For the mini- radar i need SPI.h .Where to find?
thanks Joop.
SPI.h is bundled with the hardware cores for each Arduino board. So the Arduino Web Editor should just find the file automatically without you needing to do anything.
This is not a library that you would import. The reason is that the SPI library is architecture-specific. Each hardware core bundles its own version of it. All the versions have a compatible, standardized API, so you don't notice that a different version of the library is being used if you're compiling, for example, for an Uno vs a MKR Zero. For this reason, you couldn't just download a universal SPI library that would work for any Arduino.
If you are having some problem with the file SPI.h, please provide more details, including the full text of any error messages you might be getting, and we'll see if we can help you out.