Simple Robot Sound Sensor

This simple sound sensor uses one LM741. The circuit amplifies input signals from the microphone and triggers a transistor which lights a LED. The output from the transistor can be used to connect an output signal wire to either a Basic Atom or Basic Stamp MCU to trigger program events. All parts are available at Radioshack.

Category:

Howto & Style

Tags:

• simple
• robot
• sound
• sensor

[StayWiithMe]

Hi.. nice work

i have a question.. can i connect a microphone to microcontroller without signal amplification?

[Botwire]

@StayWiithMe No, you need to amplify the signal to be able to do anything with it. The mic element by itself is a component kind of like a variable capacitor. You need to have a simple circuit to amplify the signal so that you can do different things with it. There are simpler circuits out there but my circuit works well for my needs.

[VicToRMrOwKa]

Could you please send me a DETAILED shamatic that would be greatly appreciated lol

[Botwire]

@VicToRMrOwKa Got an email address??



[InfinityDose]

Hi, is there a better quality image of the circuit? The one at the end of the video is a little blurry... Cool setup though

[Botwire]

@InfinityDose Got an email address?

[tatatata38]

cool!

[lupdan777]

could you send a me schematic, please?this is my e-mail adress:kool_dude957@yahoo.com

[mlmogollon]

hey! can you please send me the circuit? thankss

[VicToRMrOwKa]

@VicToRMrOwKa na don't need it any more lol

[Dnava7811]

hey could you send me the shamatic please