by cmos-dronergithub.com/cmos-droner/UM-TSS
This is a circuit by Jacob Watters (check the original block post), I just did the PCB-layout. In agreement with Jacob this is released here as open hardware. Hopefully you enjoy the project and maybe you can even improve it!

Imported from a public repository by cmos-droner. View the source
MIT — MIT: reuse and modification are permitted, with attribution to the original author.
Is this yours? Claim it by signing in with the GitHub account it was published from.
heypcb keeps a picture and the design files for this board, and there is no project behind this page until somebody opens one. Opening it makes a copy on your own account — the original stays where its author put it.