Using Adafruit IO makes things even easier for getting local time. All the time zone, day light saving time, etc. details are taken care of by the AIO server. This does require setting up an AIO account. However, the time query service is available with even the free level account.

Add AIO info to secrets.py

In addition to the wifi information that was previously added to the secrets.py file, be sure it also includes your AIO username and API key. These should be added in the secrets dictionary as aio_username and aio_key.

Checkout this Learn Guide page for more information:

Then, to get the AIO based code, click on the Download Project Bundle button in the window below. It will download as a zipped folder.

# SPDX-FileCopyrightText: 2022 Carter Nelson for Adafruit Industries
#
# SPDX-License-Identifier: MIT

import time
import ssl
import board
import rtc
import wifi
import socketpool
import adafruit_requests
import neopixel

# --| User Config |--------------------------------
WAKE_UP_HOUR = 7  # alarm time hour (24hr)
WAKE_UP_MIN = 30  # alarm time minute
SLEEP_COLOR = (0, 25, 150)  # sleepy time color as tuple
WAKEUP_COLOR = (255, 100, 0)  # wake up color as tuple
FADE_STEPS = 100  # wake up fade animation steps
FADE_DELAY = 0.1  # wake up fade animation speed
NEO_PIN = board.SCK  # neopixel pin
NEO_CNT = 12  # neopixel count
# -------------------------------------------------

# Set up NeoPixels
pixels = neopixel.NeoPixel(NEO_PIN, NEO_CNT)

# Get wifi details and more from a secrets.py file
try:
    from secrets import secrets
except ImportError:
    print("WiFi secrets are kept in secrets.py, please add them there!")
    raise

# Setup AIO time query URL
TIME_URL = "https://io.adafruit.com/api/v2/"
TIME_URL += secrets["aio_username"]
TIME_URL += "/integrations/time/strftime?x-aio-key="
TIME_URL += secrets["aio_key"]
TIME_URL += "&fmt=%25Y%3A%25m%3A%25d%3A%25H%3A%25M%3A%25S"

# Connect to local network
try:
    wifi.radio.connect(secrets["ssid"], secrets["password"])
except ConnectionError:
    print("Wifi failed to connect.")
    while True:
        pixels.fill(0)
        time.sleep(0.5)
        pixels.fill(0x220000)
        time.sleep(0.5)

print("Wifi connected.")

# Get current time using AIO
print("Fetching time.")
pool = socketpool.SocketPool(wifi.radio)
requests = adafruit_requests.Session(pool, ssl.create_default_context())
response = [int(x) for x in requests.get(TIME_URL).text.split(":")]
response += [0, 0, -1]
rtc.RTC().datetime = time.struct_time(response)

# Fill with sleepy time colors
pixels.fill(SLEEP_COLOR)

# Wait for wake up time
now = time.localtime()
print("Current time: {}:{}".format(now.tm_hour, now.tm_min))
print("Waiting for alarm {}:{}".format(WAKE_UP_HOUR, WAKE_UP_MIN))
while not (now.tm_hour == WAKE_UP_HOUR and now.tm_min == WAKE_UP_MIN):
    # just sleep until next time check
    time.sleep(30)
    now = time.localtime()

# Sunrise animation
print("Waking up!")
r1, g1, b1 = SLEEP_COLOR
r2, g2, b2 = WAKEUP_COLOR
dr = (r2 - r1) / FADE_STEPS
dg = (g2 - g1) / FADE_STEPS
db = (b2 - b1) / FADE_STEPS

for _ in range(FADE_STEPS):
    r1 += dr
    g1 += dg
    b1 += db
    pixels.fill((int(r1), int(g1), int(b1)))
    time.sleep(FADE_DELAY)

print("Done.")

Open the zip file and copy code.py to your CIRCUITPY folder. Also copy the contents of the lib folder to the CIRCUITPY/lib folder.

Now checkout the Using the Alarm section for how to configure things.

This guide was first published on Jul 12, 2022. It was last updated on Jul 20, 2024.

This page (Code Using AIO) was last updated on Jul 20, 2024.

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