4 Clap Activated Relay or Switch (220V)

This Clap Activated Relay project is similar to clap activated LED lamp. The only difference is you can power
up a 220V lamp  or any 220V equipment using a relay.

220V clap relay switch schematic

The transformer is 220V to 15V -0V-15V transformer of a minimum of 10VA. You can replace the 1N4001 diodes of any types with similar ratings.The relay  is 12V with 5A output current capacity or higher. You can replace also the transistor of any general purpose type.

Note: This clap activated relay   is connected to main supply (220VAC). Do not try to touch the main supply to avoid electrocution or do not try to construct if you do not have any idea in electronics.

7 Clap Activated LED lamp

This 12v Led lamp is clap activated. You can turn on and off the lamp by simply clapping your hands or dropping a book to ground.

Clap activated LED lamp schematic

First the electret microphone picks up a sound from a clap or any sound that mimics a clap then amplify it  using the first 2N222 transistor .Then the flip-flop circuit composed of two 2N222 transistors (form a mirror circuit)  will on and off the output transistor in every clap. Parts of  this project are not critical, you can replace the transistors any general purpose type. Output LED are either white or blue.