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.
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
8to5in line 37.
tone(5, melody[thisNote], noteDuration);
- Change
8to5in line 44.
noTone(5);
Execution Results
The melody sounds only once from the speakers.
Last modified 15.03.2021