Have you got the up to date firmware on your Pico? And which bit of that tutorial doesn't work properly?
Getting the CPU activity from your PC/Mac is probably the hardest part since it's being done with command-line tools... What's your operating system? It might be the commands need to be slightly different
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.
Have you got the up to date firmware on your Pico? And which bit of that tutorial doesn't work properly?
Getting the CPU activity from your PC/Mac is probably the hardest part since it's being done with command-line tools... What's your operating system? It might be the commands need to be slightly different