ESPTimeCast

MATCHBOX - ESP8266

MAX7219 Module

Wemos D1 Mini

<html><body> <figure><img src="https://projects.arduinocontent.cc/577bec7b-df4a-4a5b-bb92-f0b1aa9782b3.png"/><figcaption></figcaption></figure> <figure><iframe src="https://www.youtube.com/watch?v=RFcO5PkslgQ"></iframe></figure> ESPTimeCast is a WiFi-connected LED matrix clock and weather station based on ESP8266 and MAX7219. It displays the current time, day of the week (with custom symbols), and local weather fetched from OpenWeatherMap. Setup and configuration are fully managed via a built-in web interface. <h3>✨ Features</h3>LED Matrix Display (8x32) powered by MAX7219, with custom font support Simple Web Interface for all configuration (WiFi, weather, time zone, display durations, and more) Automatic NTP Sync with robust status feedback and retries Day of Week Display with custom icons/symbols Weather Fetching from OpenWeatherMap (every 5 minutes, with error handling) Temperature Unit Selector (`C`, `F`, or `K`) Fallback AP Mode for easy first-time setup or WiFi recovery, with `/ap_status` endpoint Timezone Selection from IANA names (DST integrated on backend) Persistent Config stored in LittleFS, with backup/restore system Status Animations for WiFi conection, AP mode, time syncing. Advanced Settings panel with: <ol><li>Custom Primary/Secondary NTP server input </li><li>24/12h clock mode toggle (24-hour default) </li><li>Flip display (180 degrees) </li><li>Adjustable display brightness </li></ol> <h3>🪛 Wiring</h3>Wemos D1 Mini (ESP8266) → MAX7219 | Wemos D1 Mini | MAX7219 | |:----------------------:|:--------------:| | GND | GND | | D6 | CLK | | D7 | CS | | D8 | DIN | | 3V3 | VCC | <h3>🌐 Web UI &amp; Configuration</h3><ol><li>The built-in web interface provides full configuration for: </li><li>WiFi settings (SSID &amp; Password) </li><li>Weather settings (OpenWeatherMap API key, City, Country, Units) </li><li>Time zone (will auto-populate if TZ is found) </li><li>Display durations for clock and weather (milliseconds) </li><li>Advanced Settings (see below) </li></ol> <h3>### First-time Setup / AP Mode ###</h3>1. Power on the device. If WiFi fails to connect, the device will auto-starts in AP mode: SSID: "ESPTimeCast" Password: "12345678" Open "http://192.168.4.1" in your browser. 2. Set your WiFi and all other options. 3. Click "Save Settings" – the device saves config, reboots, and connects. <figure><img src="https://projects.arduinocontent.cc/74c39de6-d2b3-47dd-850d-4ac22f374bc8.png"/><figcaption></figcaption></figure><h3>⚙️ Advanced Settings</h3><ol><li>Click the cog icon next to “Advanced Settings” in the web UI to reveal extra configuration options. </li><li>Available advanced settings: </li><li>Primary NTP Server: Override the default NTP server (e.g. `pool.ntp.org`) </li><li>Secondary NTP Server: Fallback NTP server (e.g. `time.nist.gov`) </li><li>24/12h Clock: Switch between 24-hour and 12-hour time formats (24-hour efault) </li><li>Flip Display: Invert the display vertically/horizontally </li><li>Brightness: 0 (dim) to 15 (bright) </li></ol>Tip: Changing these options takes effect after saving and rebooting.* <h3>📝 Configuration Notes</h3>OpenWeatherMap API Key: <a href=" https://openweathermap.org/api ">Get yours here </a>City Name: e.g. "Tokyo", "London", etc. Country Code: 2-letter code (e.g., JP, GB) Time Zone: Select from IANA zones (e.g., "America/New_York", handles DST automatically) Units: metric (°C), imperial (°F) or standard (K) <h3>☕ Support this project</h3>If you like this project, you can <a href="https://paypal.me/officialuphoto">buy me a coffee! </a> </body></html>