He asks why Arduino forked Wiring instead of continuing to work with him, and the answer is absolutely clear — Arduino was taking it for their own. And they could.

To support rapid product development and prototyping, TRINAMIC offers a complete TMC2660 design kit with evaluation board, as well as an Arduino daughter card (shield). About TRINAMIC ...

If you want to attach a light, motor or sensor to the Arduino board, you just snap it on -- you can spend more of your time coding rather than dealing with wiring and other hardware hassles. Home News ...

You can find the detailed steps for creating Arduino wiring sketches in the Arduino Wiring Project Guide. In addition, here is a quick summary: Setup your device with Windows 10 IoT Core.