O.MG Cable

This page will continue to be updated with info about the cable as things progress. My intent is to make these available for many of you, and open source as much as possible. If you haven't seen the video demo yet, scroll to the bottom and look at the twitter embed or go here.

Firstly, the frontend needs some help! If you are good with JavaScript and would like to contribute, please reach out to me on twitter. cnlohr did the heavy lifting on the backend, so there is mostly just frontend work that needs to be done. Corey Harding is currently evaluating a port of ESPloitV2 over to this hardware and code base, so this will be a huge value if it happens. <EDIT Feb 11 - We now have a whole team helping with this so we will not need additional assistance here!>

Secondly, yes.. I am going to work on getting a batch of these made for researchers and those working in the industry. I don't have the exact logistics worked out, but I am sending a batch of these off to be made. Whether I will just hand them out or sell them at a low cost is up in the air, but selling them probably makes this easiest to get it in as many hands as possible. Many are asking about this, so I will keep this page update on the status in addition to posting info on twitter when I have major news.

I spent ~$4k and ~300hrs across the last month chasing this project as a way to also pick up a bunch of new skills. That is a lot more time and money than most people would take, but I was starting from zero on a lot of this. I had not used "real" PCB design software before, used a desktop mill to cut boards, worked with solder mask, soldered things this small/cramped, played with this level of code, etc. I also wanted to do as much as possible on the mill instead of sending the boards off to be professionally made. Firstly, I found the mill for $950 used. But more importantly, the mill allowed me to rapidly test my prototypes. I could turn around a board design in under an hour instead of waiting a few days. I probably made a dozen or so different board revisions due to various failures. So it was amazing for quickly learning through failure.

Bantam, the manufacturer of this desktop mill, has reached out to me so we can polish up the PCB creation process that I created. Hopefully we can make it so others can reproduce this quality of PCB for themselves. Bantam advertises the mill as not being capable of footprints and paths this small (I am also using an older, less accurate model). Also, the solder mask application method that most people use for DIY purposes is much less accurate, more messy, and more time consuming. I plan on publishing a walkthrough on getting boards of this quality once I work with Bantam to make some process improvements.

There will certainly be more learning for me in this project, but I now have a functional prototype to share. And I just barely did it in the window of time I put aside for this while I was taking time off between jobs.