Please Help! New to electronics!

Discussion in 'The Projects Forum' started by xcrnr, Apr 15, 2014.

  1. xcrnr

    Thread Starter New Member

    Apr 15, 2014
    7
    0
    I am new to electronics and i am trying to make a TDA 2882m amp circuit to boost the sound of my speaker.

    I want it to be able to plug the headphone jack into the music source then it will play loud out the speaker

    For example [​IMG]
    THis makes the LEDs flash to the beat i think
    and i want to combine it with a circuit like this
    [​IMG]
    I Pretty much want this
    http://i0.wp.com/make-images.s3.amazonaws.com/QRq3eSi1inO3FRqJ.jpg?resize=620,465

    But im stuck on how to make the amp part....Thats what i need help with
    But i want it to plug into the music source

    like i said, im new so any simplifying would be great.
     
    Last edited: Apr 15, 2014
  2. xcrnr

    Thread Starter New Member

    Apr 15, 2014
    7
    0
    This is what i want, but how do i make the amp part? thats what im stuck on

    Thank you
     
  3. shteii01

    AAC Fanatic!

    Feb 19, 2010
    3,394
    497
    Step 1.
    Draw a block diagram showing what is connected to which and in what order.
     
  4. Bernard

    AAC Fanatic!

    Aug 7, 2008
    4,173
    397
    In the Find box, put in Bill's Index, down to LED's, 555's, ...., Ch 12, Fig 12.4 for single " color organ".
     
  5. xcrnr

    Thread Starter New Member

    Apr 15, 2014
    7
    0
    Thank you this is what i want, but its a little complicated...is there any simple one with just one color led? Any simple led reacting speaker and amp circuit is what im looking for, ive spent hours searching for one
     
  6. #12

    Expert

    Nov 30, 2010
    16,320
    6,818
    Start with the datasheet for the chip and use their examples.
     
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  7. Dodgydave

    Distinguished Member

    Jun 22, 2012
    4,998
    745
    Connect the Leds as per drawing, you may need an optional resistor in series for the base feed.

    Leds may need series resistors, and connected in Parallel not series like you have.
     
    Last edited: Apr 16, 2014
  8. ErnieHorning

    Member

    Apr 17, 2014
    67
    17
    Before you do anything, you really should be starting with what LED’s you’re intending to use. Putting a high current into an LED that isn’t designed for it will turn it into a high velocity projectile.
     
  9. xcrnr

    Thread Starter New Member

    Apr 15, 2014
    7
    0

    But now im really confused....why is there one wire for the audio input?
     
  10. burger2227

    Member

    Feb 3, 2014
    190
    24
    This is help to a newbie?

    1) what findbox

    2) Where is find box?

    3) Why answer?
     
  11. tracecom

    AAC Fanatic!

    Apr 16, 2010
    3,869
    1,393
    The find box is at the top right of this page. It is used to search within this forum. The suggestion from Bernard (one of the most willing helpers here) is to look at Bill Marsden's (AAC's resident expert on 555s) blog on the subject.

    How did your post help?
     
  12. burger2227

    Member

    Feb 3, 2014
    190
    24
    I post the link!
     
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