refs #3

led 제어 코드

tutorial/3.led_control.py

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+import RPi.GPIO as GPIO
+import time
+
+# Set the GPIO mode (BCM for GPIO numbers, BOARD for physical pin numbers)
+# BCM is generally recommended for clarity.
+GPIO.setmode(GPIO.BCM)
+
+# Define the GPIO pin connected to the LED
+# LED_PIN = 17 # You can change this to any available GPIO pin (e.g., 2, 3, 4, etc.)
+LED_RED_PIN = 17
+LED_YELLOW_PIN = 27
+LED_GREEN_PIN = 22
+LED_BLUE_PIN = 5
+
+
+# Set up the GPIO pin as an output
+# GPIO.setup(LED_PIN, GPIO.OUT)
+GPIO.setup(LED_RED_PIN, GPIO.OUT)
+GPIO.setup(LED_YELLOW_PIN, GPIO.OUT)
+GPIO.setup(LED_GREEN_PIN, GPIO.OUT)
+GPIO.setup(LED_BLUE_PIN, GPIO.OUT)
+
+# print(f"Controlling LED on GPIO {LED_PIN}. Press Ctrl+C to exit.")
+
+try:
+    while True:
+        # Turn the LED on (set output to HIGH)
+        # GPIO.output(LED_PIN, GPIO.HIGH)
+        GPIO.output(LED_RED_PIN, GPIO.HIGH)
+        GPIO.output(LED_YELLOW_PIN, GPIO.HIGH)
+        GPIO.output(LED_GREEN_PIN, GPIO.HIGH)
+        GPIO.output(LED_BLUE_PIN, GPIO.HIGH)
+        print("LEDs ON")
+        time.sleep(1) # Wait for 1 second
+
+        # Turn the LED off (set output to LOW)
+        # GPIO.output(LED_PIN, GPIO.LOW)
+        GPIO.output(LED_RED_PIN, GPIO.LOW)
+        GPIO.output(LED_YELLOW_PIN, GPIO.LOW)
+        GPIO.output(LED_GREEN_PIN, GPIO.LOW)
+        GPIO.output(LED_BLUE_PIN, GPIO.LOW)
+        print("LEDs OFF")
+        time.sleep(1) # Wait for 1 second
+
+except KeyboardInterrupt:
+    # Clean up GPIO settings when Ctrl+C is pressed
+    print("\nExiting program and cleaning up GPIO...")
+    GPIO.cleanup()