ESP8266 RGB LED Matrix Bar Weather Station

/* =========================================================================

 *  Author: Zalophus Dokdo (https://zddh.blogspot.com)

 *  Date: 31/08/2017       (https://zalophus.tistory.com/)

 *  License: GPL v2        (https://github.com/ZalophusDokdo/RGB_LED_Matrix_Bar_Weather_Station)

 * =========================================================================

 *  RGB LED Matrix Bar Weather Station V1.0.9 (Publish: 2018/01/02)

 * =========================================================================

 *  -> Added webapp dark mode theme (2021/06/25)

 *  -> Added quote and scroll button (2021/06/01)

 *  -> Added Show Rainbow Clock Button (2021/03/01)

 *  -> Timer treated as optional on upload (affects memory)

 *  -> Added File Server with SPIFFS Edit (2020/10/24) - Hold

 *  -> Added clock font (Normal/Slim/Digital/Round Digital)(2020/10/31)

 *  -> Added WS2812B RGB LED NeoMatrix Clock with setting page(WebApp) 

 *     ................. SPIFFS (2020/10/20) - Hold

 *  -> Web page separation: Main home page and message page (2020/09/12)

 *  -> Change WebApp scroll control (2021/01/11)

 *  -> Added timer setting (2020/10/13)

 *  -> Added alarm message setting function:

 *     ................. Set scroll message to alarm message (2020/09/13)

 *  -> Added alarm setting (2020/09/10)

 *  -> AM-PM Mode, 24-hour clock, 12-hour clock (2020/09/09)

 *  -> Google clock replaced with NTP clock (2020/09/07)

 *  -> Resolved a problem that initialized when receiving Google clock

 *  -> Added web page refresh time (2020/09/06)

 *  -> Added RGB LED: WS2812B RGB LED (2020/09/05)

 *  -> Error: ets jan 8 2013,rst cause:2, boot mode:(3,6) (2020/09/05)

 *  -> Added MQTT - Adafruit IO MQTT + IFTTT + Google Assistant (2020/07/30)

 *  -> Update Count 7.5m to 60m (2020/07/22)

 *  -> Added CHAR_SHIFT_DELAY - Config (2020/07/22)

 *  -> Change DHT12 Library (2018/03/12)

 * =========================================================================

 *  Parts List:

 *  - 6 x MAX7219 8x8 LED Matrix or WS2812B 8x8 RGB LED Matrix

 *  - 1 x WeMos D1 mini

 *  - 1 x Interface shield

 *  Additional Parts:

 *  - N x DS18B20 temperature sensor

 *  - 1 x DHT22 temperature and humidity sensor

 *  - 1 x DHT12 temperature and humidity sensor

 *  - N x WS2812B RGB LED Strip (Light)

 *  - 1 x Push button switch

 *  - 1 x On/Off button switxh

 *  - 1 x Power On/Off switxh

 * -------------------------------------------------------------------------

 *  Fuctions:

 *  - OTA

 *  - mDNS

 *  - WiFi Manager

 *  - Web Server (WebUI)

 *  - LED Matrix Clock

 *  - Open Weather Map Weather Forecast

 *  - Indoor and Outdoor temperature and Humidity sensor monitor

 *  - Scrolling message

 *  - Scroll Push Switch

 *  - Lamp Push Switch

 *  - Alarm time setting (WebUI)

 *  - Alarm On/Off and Switch

 *  - Timer Start/Stop and Contorl

 *  - Google Assistant: Adafruit IO MQTT + IFTTT

 * =========================================================================

 */