Speaker

Overview

Use the piezoelectric loudspeaker in the SP&PIR Leaf to make the melody sound.

Leaf to use

Use the following leaves.

Type Name Q’ty
AI02 SP&PIR 1
AP01 AVR MCU 1
AV01 CR2032 1
AZ01 USB 1
AZ62 Connector Cover 1
CR2032 coin cell battery 1
M2*15mm screw 2

Assembly

Let’s assemble leaves as shown in the figure below.

assemble1

Source code

Open the Arduino, go to File → Sketch Examples → 02.Digital → toneMelody.

In this sample code, the speaker is supposed to be connected to pin number 8.
But as the loudspeaker is connected to pin 5 in Leafony, you should fix the following part to make it correct.

  • Change the 8 to 5 in line 37.
tone(5, melody[thisNote], noteDuration);
  • Change 8 to 5 in line 44.
noTone(5);

Execution Results

The melody sounds only once from the speakers.


Last modified 09.12.2020