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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.
@JumJum
Just installed new version 1v47 and it works.
There is still one question, A1 is not serial port as far as I understand.
It works, but why/how ?
Are there any other pins which can be used for more functions than documented in the reference ?