I Assembled My Own DIY Calling Bell
Автор: Simplehobbies
Загружено: 2025-07-18
Просмотров: 300
Описание: This is a simple Ding Dong Bell project using a single NE555 timer IC. The NE555 is connected in astable mode to produce sound through a speaker. When the push button is pressed, the circuit generates a changing tone that mimics a ‘ding’ followed by a ‘dong’ sound. This is achieved by gradually shifting the frequency using a capacitor and resistor network. It is a fun and educational project to demonstrate how a timer IC can be used to create sound effects.
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