millis arduino

Writing blocking code is one of the most common mistakes people make when programming Arduino. This type of code stops the microcontroller from doing anything else while it waits. This usually happens when you use delay() or loops that run …

As Arduino projects grow beyond simple sketches, code based on delay() statements and deeply nested if conditions quickly becomes hard to read, hard to debug, and unreliable. This is where state machines become essential. A state machine is a programming …