The 1-Wire protocol is a proprietary protocol (Maxim/Dallas) single-wire interface, half-duplex, bidirectional, low-speed and power, long-distance serial-data communication protocol. It operates over a single data line, without clock signal. But, at least two wires are required for 1-wire bus: Data, GND. An additional wire might be necessary (Vcc), depending on powering mode. The powering modes are: parasitic (no vcc), and conventional (with vcc), as seen on figures below.
For a brief user-level introduction to CMake, watch C++ Weekly, Episode 78, Intro to CMake by Jason Turner. LLVM’s CMake Primer provides a good high-level introduction to the CMake syntax. Go read it now.
After that, watch Mathieu Ropert’s CppCon 2017 talk Using Modern CMake Patterns to Enforce a Good Modular Design (slides). It provides a thorough explanation of what modern CMake is and why it is so much better than “old school” CMake. The modular design ideas in this talk are based on the book [Large-Scale C++ Software Design](https://www.amazon.de/Large-Scale-Soft