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Make sure to connect positive pin(+) of buzzer to Arduino digital pin 7 and negative pin(-) to Arduino GND. In same cases, you may want to connect 100ohm series resistor between buzzer positive(+) pin ...

so tinkercad has circuit designand arduno now, a real arduino is $20, IDE is free, fritzing is free and does all the exact same layout stuff locally, you save your files and keep them forever.

Above code is given in pitches.h header file in this zip file, you just need to download and include this file in our Arduino code as given at the end this tutorial or use the code given in the zip ...