Create an Arduino sketch for an Uno R3 that scans uno registers and pin register status as serial monitor 115200
- Digital pins D0–D13: Prints HIGH/LOW states.
- Analog pins A0–A5: Prints analog readings (0–1023).
- AVR PORT/DDR/PIN registers: Shows raw hex values for all 3 ports.
- Serial output at 115200 baud: Fast, easy to monitor.
- Updates every 2 seconds in loop().