"How to Make a Universal Reprogrammable Timer Controller using Arduino Nano: 3 Modes!" ||Wokwi

[@arama8196]

hi sir. how can i add a buzzer when led is off?

[@technicalshubham789]

You can use Transistor for this purpose. Or you can also use SPDT Relay

[@MartinSteyn-tw5cw]

Thank you for sharing you are Assume

[@tyronenewman455]

"PromoSM" 🙌