Mu is a simple code editor for beginner programmers based on extensive feedback from teachers and learners. Having said that, Mu is for anyone who wants to use a simple "no frills" editor. Most ...

What were you trying to do? To flash Micro:bit with the code in the Mu's window What steps did you take to trigger the issue? Plug in the Micro:bit and select the Micro:bit mode Switch to REPL to ...