User manual

Ausgabe 19.05.2017 Copyright by Joy-IT 29
5.9 Project 9: Passive buzzer
With the Mega2560, many interacve projects are possib-
le.
The previous projects mainly dealt with LEDs but an oen
used project is the acousc-opc display.
Therefore, a passive buzzer is used which is, unlike the
acve buzzer, not able to acvate itself.
The acvaon occurs over a pulse frequency.
Dierent frequencs result in dierent sounds.
You can use this to play the melody of a song.
Hardware Amount
Mega2560 board 1
USB cable 1
Passive buzzer 1
Breadboard 1
Breadboard cable 2