https://www.youtube.com/c/longtechnical 

Hi guy today we make 10 Band LED Spectrum Analyzer 20HZ - 20KHZ SCHEMATIC,PCB,CODE. Please check on description, My comment on Youtube and do step by step you will get good 10 Band LED Spectrum Analyzer 20HZ - 20KHZ SCHEMATIC,PCB,CODE I try to make the PCB by Sprintlayout and order PCB online on https://jlcpcb.com/. After that the circuit work great and i share it for you. i hope you can do it at home

This PCB i make from Sprintlayout software. You can download it in description. It include PCB layout,schematic and Gerber file. Or you can dowload below.

https://drive.google.com/file/d/1Lnxgj2V6Rn3NEZdMKQd6oBL2gYkmY00A/view

I make the gerber file by Sprintlay software and upload them to https://jlcpcb.com/ for order PCB online. Only 2$ /10pcs for 2 layer PCB and Big Discount on First order Shippinghttps://jlcpcb.com/ Upload your gerber files and fill in Shipping Adress then click PAY. After 2 day. I received the PCB 10PCS it look great and beauty.

 Look at Some Picture About My Project