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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.
@bigplik
now it was connected into WebIDE but got info that WebIDE can't find a stm32 bootloader, but pico is in bootloader mode, it is pulsing LED's,
after while It was possible to flash the firmware, pico can connect into WebIDE but I can't write anything in console, I have also Esprino board (green one) and it is working in all of that terminals,
dont' know what was wrong, but after plenty of times and few flash firmware operations It came back to live ;)