If you're developing a wrist watch, a small light-following robot, or a portable weather station with Arduino, one of the best boards you can use is the Nano, and for good reason. It's pretty compact, ...

A built-in user LED is also available on Pin 13. Figure 4 shows the full pinout of the Arduino Nano RP2040 Connect board, which is also available with header pins pre-installed. Pin layout is ...