have to move back again in 2 days. If it were just me here I could probably have delayed them but my wife (and other family) presses on me as well. Plus I really need a floor.
I appreciate the kind words above and want to finalize this whole thing so I can move on. I feel like I'm stumbling around not knowing what's actually going to happen regarding Avalon chips, much disheartened by everything, but trying to keep a more positive outlook.