• On the VL board you're communicating via Serial1 on pins A9/A10 to get a Serial console. Is it possible that when you call Serial1.setup(9600,{rx:B7,tx:B6}); you're just moving the serial port to another place, which means you no longer get a response?

    What if you type setInterval("LED.toggle",500) beforehand - so an LED will flash on and off. Does it keep flashing after you issue the command?

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Avatar for Gordon @Gordon started