 |
| Clap activated LED lamp schematic |
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.
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.
Labels:
clap switch,
LED CIRCUITS
Subscribe to:
Post Comments (Atom)
the 10uF on mic input is 100pF or 10nF
ReplyDeleteyou can use 100pF or even 10uF capacitor. The idea is increasing the value of capacitor makes the clap circuit sensitive even low frequencies. But if you are planning the the circuit will trigger only with claps, you can use capacitor with lower values.
ReplyDeletehow much it cost ....
ReplyDeletewill this work i am going to do this ..
ReplyDeletewhat about the diodes?
ReplyDeletei faced a problem when switching 0ff, switching on is working perfectly.... some times it works both on and off.... can you please help me.... thanks.... By the way thanks for posting these circuits.....thanks again....
ReplyDeletewhat is 300
ReplyDelete