Audio VU meter 16 LED - 4 program PIC microcontroller + Electret Microphone.

This VU meter indicates the audio signal level.
PIC Microcontroller - PIC16F684.
Input signal - Electret Microphone (included).
Gain control - Trimmer.
16 Red LED's - diffused, 5mm, 1560mCd, 60*.
4 programs:
Program 1 - from right to left.
Program 2 - from left to right.
Program 3 - from the end to the middle.
Program 4 - from the middle to the end.
Button - choice program.
Power supply - DC 8 to 14V.
Memory - remember last selected program.

Category:

Science & Technology

Tags:

• Audio
• VU
• meter
• 16
• LED
• program
• PIC
• microcontroller
• Electret
• Microphone.

[Loos4ever]

can you did an video how do you do this, and where you buy all these things?

[0lMelhor]

Whats the schematic you used to recieve a variable voltage from microphone

[MrKingKANEkong]

I got this in my ps3

[THEtechknight]

its not logarithmic i noticed.

[jams1590]

i want the song name please...

[MainPorsche]

Каде бих могъл да намеря схемата на този кит ?

[MainPorsche]

Can I ask for the schematics ?

[mdfreitas8]

Is the sampling done just by the PIC or there is another AD chip you're using? Which is the sample rate? What kind of circuit is being used for preparing the signal before the AD convertion?

[C33Fernandez]

Hi, nice vid. I wanted to ask if there were newbie friendly diagrams or tutorials for this project.

Or is there a place I can buy a kit that wouldn't be too expensive. I'd appreciate if you could get back to me on these topics - thanks.

[nhekborin]

like it, tutorial please!