• BTW, if I try this:

    Espruino.Core.Serial.write('ffff\x03echo(0);\nconsole.log("<<"+"<<<"+JSON.stringify('+expressionToExecute+')+">>>"+">>");\n');
    

    I get:

    Uncaught ReferenceError: "ffffecho" is not defined
     at line 1 col 1
    ffffecho(0);
    

    Someone processed \x03 without clearing leading characters ffff.

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