ir_remote_light.py

import time
import board
from digitalio import DigitalInOut, Direction, Pull
import adafruit_irremote
import adafruit_dotstar
import pulseio
import touchio
import random

# NOTE: to connect, use `screen -L /dev/tty...`

# Status LED
led = adafruit_dotstar.DotStar(board.APA102_SCK, board.APA102_MOSI, 1)
STATUS_BRIGHTNESS = 0.5
led.brightness = STATUS_BRIGHTNESS

ON_CODES = [
    [ 255, 0, 207, 48 ],
    [ 136, 30, 47, 156 ],
    [ 255, 2, 111, 144 ], # "Enter"
    [ 255, 2, 183, 72 ] # Btn #3
]

OFF_CODES = [
    [ 255, 0, 239, 16 ],
    [ 136, 30, 79, 156 ],
    [ 255, 2, 159, 96 ] # Btn "stop"
]
 

TOGGLE_CODES = [
    [ 255, 2, 127, 128 ],
    [ 136, 30, 133, 156 ]
]

# Output LED
led1 = DigitalInOut(board.D3)
led1.direction = Direction.OUTPUT

# IR IN
IR_PIN = board.D2  # Pin connected to IR receiver.
 
# Create pulse input and IR decoder.
pulses = pulseio.PulseIn(IR_PIN, maxlen=200, idle_state=True)
decoder = adafruit_irremote.GenericDecode()

# Default to ON
led1.value = True
dotstar_mode = False
flicker = False

while True:
    # small delay for cleaner results
    pulses.clear()
    pulses.resume()
    if flicker:
        time.sleep(.2)
    else:
        time.sleep(0.5)

    if dotstar_mode:
        if flicker:
            led.brightness = 0.5 + float(random.randrange(0, 10, 1)) / 20.0
        else:
            led.brightness = 1
 
    # Wait for a pulse to be detected.
    detected = decoder.read_pulses(pulses, blocking=False)

    # If pulses are detected, decode + toggle if needed
    if detected:
        try:
            # Attempt to convert received pulses into numbers
            received_code = decoder.decode_bits(detected)
        except adafruit_irremote.IRNECRepeatException:
            # We got an unusual short code, probably a 'repeat' signal
            print("NEC repeat!")
            continue
        except adafruit_irremote.IRDecodeException as e:
            # Something got distorted or maybe its not an NEC-type remote?
            print("Failed to decode: ", e.args)
            continue
    
        print("code: %s" % received_code)

        # Mode #2 - Green
        if received_code == [255, 2, 247, 8]:
            led1.value = False
            led.fill([0, 255, 0])
            dotstar_mode = True
            led.brightness = 1

        # Mode #2 - Red
        elif received_code == [255, 2, 119, 136]:
            led1.value = False
            led.fill([255, 0, 0])
            dotstar_mode = True
            led.brightness = 1
        
        # Mode #3 - Blue
        elif received_code == [255, 2, 215, 40]:
            led1.value = False
            led.fill([80, 100, 255])
            dotstar_mode = True
            led.brightness = 1

        # Mode #4 - Yellow
        elif received_code == [255, 2, 87, 168]:
            led1.value = False
            led.fill([255, 200, 0])
            dotstar_mode = True
            led.brightness = 1

        # Mode #5 - White
        elif received_code == [255, 2, 151, 104]:
            led1.value = False
            led.fill([255, 255, 255])
            dotstar_mode = True
            led.brightness = 1

        # Toggle light on
        elif received_code in ON_CODES:
            led1.value = True
            print("got on code")
            led.brightness = STATUS_BRIGHTNESS
            led.fill([0, 255, 0])
            time.sleep(0.25)
            led.fill([0, 0, 0])
            dotstar_mode = False

        # Toggle light off
        elif received_code in OFF_CODES:
            led1.value = False
            print("got off code")
            led.brightness = STATUS_BRIGHTNESS
            dotstar_mode = False
            led.fill([0, 255, 0])
            time.sleep(0.25)
            led.fill([0, 0, 0])

        # Invert light status
        elif received_code in TOGGLE_CODES:
            led1.value = not led1.value
            print("got toggle code")
            led.brightness = STATUS_BRIGHTNESS
            led.fill([0, 255, 0])
            time.sleep(0.25)
            led.fill([0, 0, 0])
            dotstar_mode = False

        # Flicker on/off
        elif received_code == [255, 2, 143, 112]:
            flicker = not flicker
            print("toggle flicker to %s" % flicker)
            time.sleep(0.5)

        # Unknown code - red color
        elif not dotstar_mode:
            print("unknown code")
            led.brightness = STATUS_BRIGHTNESS
            led.fill([255, 0, 0])
            time.sleep(0.5)

        # If not in dotstar mode, clear
        if not dotstar_mode:
            led.brightness = STATUS_BRIGHTNESS
            led.fill([0, 0, 0])
        
    else:
        pass