go_away

Author Topic: sound activated switch  (Read 7573 times)

0 Members and 1 Guest are viewing this topic.

Offline ert481Topic starter

  • Jr. Member
  • **
  • Posts: 32
  • Helpful? 0
  • yo young?
sound activated switch
« on: June 16, 2009, 09:35:20 AM »
I need a very simple yet sensitive sound activated switch. either a schematic or link. i searched google and couldn't find a simple one.

thanks
young people can build robots to!!!

Offline Trumpkin

  • Supreme Robot
  • *****
  • Posts: 1,177
  • Helpful? 5
Re: sound activated switch
« Reply #1 on: June 16, 2009, 09:40:52 AM »
I did a quick google search and found this http://electroschematics.com/704/sound-activated-switch/
Robots are awesome!

Offline GearMotion

  • Supreme Robot
  • *****
  • Posts: 489
  • Helpful? 24
  • Two decades+ of Embedded Design
Re: sound activated switch
« Reply #2 on: June 16, 2009, 10:58:58 AM »
I need a very simple yet sensitive sound activated switch. either a schematic or link. i searched google and couldn't find a simple one.

"Hoooooonnnneeeeyyyyyy! Turn the light on."

That has always been my simple sound activated switch.


 :P

Are you looking for any sound, or a specific tone?

Offline ert481Topic starter

  • Jr. Member
  • **
  • Posts: 32
  • Helpful? 0
  • yo young?
Re: sound activated switch
« Reply #3 on: June 16, 2009, 01:46:32 PM »
i need one for any sound...i dont know how you found that schematic but that should work unless theres any simpler.
young people can build robots to!!!

Offline ert481Topic starter

  • Jr. Member
  • **
  • Posts: 32
  • Helpful? 0
  • yo young?
Re: sound activated switch
« Reply #4 on: June 16, 2009, 02:19:52 PM »
i also need a 2 second delay switch to shut something off.
thanks
young people can build robots to!!!

Offline SmAsH

  • Supreme Robot
  • *****
  • Posts: 3,959
  • Helpful? 75
  • SoR's Locale Electronics Nut.
Re: sound activated switch
« Reply #5 on: June 16, 2009, 02:54:51 PM »
use a microcontroller. all of this can be done using one. read up a bit.
as for the switch you could use a microphone with a set threshold in the code.
ie. when the sound gets to a certain level it does something.
Howdy

Offline ert481Topic starter

  • Jr. Member
  • **
  • Posts: 32
  • Helpful? 0
  • yo young?
Re: sound activated switch
« Reply #6 on: June 16, 2009, 03:42:09 PM »
i dont wont to program anything....this is kinda a security system an i just want something basic.
young people can build robots to!!!

Offline SmAsH

  • Supreme Robot
  • *****
  • Posts: 3,959
  • Helpful? 75
  • SoR's Locale Electronics Nut.
Re: sound activated switch
« Reply #7 on: June 16, 2009, 04:05:07 PM »
then my friend, it will be a task... how does a tin can rigged up to a trip wire sound?
security systems ARE complicated if you want them to work well.
without a microcontroller it will be hard to do.
what do you want it to do when it "hears" something?
Howdy

Offline ert481Topic starter

  • Jr. Member
  • **
  • Posts: 32
  • Helpful? 0
  • yo young?
Re: sound activated switch
« Reply #8 on: June 16, 2009, 04:46:58 PM »
no this is not going to be anything advanced. i just want a sound activated switch hooked up to an alarm so it turns on then build a 10 second delay before it shuts off. Or i was going to have it hooked up to my shadow activated alarm so i can go over to it and clap and have it turn off the circuit.
young people can build robots to!!!

Offline Soeren

  • Supreme Robot
  • *****
  • Posts: 4,672
  • Helpful? 227
  • Mind Reading: 0.0
Re: sound activated switch
« Reply #9 on: June 17, 2009, 07:00:29 PM »
Hi,


You can build a delay very simple with a 555, with half a 4093, or with a couple of transistors + glue.
To go with the first two, they could be trig'd from either an electret microphone capsule and a transistor, or with a piezo disc if you only want it to trigger by loud sounds like clapping your hands (or by tapping near the disc ).

What output do you need when triggered, before that and after the timed part??, something like  this: __|¨¨¨|__  ?
What supply voltage?
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline ert481Topic starter

  • Jr. Member
  • **
  • Posts: 32
  • Helpful? 0
  • yo young?
Re: sound activated switch
« Reply #10 on: June 17, 2009, 08:40:41 PM »
im going to be sending five volts thrue it.
young people can build robots to!!!

Offline swagatam

  • Beginner
  • *
  • Posts: 2
  • Helpful? 0
Re: sound activated switch
« Reply #11 on: April 07, 2010, 06:20:48 AM »
I need a very simple yet sensitive sound activated switch. either a schematic or link. i searched google and couldn't find a simple one.

thanks

Learn how to build a simple sound activated alarm: http://www.brighthub.com/engineering/electrical/articles/68202.aspx ;D

Offline Soeren

  • Supreme Robot
  • *****
  • Posts: 4,672
  • Helpful? 227
  • Mind Reading: 0.0
Re: sound activated switch
« Reply #12 on: April 07, 2010, 09:13:34 AM »
10 months too late and it's even a very bad circuit with the base of T1 unprotected  ::)
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline swagatam

  • Beginner
  • *
  • Posts: 2
  • Helpful? 0
Re: sound activated switch
« Reply #13 on: April 11, 2010, 10:23:30 PM »
Is this site a legit one?
 :ohttp://www.infotechse.com/affiliate/idevaffiliate.php?id=881

 


Get Your Ad Here