139 lines
3.3 KiB
Python
139 lines
3.3 KiB
Python
from machine import Pin, UART
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import time
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# ============================================================
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# PIN-EMPFEHLUNGEN (Pico 2 W)
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# ============================================================
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# UART für DFPlayer-kompatibles MP3-Modul
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UART_ID = 1
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UART_TX_GPIO = 8 # Pico TX -> MP3 RX
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UART_RX_GPIO = 9 # Pico RX <- MP3 TX
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# Buttons (jeweils gegen GND, interner Pull-Up)
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GPIO_CRY = 2
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GPIO_WHIM = 3
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GPIO_GIG = 4
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GPIO_STOP = 5
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GPIO_POOP = 10
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# Pumpen-Ausgang (später Treiber/ULN2003 etc.)
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GPIO_PUMP_OUT = 7
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# ============================================================
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# DFPLAYER / MP3-MODUL SETUP (laut Datenblatt 9600 baud, 3.3V TTL)
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# ============================================================
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uart = UART(
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UART_ID,
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baudrate=9600,
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bits=8,
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parity=None,
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stop=1,
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tx=Pin(UART_TX_GPIO),
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rx=Pin(UART_RX_GPIO),
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)
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def dfplayer_cmd(cmd, param=0, feedback=False):
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"""
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DFPlayer Serial Protocol:
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0x7E 0xFF 0x06 CMD FB PAR_H PAR_L CHK_H CHK_L 0xEF
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"""
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start = 0x7E
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ver = 0xFF
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ln = 0x06
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fb = 0x01 if feedback else 0x00
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ph = (param >> 8) & 0xFF
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pl = param & 0xFF
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checksum = -(ver + ln + cmd + fb + ph + pl) & 0xFFFF
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ch = (checksum >> 8) & 0xFF
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cl = checksum & 0xFF
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packet = bytes([start, ver, ln, cmd, fb, ph, pl, ch, cl, 0xEF])
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uart.write(packet)
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def df_set_volume(vol):
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"""Volume 0..30"""
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vol = max(0, min(30, vol))
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dfplayer_cmd(0x06, vol)
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def df_play_mp3(track_no):
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"""
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Play track from /mp3 folder:
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/mp3/0001.mp3 -> track_no=1
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/mp3/0002.mp3 -> track_no=2
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...
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"""
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dfplayer_cmd(0x12, track_no)
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def df_stop():
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"""Stop playback"""
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dfplayer_cmd(0x16, 0)
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def df_pause():
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"""Pause (optional)"""
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dfplayer_cmd(0x0E, 0)
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def df_resume():
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"""Resume (optional)"""
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dfplayer_cmd(0x0D, 0)
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# Kurze Boot-Wartezeit, damit Modul initialisieren kann
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time.sleep_ms(800)
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df_set_volume(30) # 0..30, ggf. anpassen
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# ============================================================
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# BUTTONS SETUP
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# ============================================================
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btn_cry = Pin(GPIO_CRY, Pin.IN, Pin.PULL_UP)
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btn_whim = Pin(GPIO_WHIM, Pin.IN, Pin.PULL_UP)
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btn_gig = Pin(GPIO_GIG, Pin.IN, Pin.PULL_UP)
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btn_stop = Pin(GPIO_STOP, Pin.IN, Pin.PULL_UP)
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btn_poop = Pin(GPIO_POOP, Pin.IN, Pin.PULL_UP)
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# Entprellung
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DEBOUNCE_MS = 80
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last_ms = {
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"cry": 0,
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"whim": 0,
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"gig": 0,
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"stop": 0,
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"pee": 0,
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"poop": 0,
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}
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def is_pressed(pin: Pin) -> bool:
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"""Active-low button"""
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return pin.value() == 0
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def allow(key: str) -> bool:
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now = time.ticks_ms()
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if time.ticks_diff(now, last_ms[key]) > DEBOUNCE_MS:
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last_ms[key] = now
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return True
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return False
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# ============================================================
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# MAIN LOOP
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# ============================================================
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while True:
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# STOP hat Priorität (soll sofort alles beenden)
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if is_pressed(btn_stop) and allow("stop"):
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df_stop()
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# Sounds
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if is_pressed(btn_cry) and allow("cry"):
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df_play_mp3(1) # /mp3/0001.mp3
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if is_pressed(btn_whim) and allow("whim"):
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df_play_mp3(2) # /mp3/0002.mp3
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if is_pressed(btn_gig) and allow("gig"):
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df_play_mp3(4) # /mp3/0004.mp3
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if is_pressed(btn_poop) and allow("poop"):
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df_play_mp3(3) # /mp3/0003.mp3
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time.sleep_ms(10)
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