Tiny sound device

[Mark]

I am designing a fairly small (25 x 25 x 25 mm) robot, and I want to
have some sound output. A simple click or buzz or beep will do quite nicely.
The smallest device I've been able to find is a cell phone speaker that's
8x8x4 mm in size. Anyone know of something smaller that's actually
available? Thanks!

Mark

 

[eliteprayer]

On Nov 27, 9:27 am, "Mark" <M...@nospam.com> wrote:

    I am designing a fairly small (25 x 25 x 25 mm) robot, and I want to
have some sound output. A simple click or buzz or beep will do quite nicely.
The smallest device I've been able to find is a cell phone speaker that's
8x8x4 mm in size. Anyone know of something smaller that's actually
available? Thanks!

Mark

I think cellphone speaker can fit very well in you robot. You can make
small power amplifier and place 4-5 pieces speakers surrounding your
robot. The simplest is just put a loud beeper, very loud indeed.

 

[GregS]

In article <21d0925e-e5c7-4993-9f94-048f80317e2c@w39g2000prb.googlegroups.com>, eliteprayer <lyy1992@gmail.com> wrote:

On Nov 27, 9:27=A0am, "Mark" <M...@nospam.com> wrote:
=A0 =A0 I am designing a fairly small (25 x 25 x 25 mm) robot, and I want=
to
have some sound output. A simple click or buzz or beep will do quite nice=
ly.
The smallest device I've been able to find is a cell phone speaker that's
8x8x4 mm in size. Anyone know of something smaller that's actually
available? Thanks!

Mark

I think cellphone speaker can fit very well in you robot. You can make
small power amplifier and place 4-5 pieces speakers surrounding your
robot. The simplest is just put a loud beeper, very loud indeed.

You can take a piece of bimorph piezo material and make it 1 X 1x .001 mm if you want.
It would need driven by a signal, and the smaller it is the less LF energy
its going to have.


greg