rosbot/melody.py at master · markusk/rosbot · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
#!/usr/bin/python
# coding=utf-8

import pigpio
import time

BUZZER = 13

pi = pigpio.pi()  # connecting to pigpio daemon
print("Connecting to Raspi...")
if not pi.connected:
    exit()

pi.set_mode(BUZZER, pigpio.OUTPUT)

def buzz(noteFreq, duration):
    halveWaveTime = 1 / (noteFreq * 2)
    waves = int(duration * noteFreq)
    for i in range(waves):
        pi.write(BUZZER, 1)
        time.sleep(halveWaveTime)
        pi.write(BUZZER, 0)
        time.sleep(halveWaveTime)

def play():
    t = 0
    dur = 0.09
    # the notes have these frequencies: https://pages.mtu.edu/~suits/notefreqs.html
    # Bruder Jakob
    # notes=[262,294,330,262,262,294,330,262,330,349,392,330,349,392,392,440,392,349,330,262,392,440,392,349,330,262,262,196,262,262,196,262]
    # duration=[0.5,0.5,0.5,0.5,0.5,0.5,0.5,0.5,0.5,0.5,1,0.5,0.5,1,0.25,0.25,0.25,0.25,0.5,0.5,0.25,0.25,0.25,0.25,0.5,0.5,0.5,0.5,1,0.5,0.5,1]
    notes = [392, 392, 392, 1, 294, 392, 523, 1, 262]
    duration = [dur, dur, dur, 0.3, dur, dur, dur, 0.5, dur]
    for n in notes:
        buzz(n, duration[t])
        # pause between each note
        time.sleep(duration[t] * 0.4)
        t += 1

play()

pi.stop()  # close connection