tareqrafed / eink-embedded

ESP8266 E-ink Embedded Part

The main file calls these functions

    wifi_init(); // init the wifi module
    GPIO_Init(); // init gpio module
    Init_SPI(); // init spi 
    EPD_Init(); // init eink display (should be called after gpio and spi init)
    mqtt_connect_to_server(); // subscribes to mqtt and publish fetch command (fetch command is one of the custom protocol commands between client and the embedded system) 

in the components folder, you will find the eink folder, which holds the display driver, not all features of the display were written only the one I needed to do the MVP.

in the mqtt_local which was called this because of conflict with the sdk library mqtt, you'll find a hardcoded (should be changed) mqtt topics, starts with device/${current-device-serialnumber}, the serial number is crucial since it is the only way the server can differentiate between the embedded devices. you can also change the mqtt uri, mqtt broker user and password from mqtt_local.c but it would be better if this changes.

you can change wifi ssid and password from wifi.h

Contributing

First, you have to setup ESP8266_RTOS_SDK, just follow the instructions, and make sure you understand the build system before you add code, as it enhance your embedded device performance

to flash code make flash

to flash and monitor make flash monitor