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Content # 1.00 - Initial version by Renze Nicolai # 1.01 - Added option to select 16 pages, allowing 256 samples # 1.02 - Fixed error sample didn't work after switching to non existing one # 1.03 - Fixed page 15 error, added cancel to go to page 1. # 1.04 - Files now in dirs # 1.05 - Adhere to volume settings + boot animation # 1.06 - Option to toggle boot animation # 1.07 - Show folder empty / filled while navigating (thx @elborro) # Usage: # Play sample while holding the button (up to 4 at once) # # Requires: # MP3 Samples on the SD Card # # Button: # Play sample # # Touchpad: # Ok - Show current page # Cancel - Go to Page 1 # Left - Previous page # Right - Next page # # Sample files: # /soundboard/page<page nr>/sound0.mp3 - sound15.mp3 # # Conversion via FFMPEG: # ffmpeg -i original.mp3 -ar 22050 -ac 1 -b:a 128k soundboardfile.mp3 # # Demo samples: # https://github.com/jillesdotcom/CZ20_soundboardfiles # import os, time, machine, appconfig, display, keypad, touchpads, sndmixer settings = appconfig.get("soundboard", {"SampleFolder": "/sd/soundboard","BootAnimation": True}) print("Samplefolder:",settings['SampleFolder']) print("BootAnimation:",settings['BootAnimation']) MAX_FILES = 4 MAX_PAGES = 16 sndmixer.begin(MAX_FILES, False) global_playing = [False]*MAX_FILES global_file = [None]*MAX_FILES global_channels = [None]*MAX_FILES global_filenames = [""]*MAX_FILES global_page_empty = [False]*MAX_PAGES global_page = 0 def load_file(filename): global global_playing, global_file, global_channels, global_filenames, MAX_FILES settings = appconfig.get("soundboard", {"SampleFolder": "/sd/soundboard","BootAnimation": True}) filepath = settings["SampleFolder"]+"/page"+str(global_page)+"/"+filename try: if filename in os.listdir(settings["SampleFolder"]+"/page"+str(global_page)): for i in range(MAX_FILES): if global_filenames[i] == filepath: print("File already open",filepath,"in slot",i) return i for i in range(MAX_FILES): if not global_playing[i]: if global_file[i]: global_file[i].close() global_file[i] = open(filepath, "rb") global_filenames[i] = filepath print("Opened file",filepath,"in slot",i) return i else: print(filepath,"does not exist") return None except: print("Failed to open",filepath) return None return None def draw(button, active, error=False): x = button % 4 y = button // 4 color = 0xFFFFFF if error: color = 0xFF0000 display.drawPixel(x, y, color if active else 0x000000) display.flush() def play(index): global global_playing, global_file, global_channels, global_filenames, MAX_FILES if index < 0 or index > MAX_FILES: print("Play: invalid index") if global_playing[index]: print("Play: already playing") return channel = sndmixer.mp3_stream(global_file[index]) if not channel: print("Play: invalid channel id") return try: volume = machine.nvs_getint("system", "volume") or 255 print("Volume:",volume) sndmixer.volume(channel, volume) sndmixer.play(channel) except: pass global_channels[index] = channel global_playing[index] = True def stop(index): global global_playing, global_file, global_channels, global_filenames, MAX_FILES if index < 0 or index > MAX_FILES: print("Stop: invalid index") if not global_playing[index]: print("Stop: not playing") return channel = global_channels[index] if not channel: print("Stop: invalid channel id") return fd = global_file[index] if not fd: print("Stop: invalid fd") return try: sndmixer.stop(channel) except: pass global_playing[index] = False fd.seek(0) def on_key(key_index, pressed): print("Key",key_index,"on page",global_page,"pressed" if pressed else "released") filename = "sound{}.mp3".format(key_index) index = load_file(filename) if index != None: draw(key_index, pressed, False) if pressed: play(index) else: stop(index) else: draw(key_index, pressed, True) def on_touch(pressed): global global_page if pressed==0: draw(global_page,False) else: if pressed == touchpads.CANCEL: global_page=0 if pressed == touchpads.LEFT: if global_page>0: global_page=global_page-1 else: global_page=(MAX_PAGES-1) if pressed == touchpads.RIGHT: if global_page<(MAX_PAGES-1): global_page=global_page+1 else: global_page=0 draw(global_page,True,global_page_empty[global_page]) print("new page",global_page) touchpads.on(touchpads.OK, on_touch) touchpads.on(touchpads.LEFT, on_touch) touchpads.on(touchpads.RIGHT, on_touch) touchpads.on(touchpads.CANCEL, on_touch) keypad.add_handler(on_key) for p in range(0,16): global_page_empty[p]=True for b in range(0,16): filename=settings["SampleFolder"]+"/page"+str(p)+"/sound"+str(b)+".mp3" if os.path.isfile(filename): global_page_empty[p]=False if settings['BootAnimation']: for p in range(0,16): draw(p,True,global_page_empty[p]) time.sleep(1) for i in range(0,16): time.sleep(0.1) draw(15-i,False) else: draw(0,True) time.sleep(0.1) draw(0,False)