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PROJECT
288

Build a Simple Binary to Decimal Converter Box

By Maker.io Staff

Build a binary-coded-decimal to decimal converter box containing eight switches which allow users to input a number from 0-255 by setting individual bits.

PROJECT
334

Building an Arduino-Based Spectrum Analyzer - The Software

By Maker.io Staff

This last part of the series discusses how the project’s firmware calculates the FFT result from the collected samples and displays it on the LED matrix screens.

PROJECT
162

How to Interface an LED Matrix with the MAX7219

By Maker.io Staff

Create an Arduino-based spectrum analyzer and graphic equalizer to spice up your home sound system using LED matrices and a MAX7219 display controller.