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test_button.py

+import grovepi
+import time
+
+# Grove Port Assignments
+button = 3   # D3
+led = 5      # D5 (optional for feedback)
+
+# Setup
+grovepi.pinMode(button, "INPUT")
+grovepi.pinMode(led, "OUTPUT")
+
+# Debounce settings
+last_state = 1  # Assuming pull-up, so default is HIGH (not pressed)
+last_debounce_time = 0
+debounce_delay = 0.05  # 50 milliseconds
+
+print("Listening for button presses...")
+
+try:
+    while True:
+        current_time = time.time()
+        current_state = grovepi.digitalRead(button)
+
+        # Detect state change with debounce
+        if current_state != last_state:
+            last_debounce_time = current_time
+
+        if (current_time - last_debounce_time) > debounce_delay:
+            if current_state == 0 and last_state == 1:
+                print("Button PRESSED")
+                # Toggle LED for feedback
+                grovepi.digitalWrite(led, 1)
+                time.sleep(0.2)
+                grovepi.digitalWrite(led, 0)
+            elif current_state == 1 and last_state == 0:
+                print("Button RELEASED")
+
+            last_state = current_state
+
+        time.sleep(0.01)
+
+except KeyboardInterrupt:
+    print("Button monitoring stopped.")
+except IOError as e:
+    print(f"I/O Error: {e}")