Install nBlocksStudio and mbed-cli

• 3 minutes quickstart video
• Handbook

Import existing program from online compiler

• From online compiler right click on the project and publish (or FORK) in to something like this: frequency_counter

  If the project is copy from somebody else's project, probably have to fork to your own mbed space

• With administrative rights,

mbed import https://developer.mbed.org/users/chalikias/code/frequency_counter/ 

• for a list of supported targets

mbed compile -S

• Finnaly

mbed compile -m LPC1768 -t GCC_ARM