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The DIY 20 LED LM358 Sound Level Indicator Equalizer Kit comes with all necessary components to build a real-time sound level display, featuring an on-board microphone and 20 LEDs to visualize audio levels.
The Arduino UNO REV 3 with ATMega328P-AU microcontroller is a reliable, easy-to-use platform for building electronics projects, prototyping systems, and learning about microcontroller programming. With its large I/O pin array, robust memory, and extensive compatibility, it’s perfect for a wide range of applications in the maker and educational community.
The 8X8 MAX7219 LED Dot Matrix Module allows for easy display of custom graphics and animations with microcontrollers like Arduino. Paired with the XL4015 5A Step-Down Converter, which adjusts input voltages from 4V to 38V down to 1.25V to 36V, this combo is perfect for DIY projects and interactive displays.
CD4082 SOP Dual 4-Input AND Gate 
CD4022 SOP 4-Bit Binary Up/Down Counter 
