aarov/raspi-iot-ryhmatyo
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Enhance button state handling with debounce logic to prevent false triggers

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Aaro Varis
2026-01-15 10:50:49 +02:00
parent 9775a97903
commit 959e0d3a10
1 changed files with 9 additions and 2 deletions
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11
init.py
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@@ -25,6 +25,8 @@ class AlarmClock:
lastKnownButtonState: bool = False lastKnownButtonState: bool = False
lcd: JHD1802 lcd: JHD1802
lastButtonPressTime: float = 0.0 lastButtonPressTime: float = 0.0
lastButtonStateChangeTime: float = 0.0
debounceDelay: float = 0.05 # 50ms debounce delay
def __init__(self, pins: dict = {}): def __init__(self, pins: dict = {}):
self.ledGpio = GPIO(pins.get("led", 5), GPIO.OUT) self.ledGpio = GPIO(pins.get("led", 5), GPIO.OUT)
self.buttonGpio = GPIO(pins.get("button", 6), GPIO.IN) self.buttonGpio = GPIO(pins.get("button", 6), GPIO.IN)
@@ -43,9 +45,14 @@ class AlarmClock:
def loop(self): def loop(self):
currentButtonState = not self.buttonGpio.read() currentButtonState = not self.buttonGpio.read()
currentTime = time()
# Only process button state change if debounce delay has passed
if currentButtonState != self.lastKnownButtonState: if currentButtonState != self.lastKnownButtonState:
self.lastKnownButtonState = currentButtonState if (currentTime - self.lastButtonStateChangeTime) >= self.debounceDelay:
self.onButtonPress("button", currentButtonState) self.lastKnownButtonState = currentButtonState
self.lastButtonStateChangeTime = currentTime
self.onButtonPress("button", currentButtonState)
def onButtonPress(self, button: str, state: bool): def onButtonPress(self, button: str, state: bool):