Hello World works but this tutorial doesn't strange
http://www.espruino.com/Pico+CPU+Monitor
@user54721 started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Hello World works but this tutorial doesn't strange
http://www.espruino.com/Pico+CPU+Monitor