Recently, I took a break from working on this project to keep up with school and work on a few other more pressing things. However, when summer came along, I decided to continue to work on the ZTO-80.

So far, I've done tons of behind the scenes work to improve the project. I've ported nearly every board to KiCad, and redesigned the SBC into version 3.0, which adds more functionality and customization than the last boards in the series. I'm beginning to think that this is the most I can fit on an SBC (look at all the traces!), and so I'm planning on making a modified version of the backplane that can attach to the SBC.

One of the biggest changes I've made is creating a GitHub repository for the project, where I'm now hosting the latest versions of all ZTO-80 PCBs, along with the latest port of BASIC. You can find everything you need to make the project there. Whenever I make changes, I upload them straight there, so you always get the latest revision. Currently, I'm still modifying and finalizing the designs, so I would hold off until I test the designs before you order your own PCBs. You can find a link to the repository in the links section of this project.

Another thing that I've made is a full user's guide to the SBC. It includes everything needed to get started with the SBC, including a BOM, assembly instructions, and software installation instructions. You can find it in the GitHub repository under PCB/SBC/. 

Also, I'm creating a Tindie store to sell the SBC and modules for those who don't want to deal with having them fabricated themselves. The first product, hopefully coming in just a couple of weeks, will be the SBC. I plan to sell both the bare boards and also kits with all the parts included.

I have prototype boards for the SBC v3.0 on the way from JLCPCB right now, with an estimated delivery of Friday, so you can expect an update then.

In the near future, I plan to give this project page a much-needed overhaul. Stay tuned for that.