1#!/usr/bin/env python
2#-------------------------------------------------------------------------------
3# qwiic_buzzer_ex7_buzz_melody.py
4#
5# This example shows how to buzz a melody on the Qwiic Buzzer
6#-------------------------------------------------------------------------------
7# Written by SparkFun Electronics, January 2024
8#
9# This python library supports the SparkFun Electroncis Qwiic ecosystem
10#
11# More information on Qwiic is at https://www.sparkfun.com/qwiic
12#
13# Do you like this library? Help support SparkFun. Buy a board!
14#
15# https://www.sparkfun.com/products/24474
16#
17#===============================================================================
18# Copyright (c) 2023 SparkFun Electronics
19#
20# Permission is hereby granted, free of charge, to any person obtaining a copy
21# of this software and associated documentation files (the "Software"), to deal
22# in the Software without restriction, including without limitation the rights
23# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
24# copies of the Software, and to permit persons to whom the Software is
25# furnished to do so, subject to the following conditions:
26#
27# The above copyright notice and this permission notice shall be included in all
28# copies or substantial portions of the Software.
29#
30# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
31# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
32# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
33# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
34# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
35# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
36# SOFTWARE.
37#===============================================================================
38
39import qwiic_buzzer
40import sys
41import time
42
43def runExample():
44 print("\nQwiic Buzzer Example 7 - Buzz Melody\n")
45
46 # Create instance of device
47 my_buzzer = qwiic_buzzer.QwiicBuzzer()
48
49 # Initialize the device
50 if my_buzzer.begin() == False:
51 print("The device isn't connected to the system. Please check your connection", \
52 file=sys.stderr)
53 return
54
55 print("\nQwiic Buzzer ready!")
56
57 # notes in the melody
58 melody = [
59 my_buzzer.NOTE_C4,
60 my_buzzer.NOTE_G3,
61 my_buzzer.NOTE_G3,
62 my_buzzer.NOTE_A3,
63 my_buzzer.NOTE_G3,
64 my_buzzer.NOTE_REST,
65 my_buzzer.NOTE_B3,
66 my_buzzer.NOTE_C4
67 ]
68
69 # note durations: 4 = quarter note, 8 = eighth note, etc.:
70 noteDurations = [4, 8, 8, 4, 4, 4, 4, 4]
71
72 # iterate over the notes of the melody:
73 for thisNote in range(8):
74 # to calculate the note duration, take one second divided by the note type.
75 #e.g. quarter note = 1000 / 4, eighth note = 1000/8, etc.
76 noteDuration = round(1000 / noteDurations[thisNote])
77 my_buzzer.configure(melody[thisNote], noteDuration, my_buzzer.VOLUME_MAX)
78 my_buzzer.on()
79
80 # to distinguish the notes, set a minimum time between them.
81 # the note's duration + 30% seems to work well:
82 pauseBetweenNotes = noteDuration * 1.30
83 time.sleep(pauseBetweenNotes * 0.001)
84
85if __name__ == '__main__':
86 try:
87 runExample()
88 except (KeyboardInterrupt, SystemExit) as exErr:
89 print("\nEnding Example")
90 sys.exit(0)