SCHEMATIC DIAGRAM
HARDWARE CONNECTION
LESSON 3
CREATE MELODY WITH PIEZO BUZZER
LESSON 3
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INTRODUCTION
Piezo buzzer can produce dierent notes by controlling the voltage frequency. Maker
UNO has a built-in piezo buzzer on digital pin 8.
RX 0
TX 1
2
~3
4
~5
~6
A5
A4
A3
A2
A1
A0
7
8
~9
~10
~11
12
13
5V VIN3V3
MAKER UNO
GND
