1  # SPDX-FileCopyrightText: 2018 Limor Fried for Adafruit Industries
 2  #
 3  # SPDX-License-Identifier: MIT
 4  
 5  # Simple NEC remote decode-and-print example
 6  # Prints out the 4-byte code transmitted by NEC remotes
 7  
 8  import pulseio
 9  import board
10  import adafruit_dotstar
11  import adafruit_irremote
12  
13  led = adafruit_dotstar.DotStar(board.APA102_SCK, board.APA102_MOSI, 1)
14  pulsein = pulseio.PulseIn(board.REMOTEIN, maxlen=120, idle_state=True)
15  decoder = adafruit_irremote.GenericDecode()
16  
17  # size must match what you are decoding! for NEC use 4
18  received_code = bytearray(4)
19  
20  print("Ready for NEC remote input!")
21  
22  while True:
23      led[0] = (0, 0, 0)   # LED off
24      pulses = decoder.read_pulses(pulsein)
25      print("\tHeard", len(pulses), "Pulses:", pulses)
26      try:
27          code = decoder.decode_bits(pulses, debug=False)
28          led[0] = (0, 100, 0)                         # flash green
29          print("Decoded:", code)
30      except adafruit_irremote.IRNECRepeatException:   # unusual short code!
31          led[0] = (100, 100, 0)                       # flash yellow
32          print("NEC repeat!")
33      except adafruit_irremote.IRDecodeException as e: # failed to decode
34          led[0] = (100, 0, 0)                         # flash red
35          print("Failed to decode: ", e.args)
36  
37  print("----------------------------")