START A BITCode lab
Write code, run it, and watch it work, also on a simulated Arduino, Raspberry Pi Pico, ESP32 or Micro:bit (MakeCode).
Code
Circuit
Run the sketch: its global variables show here, with their values while they change.
Run it: each pin the program uses gets a row here, HIGH up and LOW down, as a logic analyser shows it.
Run the sketch: how often loop() runs, and how much of the time it waits in delay().
Output
Input