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Delay() halts code execution, reading sensors, I/O pin changes, and serial output. Use these alternatives to allow other code to run in the interim.
Decrease the chance of mold growth and contracting an illness while also increasing the comfort level indoors with this simple Arduino based air quality monitor.
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.
Use an ATMega328 Arduino Uno microcontroller to collect audio samples and detect prominent frequencies.
Create an Arduino-based spectrum analyzer and graphic equalizer to spice up your home sound system using LED matrices and a MAX7219 display controller.
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