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| 1 | +# SPDX-FileCopyrightText: 2023 Liz Clark for Adafruit Industries |
| 2 | +# SPDX-License-Identifier: MIT |
| 3 | + |
| 4 | +import os |
| 5 | +import ssl |
| 6 | +import time |
| 7 | +import microcontroller |
| 8 | +import board |
| 9 | +import wifi |
| 10 | +import socketpool |
| 11 | +import adafruit_requests |
| 12 | +import neopixel |
| 13 | +from adafruit_ticks import ticks_ms, ticks_add, ticks_diff |
| 14 | +from adafruit_io.adafruit_io import IO_HTTP |
| 15 | + |
| 16 | +# latitude |
| 17 | +lat = 38.58 |
| 18 | +# longitude |
| 19 | +long = -121.49 |
| 20 | +# hours in 24 hour time that the pixels should be off |
| 21 | +hours_off = (0, 6) |
| 22 | +# color of the pixels when rain is expected |
| 23 | +PIXELS_COLOR = (0, 0, 255) |
| 24 | + |
| 25 | +# neopixel setup |
| 26 | +NUMPIXELS = 30 # number of neopixels |
| 27 | +BRIGHTNESS = 0.5 # A number between 0.0 and 1.0, where 0.0 is off, and 1.0 is max. |
| 28 | +PIN = board.GP0 |
| 29 | + |
| 30 | +pixels = neopixel.NeoPixel(PIN, NUMPIXELS, brightness=BRIGHTNESS, auto_write=False) |
| 31 | + |
| 32 | +# turn on NeoPixels on boot to check wiring |
| 33 | +pixels.fill(PIXELS_COLOR) |
| 34 | +pixels.show() |
| 35 | + |
| 36 | +# API request to open-meteo |
| 37 | +weather_url = "https://api.open-meteo.com/v1/forecast?" |
| 38 | +# pass latitude and longitude |
| 39 | +# will return sunrise and sunset times |
| 40 | +weather_url += "latitude=%d&longitude=%d&timezone=auto&hourly=rain&forecast_days=1" % (lat, long) |
| 41 | + |
| 42 | +# connect to SSID |
| 43 | +wifi.radio.connect(os.getenv('CIRCUITPY_WIFI_SSID'), os.getenv('CIRCUITPY_WIFI_PASSWORD')) |
| 44 | + |
| 45 | +pool = socketpool.SocketPool(wifi.radio) |
| 46 | +requests = adafruit_requests.Session(pool, ssl.create_default_context()) |
| 47 | + |
| 48 | +pool = socketpool.SocketPool(wifi.radio) |
| 49 | + |
| 50 | +# adafruit IO info |
| 51 | +aio_username = os.getenv('aio_username') |
| 52 | +aio_key = os.getenv('aio_key') |
| 53 | +location = "America/Los Angeles" |
| 54 | + |
| 55 | +# io HTTP for getting the time from the internet |
| 56 | +io = IO_HTTP(aio_username, aio_key, requests) |
| 57 | + |
| 58 | +def reset_on_error(delay, error): |
| 59 | + print("Error:\n", str(error)) |
| 60 | + print("Resetting microcontroller in %d seconds" % delay) |
| 61 | + time.sleep(delay) |
| 62 | + microcontroller.reset() |
| 63 | + |
| 64 | +# function for making http requests with try/except |
| 65 | +def get_request(tries, ping): |
| 66 | + for i in range(tries): |
| 67 | + try: |
| 68 | + n = ping |
| 69 | + except Exception as error: |
| 70 | + print(error) |
| 71 | + time.sleep(10) |
| 72 | + if i < tries - 1: |
| 73 | + continue |
| 74 | + raise |
| 75 | + break |
| 76 | + return n |
| 77 | + |
| 78 | +# pylint: disable=broad-except |
| 79 | +# function to make a request to open-meteo & time from IO |
| 80 | +def rain_check(): |
| 81 | + # gets current time |
| 82 | + now = get_request(5, io.receive_time()) |
| 83 | + h = now.tm_hour |
| 84 | + time.sleep(1) |
| 85 | + # make the API request |
| 86 | + weather_call = get_request(5, requests.get(weather_url)) |
| 87 | + # packs the response into a JSON |
| 88 | + response_as_json = weather_call.json() |
| 89 | + # gets rain forecast |
| 90 | + _chance = response_as_json['hourly']['rain'] |
| 91 | + return h, _chance |
| 92 | + |
| 93 | +# ticks time tracker |
| 94 | +clock = ticks_ms() |
| 95 | + |
| 96 | +# tracker for initial start-up state |
| 97 | +first_run = True |
| 98 | + |
| 99 | +# 15 minutes in milliseconds |
| 100 | +time_check = 900000 |
| 101 | + |
| 102 | +while True: |
| 103 | + try: |
| 104 | + # every 15 minutes... |
| 105 | + if first_run or ticks_diff(ticks_ms(), clock) > time_check: |
| 106 | + print("pinging Open-Meteo") |
| 107 | + hour, rain_chance = rain_check() |
| 108 | + print("Rain expected: %.2f mm" % rain_chance[hour]) |
| 109 | + if hour in hours_off: |
| 110 | + print("sleeping, please don't tell me it's raining") |
| 111 | + color = (0, 0, 0) |
| 112 | + else: |
| 113 | + # if rain is expected. turn pixels blue |
| 114 | + if rain_chance[hour] > 0: |
| 115 | + print("tut tut, looks like rain") |
| 116 | + color = PIXELS_COLOR |
| 117 | + # otherwise turn pixels off |
| 118 | + else: |
| 119 | + print("no rain expected") |
| 120 | + color = (0, 0, 0) |
| 121 | + if first_run: |
| 122 | + first_run = False |
| 123 | + else: |
| 124 | + pixels.fill(color) |
| 125 | + pixels.show() |
| 126 | + # reset clock |
| 127 | + clock = ticks_add(clock, time_check) |
| 128 | + except Exception as e: |
| 129 | + reset_on_error(10, e) |
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