help in a sound sensor it's an emergency

A

ahmed-max

New Member

• Feb 14, 2009

• #61

no the shematic of the printed one

 

blueroomelectronics

Well-Known Member

• Feb 14, 2009

• #62

You can print it.

 

A

ahmed-max

New Member

• Feb 17, 2009

• #63

can i use the mic of my old micro casque on this circuit?

 

A

ahmed-max

New Member

• Feb 17, 2009

• #64

because i think it's not powerful enought to detect the voice

 

duffy

Well-Known Member

• Feb 17, 2009

• #65

Is it an electret mic? Does it look like this?
**broken link removed**

**broken link removed**

Pin 2 should be the ground, pin 1 connects to the resistor. Don't hook it up backwards. That circuit is inside the mic, and they are usually very sensitive.

 

Last edited: Feb 17, 2009

A

ahmed-max

New Member

• Feb 17, 2009

• #66

ok thx so it works