..., and then saves it to the database.
An electronic shelf label is a device that displays relevant product information, they're usually attached to the front edge of retail shelving. A typical ESL consists of a display and a simple microcontroller that controls the display.
*V2.0 now supports ESP32 CYD
You can learn more on:
Github: github.com/Northstrix/Electronic-Shelf-Label-Management-System
Instructables: https://www.instructables.com/DIY-Electronic-Shelf-Label-Management-System-V20/