1# BTstack Port for Windows Systems with Bluetooth Controller connected via Serial Port 2 3The Windows-H4 port uses the native run loop and allows to use Bluetooth Controllers connected via Serial Port. 4 5Make sure to manually reset the Bluetooth Controller before starting any of the examples. 6 7## Toolchain 8 9The port requires a Unix-like toolchain. We successfully used [mingw-w64](https://mingw-w64.org/doku.php) to compile and run the examples. mingw64-w64 is based on [MinGW](mingw.org), which '...provides a complete Open Source programming tool set which is suitable for the development of native MS-Windows applications, and which do not depend on any 3rd-party C-Runtime DLLs.' 10 11We've used the Msys2 package available from the [downloads page](https://mingw-w64.org/doku.php/download) on Windows 10, 64-bit and use the MSYS2 MinGW 32-bit start menu item to compile 32-bit binaries that run on both 32/64-bit systems. 12 13In the MSYS2 shell, you can install git, python, and, winpty with pacman: 14 15 $ pacman -S git 16 $ pacman -S python 17 $ pacman -S winpty 18 19## Compilation 20 21With mingw64-w64 installed, just go to the port/windows-winusb directory and run make 22 23 $ cd btstack/port/windows-winusb 24 $ make 25 26## Console Output 27 28When running the examples in the MSYS2 shell, the console input (via btstack_stdin_support) doesn't work. It works in the older MSYS and also the regular CMD.exe environment. Another option is to install WinPTY and then start the example via WinPTY like this: 29 30 $ winpty ./spp_and_le_counter.exe 31 32