This project can be used to stay in contact with people you care about. You can send messages via a web application to a device including a quick drawing on a 8x8 LED Matrix (check out the pictures).
- ESP8266
- AZDelivery HD44780 2004 LCD
- AZDelivery MAX7219 8x8 Dot Matrix MCU 64
- AZDelivery KY-004 Taster
I build this project for myself. Therefore, I don't provide a ready to use solution. It is a project from a developer to developers. Theferore, don't be afraid to dig down into the source code to figure things out.
In order to use HTTPS I would run the Webapplication behind an proxy (I use the nginx proxy manager). Just start the nginx proxy manager in a seperate docker container and use an external network proxy_net.
Then just run docker-compose up -d in the repository root. After that setup an proxy host which points to message-device:80. Make sure to create an TLS Certificate and disallow plain HTTP connections to stay secure.
| Component | Component Pin | NodeMCU Pin |
|---|---|---|
| Button | S | RX |
| LED Matrix | DIN | D7 |
| LED Matrix | CS | D8 |
| LED Matrix | CLK | D5 |
| LCD | SDA | D2 |
| LCD | SCL | D1 |
The project is build via platform.io. There are certain settings that can be configured in the platformio.ini file:
- WIFI_SSID: The WIFI SSID
- WIFI_PASSWORD: The WIFI Password
- DEVICE_ID: The Device ID for which the device can receive messages. A new Device ID can be added in the web application under
application/ClientApp/src/app/new-message/new-message.component.tsin thereceiversarray. - API_USER: The API User for the HTTP Basic Authentication
- API_PASSWORD: The API Password for the HTTP Basic Authentication
- DOMAIN: The Domain where the API is hosted
- MATRIX_TYPE: The used Matrix type. See
majicdesigns/MD_MAX72XXlibrary for more details.
