Initial version

kukuc-clock.py

@@ -0,0 +1,69 @@
+import RPi.GPIO as GPIO
+import time
+from datetime import datetime
+import subprocess
+import sys
+from slovak_datetime_formatter import get_datetime_as_slovak_sentence
+
+BUTTON_TIMEOUT = 30  # pressing and holding the button longer then e.g. 2 seconds terminates playing
+PIN = 17  # listen to changes on this GPIO
+GPIO.setmode(GPIO.BCM)  # use BCM pin layout
+GPIO.setwarnings(False)
+
+
+def setup_pin():
+    GPIO.setup(PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP)
+
+def terminate_playing(proc):
+    print("Terminating playing...")
+    proc.terminate()
+    proc.wait(timeout=5)
+    print("Terminated")
+
+def play_presny_cas():
+    print("Playing presny_cas.wav")
+    proc = subprocess.Popen(["aplay", "presny_cas.wav"])
+    wait_for_button_release_or_timeout(PIN, BUTTON_TIMEOUT)
+    print("GPIO went HIGH - terminating playing")
+    terminate_playing(proc)
+
+def play_beep():
+    print("Playing beep.wav")
+    subprocess.call(["aplay", "beep.wav"])
+
+def generate_presny_cas():
+    text = get_datetime_as_slovak_sentence(datetime.now())
+    print(f"Generating presny_cas.wav for '{text}'")
+    subprocess.call(
+        [
+            "curl", "--silent", "--get", "--data-urlencode", f"text={text}", "https://tts.virtonline.eu/api/tts", "--output", "presny_cas.wav",
+        ]
+    )
+    print("Generated presny_cas.wav")
+
+def wait_for_button_release_or_timeout(pin, timeout):
+    timeout_start = time.time()
+    while time.time() < timeout_start + timeout:
+        if GPIO.input(pin) == GPIO.HIGH:
+            break
+        time.sleep(0.05)
+
+
+def handle_pin(pin):
+    print(f"GPIO {pin} LOW - event triggered")
+    generate_presny_cas()
+    play_presny_cas()
+
+try:
+    setup_pin()
+    play_beep()
+    play_beep()
+    GPIO.add_event_detect(PIN, GPIO.FALLING, callback=handle_pin, bouncetime=1000)
+    print(f"Waiting for the GPIO {PIN} to go LOW...")
+    while True:
+        time.sleep(0.01)
+except Exception:
+    print("Cought exception...")
+    sys.exit()
+finally:
+    GPIO.cleanup()