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Help in bulding a music visualizer/analyzer/equalizer Answered

Hello guys,
I want to do this project so badly but I just can't understand his wiring's and how did he made it to work. I know its based on a previous work but I can't understand how we adapted to normal leds.
Can PLEASEEE somebody help me? I want to try this so much :(
Thank you guys!
Best,
Filipe from Portugal

Original work: https://www.instructables.com/id/Music-Visualiser-Table/

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mpilchfamily
mpilchfamily

5 years ago

I take it you've already looked at the visualizer project on the Adafruit site correct?

Now you need to understand what an LED matrix is. Look up Schematics for LED Matrix. Then you'll see how the LEDs are wired together in rows and columns. Plenty of project here on making an LED matrix.

http://www.futurlec.com/Pictures/LEDM88G_Circuit.g...

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Filipe Fonseca
Filipe Fonseca

Answer 5 years ago

Hello!

Thanks for your reply.

I've seen the adafruit project. My problem is understanding the leds configuration ans schematics. I'm having trouble understanding yours also :(

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mpilchfamily
mpilchfamily

Answer 5 years ago

Then you need to learns some basic electronics. You lay out the LEDs in a grid. As you can see in the schematics one led of the LED is wired to all the rest in it's row. Then other is wired to all the rest in it's column. As long as you keep all the Anodes going one way and all the Cathodes going the other your fine. When one row and one column are allowed to connect to power and ground the LED at that intersection is the one that lights up. This is how those ready made matrix are set up.

Learn how to read a schematic. Learn what side of the LED symbol is anode and cathode. Search the site for other LED matrix projects. Eventually with the combined information you'll understand it.