Pygame playing sounds without input...

[Shaurya]

Hello!
I am working on a python script that involves Pygame and I am stumbling upon something... This is the code----

Code: Select all

import time
import os
import rpi.GPIO as GPIO
GPIO.setmode(GPIO.BOARD)
GPIO.setup(29,GPIO.IN)
GPIO.setup(31,GPIO.IN)
GPIO.setup(32,GPIO.IN)
GPIO.setup(33,GPIO.IN)
GPIO.setup(35,GPIO.IN)
GPIO.setup(36,GPIO.IN)
GPIO.setup(37,GPIO.IN)
GPIO.setup(38,GPIO.IN)

import pygame
pygame.mixer.init(44100,-16,8,2048)

Drum1 = ('/home/pi/Drum1.wav')
Drum2 = ('/home/pi/Drum2.wav')
Drum3 = ('/home/pi/DrumSp.wav')
BassDrum = ('/home/pi/BassDrum.wav')
Cym1 = ('/home/pi/Cymbal1.wav')
Cym2 = ('/home/pi/Cymbal2.wav')
Cym3 = ('/home/pi/Cymbal3.wav')
Cym4 = ('/home/pi/Cymbal4.wav')

ch1 = pygame.mixer.Channel(0)
ch2 = pygame.mixer.Channel(1)
ch3 = pygame.mixer.Channel(2)
ch4 = pygame.mixer.Channel(3)
ch5 = pygame.mixer.Channel(4)
ch6 = pygame.mixer.Channel(5)
ch7 = pygame.mixer.Channel(6)
ch8 = pygame.mixer.Channel(7)

try:
    while True:
        while True:
            if GPIO.input(29) ==1:
        ch1.play(pygame.mixer.Sound(Drum1))
                time.sleep(0.02)
                break
            if GPIO.input(31) ==1:
        ch2.play(pygame.mixer.Sound(Drum2))
                time.sleep(0.02)
                break
            if GPIO.input(32) ==1:
        ch3.play(pygame.mixer.Sound(Drum3))
                time.sleep(0.02)
                break
            if GPIO.input(33) ==1:
          ch4.play(pygame.mixer.Sound(Cym1))
                time.sleep(0.02)
                break
            if GPIO.input(35) ==1:
          ch5.play(pygame.mixer.Sound(Cym2))
                time.sleep(0.02)
                break
            if GPIO.input(36) ==1:
          ch6.play(pygame.mixer.Sound(Cym3))
                time.sleep(0.02)
                break
            if GPIO.input(37) ==1:
          ch7.play(pygame.mixer.Sound(Cym4))
                time.sleep(0.02)
                break
            if GPIO.input(38) ==1: ch8.play(pygame.mixer.Sound(BassDrum))
                time.sleep(0.02)
                break

finally:
    GPIO.cleanup()

When I run the script, I do not get ANY errors, but pygame starts playing many sounds at once, without me even giving the input to the GPIOs using the buttons.
If anyone of you people can direct me on this topic, it would really be appreciated...
Thank you!

Edit: This has been solved...
I forgot to connect the Ground to the GPIO Pins.

[gordon77]

Try using pull up / down eg..

GPIO.setup(29,GPIO.IN, pull_up_down=GPIO.PUD_DOWN)

[Burngate]

(from someone who may not know what he's talking about)
A snipet of your code:

Code: Select all

 ... 
try:
    while True:
        while True:
            if GPIO.input(29) ==1:
        ch1.play(pygame.mixer.Sound(Drum1))
                time.sleep(0.02)
                break
            if GPIO.input(31) ==1:
 ...

The indentation is important in Python, and the "ch1.play line" is indented less than the "if" statement, so is going to happen whether-or-no

[gordon77]

Burngate is correct, l just put it down as some formatting error on here as the indentation is all over the place and you said you had no errors...

Try..

Code: Select all

  try:
    while True:
        while True:
            if GPIO.input(29) ==1:
                ch1.play(pygame.mixer.Sound(Drum1))
                time.sleep(0.02)
                break
            if GPIO.input(31) ==1:
                ch2.play(pygame.mixer.Sound(Drum2))
                time.sleep(0.02) 
                
                

etc...

[gordon77]

I am not sure how your script didn't show any errors..

Try this...

Code: Select all

import time
import os
import RPi.GPIO as GPIO
GPIO.setmode(GPIO.BOARD)
GPIO.setup(29,GPIO.IN)
GPIO.setup(31,GPIO.IN)
GPIO.setup(32,GPIO.IN)
GPIO.setup(33,GPIO.IN)
GPIO.setup(35,GPIO.IN)
GPIO.setup(36,GPIO.IN)
GPIO.setup(37,GPIO.IN)
GPIO.setup(38,GPIO.IN)

import pygame
pygame.mixer.init(44100,-16,8,2048)

Drum1 = ('/home/pi/Drum1.wav')
Drum2 = ('/home/pi/Drum2.wav')
Drum3 = ('/home/pi/DrumSp.wav')
BassDrum = ('/home/pi/BassDrum.wav')
Cym1 = ('/home/pi/Cymbal1.wav')
Cym2 = ('/home/pi/Cymbal2.wav')
Cym3 = ('/home/pi/Cymbal3.wav')
Cym4 = ('/home/pi/Cymbal4.wav')

ch1 = pygame.mixer.Channel(0)
ch2 = pygame.mixer.Channel(1)
ch3 = pygame.mixer.Channel(2)
ch4 = pygame.mixer.Channel(3)
ch5 = pygame.mixer.Channel(4)
ch6 = pygame.mixer.Channel(5)
ch7 = pygame.mixer.Channel(6)
ch8 = pygame.mixer.Channel(7)

try:
    while True:
        while True:
            if GPIO.input(29) ==1:
                ch1.play(pygame.mixer.Sound(Drum1))
                time.sleep(0.02)
                break
            if GPIO.input(31) ==1:
                ch2.play(pygame.mixer.Sound(Drum2))
                time.sleep(0.02)
                break
            if GPIO.input(32) ==1:
                ch3.play(pygame.mixer.Sound(Drum3))
                time.sleep(0.02)
                break
            if GPIO.input(33) ==1:
                ch4.play(pygame.mixer.Sound(Cym1))
                time.sleep(0.02)
                break
            if GPIO.input(35) ==1:
                ch5.play(pygame.mixer.Sound(Cym2))
                time.sleep(0.02)
                break
            if GPIO.input(36) ==1:
                ch6.play(pygame.mixer.Sound(Cym3))
                time.sleep(0.02)
                break
            if GPIO.input(37) ==1:
                ch7.play(pygame.mixer.Sound(Cym4))
                time.sleep(0.02)
                break
            if GPIO.input(38) ==1:
                ch8.play(pygame.mixer.Sound(BassDrum))
                time.sleep(0.02)
                break

finally:
    GPIO.cleanup()

[Shaurya]

I am really really sorry.
I forgot to connect the ground pin and the GPIO pins recieved a floating voltage...
I am really sorry for the inconvenience...