Create ADO.NET adaptor for SQLite

Can someone help explain conceptually how do create a ADO.NET adaptor for SQLite (i.e. generate my own DLLs from SQLite C source code, instead of using other existing DLLs or NuGet to install SQLite. I want to do that as a learning experience but find no information on google.

I will develop in C#.NET in WPF VC2015 x64. Do I compile the source in VC++ as a DLL and reference to it and will the DLL be x86 and x64 compatible?