Firstly, don’t try to discharge a large capacitor by shorting it directly, as that can damage the capacitor and possibly hurt you. The safe way is t...

To identify the neutral wire safely, start by disconnecting the mains power at the main breaker—this is absolutely essential for your safety. Next, ...

@ankunegi Thank you for such a detailed explanation. Is there any downside to using millis()? I mean, why should I even use delay() then, when millis(...