This is a simple and very useful article on building a circuit that produces “ding dong” sound using 555 timer. We observe different types of door bells in different houses. They produce different ...

Internally, Honda calls it the mnemonic. Legally, it has no trademarked name. It's supposed to sound like someone saying "Honda." But if you have thought about it at all, you probably only think of it ...

This simple and cost-effective ding dong electronic doorbell circuit is based on IC 8021-2. The IC has an in-built circuitry to produce ding dong sound each time its pin 3 is pulled low. The sound is ...