Hello :) I have one Nano v3, i've uploaded the logic analyzer schetch then i have connected:
- The GND of the nano to the GND of one I/O board.
- Pin 8 to pin 12 of the nano to a 1k R then to the pin i want to analyze.
If i turn on the I/O board the PWR led on the Nano turn on... But the USB is unplugged and there is only the GND connected, there is nothing on the vIN and +5v Why the PWR led turn on ?