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Download Buzzer / Application / LibreConnect / Source

Play music / Build an alarm using a buzzer.

• Applications
• Commands
• Build buzzer
• 3D Printing

Applications

Midi Keyboard

• Plug your MIDI keyboard.
• Go to http://madnerd.org/interface/midi

Midi Software

You can compose music that will be played by the buzzer.

LoopMidi

We are going to use loopMidi to generate virtual midi port on Windows.

• Download : loopMidi
• Click on + to create a virtual midi port

LMMS

Examples are available in lmms/

• Download LMMS : https://lmms.io/download/#windows
• On TripleOscillator put the volume to 0
• Click on the gear next to TripleOscillator
• Click on Midi and choose your virtual midi port (Loopmidi by default) ##

Commands

• /info --------> Display name:port
• X -------> Where X is the frequency in hz
• OFF -------> Stop sound

Build buzzer

Components

• Arduino nano CH340G: 2€
• 10 Buzzer : 1.80€ (1 Buzzer:0.18€)
• Resistor pack 400pcs (3€) (1 resistor: 0.0071€)
• 5 pcs stripboard (1.18€) (1 stripboard : 0.24€ )
• Total : 7.98€ (2.43€)

Wiring

Don't forget to isolate the circuit from the arduino

Buzzer only

• Pin 9 : RESISTOR (100Ω) --- Buzzer +
• Pin 10 : Buzzer -

Buzzer/Led

You can add a led (before the resistor)

• Pin 9 : RESISTOR (100Ω) --- Led + / Buzzer +
• Pin 10 : Led - / Buzzer -

3D Printing

This model is a all purpose case for arduino nano projects
Models by Olivier Sarrailh : https://github.com/madnerdorg/buzzer/tree/master/3D

This models can be a little too small to fit the circuit

Licences

Buzzer.ino

• Author: Rémi Sarrailh (madnerd.org)
• Licence: MIT

ToneAC

• Author: Tim Eckel
• Licence : GNU GPL v3
• Link: https://bitbucket.org/teckel12/arduino-toneac/wiki/Home
• Donate : PayPal