Make Your Own LED Sign VU Meter
Intro: Make Your Own LED Sign VU Meter
In this project I will show you how to create a custom LED sign that reacts to the loudness of your music, just like a VU meter does. Let's get started!
STEP 1: Watch the Video!
The video gives you all information you need to build this project. But in the next steps you can find a parts list, schematic and reference pictures for your convenience.
STEP 2: Order the Components!
Here is a list of all the parts you will need to recreate the project (affiliate links).
Aliexpress:
1x Stripboard: https://s.click.aliexpress.com/e/_dY2kgvt
100x 5mm Green LED: https://s.click.aliexpress.com/e/_dV63r7D
1x Perfboard with copper dots: https://s.click.aliexpress.com/e/_dXx2Zv5
1x 3.5mm Audio Jack: https://s.click.aliexpress.com/e/_d6P8Gwx
1x DC Jack: https://s.click.aliexpress.com/e/_d6cVZVl
2x LM324 OpAmp: https://s.click.aliexpress.com/e/_dTfU1ML
1x 47µF Capacitor: https://s.click.aliexpress.com/e/_d7dOwRz
1x 100kΩ Potentiometer: https://s.click.aliexpress.com/e/_dX83GAF
7x IRFD220 N-channel MOSFET: https://s.click.aliexpress.com/e/_d8bd2m3
11x 10kΩ, 1x 47kΩ, 4x 1kΩ, 2x3.3kΩ, 3x 4.7kΩ, 2x 2kΩ, 1x 6.8kΩ, 1x 2.2kΩ, 1x 51kΩ Resistor: https://s.click.aliexpress.com/e/_dTPpXjt
1x 12V 2A Power Supply: https://s.click.aliexpress.com/e/_dYHJ45t
1x: Buck Converter: https://s.click.aliexpress.com/e/_dZOxkKj
Ebay:
1x Stripboard:-
100x 5mm Green LED: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...
1x Perfboard with copper dots: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...
1x 3.5mm Audio Jack: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...
1x DC Jack: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...
2x LM324 OpAmp: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...
1x 47µF Capacitor: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...
1x 100kΩ Potentiometer: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...
7x IRFD220 N-channel MOSFET: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...
11x 10kΩ, 1x 47kΩ, 4x 1kΩ, 2x3.3kΩ, 3x 4.7kΩ, 2x 2kΩ, 1x 6.8kΩ, 1x 2.2kΩ, 1x 51kΩ Resistor: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...
1x 12V 2A Power Supply: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...
1x: Buck Converter: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...
Amazon.de:
1x Stripboard: http://amzn.to/1Ky7A8A
100x 5mm Green LED: http://amzn.to/1SW1GH4
1x Perfboard with copper dots: http://amzn.to/1WhVmwA
1x 3.5mm Audio Jack: http://amzn.to/1WhVr3q
1x DC Jack: http://amzn.to/1NtXgmx
2x LM324 OpAmp: http://amzn.to/1WhVsnX
1x 47µF Capacitor: http://amzn.to/1SW1Q1l
1x 100kΩ Potentiometer: http://amzn.to/1WhVJXY
7x IRFD220 N-channel MOSFET: http://amzn.to/1TwZeDp
11x 10kΩ, 1x 47kΩ, 4x 1kΩ, 2x3.3kΩ, 3x 4.7kΩ, 2x 2kΩ, 1x 6.8kΩ, 1x 2.2kΩ, 1x 51kΩ Resistor: http://amzn.to/1E9uEhN
1x 12V 2A Power Supply: http://amzn.to/1TwZhPB
1x: Buck Converter: http://amzn.to/1TwZi66
STEP 3: Build the LED Sign and the Circuit!
Here you can find the schematic of the circuit and reference pictures. Use those to create your own circuit. The average time to make the LED Sign VU Meter should be around 4 to 5 hours if you do not face any problems.
STEP 4: Success!
You did it! You just created your own LED Sign VU Meter!
Feel free to check out my YouTube channel for more awesome projects:
http://www.youtube.com/user/greatscottlab
You can also follow me on Facebook, Twitter and Google+ for news about upcoming projects and behind the scenes information:
58 Comments
gaurakhj294 2 years ago
chiru53704035 6 years ago
gaurakhj294 2 years ago
Jonnya12 6 years ago
boasdelely 4 years ago
forathul 4 years ago
martin-podhola 5 years ago
Hello Scott, this is great as all of your projects. I am totally beginner in electro (whole life unix programmer:)). I am going to do this for my 2 years old daughter, she loves music, singing (and making lots of noises) so I would like to use a microphone like input, it is possible to do this, please? I think it is but not sure
Bluehusk 5 years ago
Please can i have a clear schematics paper.Its all blur.
SanalA2 6 years ago
vgregorio 6 years ago
Is it possible to replace the IRFD220 MOSFETs with IRF540? Thanks
Isitha ChamikaB 6 years ago
yeah i guess i used IRFZ44N
FilipKral 6 years ago
can somebody help me what does this mean.
Isitha ChamikaB 6 years ago
main power for circuit is 12v
Nikki2698 6 years ago
Jonnya12 6 years ago
wildborego 6 years ago
Did you watch the video?
DaveGregson 6 years ago
Does anyone have the Eagle schematic file that i can have please? The link thats on here doesn't work. Thanks
Aiwin anil john 7 years ago
Nikki2698 6 years ago
AndréV97 6 years ago
this is your best project with the worst explanation. You can barely see the schematics and you go really fast while soldering so no one can actually see what's going on...