実家の冷蔵庫の開閉監視用CircuitPythonスクリプト

akkie_wifi.py

import adafruit_connection_manager
import wifi

class akkie_wifi():
    def __init__(self, ap_list):
        self.ap_list = ap_list
        self.connected = False
        self.pool = None
        self.ssl_context = None

    def connect(self):
        wifi.radio.start_station()
        wifi.radio.enabled = True
        for ap in self.ap_list:
            try:
                print("Trying to connect with %s..." % ap[0])
                wifi.radio.connect(ap[0], ap[1])
                print("Connected with %s." % ap[0])
                self.pool = adafruit_connection_manager.get_radio_socketpool(wifi.radio)
                self.ssl_context = adafruit_connection_manager.get_radio_ssl_context(wifi.radio)
                self.connected = True
                break
            except Exception as e:
                print("Failed to connect: %s" % e)
        if not self.connected:
            print("Failed to connect for all aps.")

    def disconnect(self):
        wifi.radio.enabled = False
        wifi.radio.stop_station()
        self.connected = False
        self.pool = None

reizouko_slack.py

import board
import digitalio
import time
import adafruit_requests
from akkie_wifi import akkie_wifi
import microcontroller

# ネットワークの用意
network = akkie_wifi( (('SSID', 'PASSPHRASE'),) )
requests = False

# スイッチ
sw = digitalio.DigitalInOut(board.GP2)
sw.switch_to_input(pull=digitalio.Pull.UP)
last_value = False

# 本体LED。冷蔵庫が開いてる間ONにする
led = digitalio.DigitalInOut(board.LED)
led.direction = digitalio.Direction.OUTPUT
led.value = False

# SlackのIncoming Webhook
slack_webhook_url = "https://hooks.slack.com/services/XXXXXXXX/XXXXXXXX/XXXXXXXXXXXXXXX"

# Slackに投稿する関数
def post_slack(text, icon=":reizouko_closed:"):
    global requests
    network.connect()
    if not network.connected:
        print("Failed to post.")
    print("Posting to slack.")
    if not requests:
        requests = adafruit_requests.Session(network.pool, network.ssl_context)
    payload = {
        "text": text,
        "icon_emoji": icon
    }
    response = requests.post(slack_webhook_url, json=payload)
    network.disconnect()
    print("Post successfully.")

try:
    # 起動のごあいさつ
    post_slack("冷蔵庫Botが起動しました")
    # 以下ループ
    while True:
        if sw.value != last_value:
            last_value = sw.value
            if not sw.value:
                print("Closed")
                led.value = False
                post_slack("冷蔵庫が閉じました", icon=":reizouko_closed:")
            else:
                print("Open")
                led.value = True
                post_slack("冷蔵庫が開きました", icon=":reizouko_opened:")
except Exception as e:
    # なにかあったら、すべてをにぎりつぶし、とりあえずリセットする
    try:
        post_slack("なにかあったので冷蔵庫Botをリセットします(%s)" % e)
    except:
        # これすらエラーになる分はどうしようもないのでパス
        pass
    time.sleep(30)
    # ハードリセット
    microcontroller.reset()