These files are for use with the SD Hex Loader ISP board. See the SD Hex Loader ISP instructable for a detailed description of this project. Launch both the Arduino IDE and the HexLoaderUtility ...

It looked like the best bet was to do Intel hex files and transfer them copy and paste across the terminal. I wanted better, and that sent me down a Saturday morning rabbit hole.

Hello all, I plan to make a small modification to v1.18 to fix the encoder being reversed on my ATS-20+ unit. To check that my build environment is sane, I first tried building the untouched v1.18 ...