1. import RPi.GPIO as GPIO
2. import time
3.  
4. IR_PIN = 17  # GPIO pin connected to the IR receiver
5.  
6. def capture_ir_signals():
7.     print("Capturing IR signals. Press Ctrl+C to stop...")
8.     try:
9.         while True:
10.             pulse_lengths = []
11.             # Wait for the start of a pulse
12.             while GPIO.input(IR_PIN) == GPIO.HIGH:
13.                 pass
14.             # Record the start time of the pulse
15.             start_time = time.time()
16.             # Wait for the end of the pulse
17.             while GPIO.input(IR_PIN) == GPIO.LOW:
18.                 pass
19.             # Record the duration of the pulse
20.             pulse_duration = time.time() - start_time
21.             pulse_lengths.append(pulse_duration)
22.             # Continue to record pulse lengths until the signal ends
23.             while GPIO.input(IR_PIN) == GPIO.HIGH:
24.                 start_time = time.time()
25.                 while GPIO.input(IR_PIN) == GPIO.LOW:
26.                     pass
27.                 pulse_duration = time.time() - start_time
28.                 pulse_lengths.append(pulse_duration)
29.             # Decode the pulse lengths
30.             decode_signal(pulse_lengths)
31.     except KeyboardInterrupt:
32.         print("Stopping IR signal capture.")
33.     finally:
34.         GPIO.cleanup()
35.  
36. def decode_signal(pulse_lengths):
37.     # Example decoding logic (replace with your own)
38.     # This is a very basic example, actual decoding may be more complex
39.     print("Received signal:", pulse_lengths)
40.  
41. if __name__ == "__main__":
42.     GPIO.setmode(GPIO.BCM)
43.     GPIO.setup(IR_PIN, GPIO.IN)
44.     capture_ir_signals()
45.