1  # SPDX-FileCopyrightText: 2022 Carter Nelson for Adafruit Industries
 2  #
 3  # SPDX-License-Identifier: MIT
 4  
 5  import time
 6  import board
 7  import rtc
 8  import socketpool
 9  import wifi
10  import adafruit_ntp
11  import neopixel
12  
13  # --| User Config |--------------------------------
14  TZ_OFFSET = -7  # time zone offset in hours from UTC
15  WAKE_UP_HOUR = 7  # alarm time hour (24hr)
16  WAKE_UP_MIN = 30  # alarm time minute
17  SLEEP_COLOR = (0, 25, 150)  # sleepy time color as tuple
18  WAKEUP_COLOR = (255, 100, 0)  # wake up color as tuple
19  FADE_STEPS = 100  # wake up fade animation steps
20  FADE_DELAY = 0.1  # wake up fade animation speed
21  NEO_PIN = board.SCK  # neopixel pin
22  NEO_CNT = 12  # neopixel count
23  # -------------------------------------------------
24  
25  # Set up NeoPixels
26  pixels = neopixel.NeoPixel(NEO_PIN, NEO_CNT)
27  
28  # Get wifi details and more from a secrets.py file
29  try:
30      from secrets import secrets
31  except ImportError:
32      print("WiFi secrets are kept in secrets.py, please add them there!")
33      raise
34  
35  # Connect to local network
36  try:
37      wifi.radio.connect(secrets["ssid"], secrets["password"])
38  except ConnectionError:
39      print("Wifi failed to connect.")
40      while True:
41          pixels.fill(0)
42          time.sleep(0.5)
43          pixels.fill(0x220000)
44          time.sleep(0.5)
45  
46  print("Wifi connected.")
47  
48  # Get current time using NTP
49  print("Fetching time from NTP.")
50  pool = socketpool.SocketPool(wifi.radio)
51  ntp = adafruit_ntp.NTP(pool, tz_offset=TZ_OFFSET)
52  rtc.RTC().datetime = ntp.datetime
53  
54  # Fill with sleepy time colors
55  pixels.fill(SLEEP_COLOR)
56  
57  # Wait for wake up time
58  now = time.localtime()
59  print("Current time: {:2}:{:02}".format(now.tm_hour, now.tm_min))
60  print("Waiting for alarm {:2}:{:02}".format(WAKE_UP_HOUR, WAKE_UP_MIN))
61  while not (now.tm_hour == WAKE_UP_HOUR and now.tm_min == WAKE_UP_MIN):
62      # just sleep until next time check
63      time.sleep(30)
64      now = time.localtime()
65  
66  # Sunrise animation
67  print("Waking up!")
68  r1, g1, b1 = SLEEP_COLOR
69  r2, g2, b2 = WAKEUP_COLOR
70  dr = (r2 - r1) / FADE_STEPS
71  dg = (g2 - g1) / FADE_STEPS
72  db = (b2 - b1) / FADE_STEPS
73  
74  for _ in range(FADE_STEPS):
75      r1 += dr
76      g1 += dg
77      b1 += db
78      pixels.fill((int(r1), int(g1), int(b1)))
79      time.sleep(FADE_DELAY)
80  
81  print("Done.")