hello,
have you noticed this:
If I connect the USB port of the arduino and I do not turn on the 12V power supply, the internal 12v-->5v? voltage regulator switches the 5v to the 12v input. He¡¯s actually walking backwards.
it¡¯s probably related to the design of the regulator,?
Amazing though
Made the test.
cdt
cdt
Gerard