An Electronic Shelf Label is a device that's typically attached to the front edge of retail shelving.
ESL Firebase Edition V2.0 utilizes the AES-256 in CBC mode and Google Firebase. It doesn't require an expensive gateway to function, once configured, all it needs is a power supply and a Wi-Fi access point.
ESL Firebase Edition V2.0 allows you to operate as many of them as you wish, provided that each has its own unique ID, and there's enough power and bandwidth for all of them.
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Raspberry pi + adafruit cap tft + ada fruit case +python code
Raspberry pi
adafruit capacitive touch tft
ada fruit case for pi
ldr +capacitor for background light level
dfc77 receiver for time
python code based on wiringpi2, pygame