Why doesn't this work on a Nano?
When I check pin 7 (D4?), it's near Zero volts.
After sketch upload or reset, and with no setup, loop statements or functions that change the state of pin-7, the pin sits at 0 volts.
If I add an external 15k resistor to pin7 tied to 5V, pin-7 IS nearly 5V.
Is this Nano dead ??