levell3r/randomimageserver

Arduino Sketch and flask webservers to display random local images

**Overview**

An Ardiuno sketch for a Lilygo T5 4.7 epaper display. This unit has a builtin ESP32 and 18650 battery holder. I wanted something that could sit on my table on rotate through some Film/Tv artwork.

The Highlevel Logic

A @reboot cron job loads the APIserver at server bootup.

The device boots up, joins WiFi, calls the /load API which starts the imageserver App.

imageserver APP converts a randomly picked jpg from the folder to B64, adjusts the brightness and resolution for the Epaper screen and serves it on /image

Device delays for 20 seconds waiting for /image API to load, then streams the image from /image API, displays it

Device calls /shutdown API which kills the imageserver App. Then goes into sleep mode for the set time (see sleep_duration variable)

loop

Some Notes

The API Server will need the path changing to wherever you are running the script from

Imageserver needs the location of the jpgs changing to wherever you store yours. I have symlinked mine to a folder which is scraped with all my Plex movies and TV covers.

The Arduio Sketch will need the IP address of the server running both Apps

The arduino_screts.h file will need to be renamed (delete the SAMPLE_) and updated with your own WiFi creds.

Future Jobs;

convert paths to variables

setup a function to check for night hours and increase sleep length

maybe look at the brightness adj calcs again. Possibly still a little contrasty

Dan

Also,
Thanks to;
https://github.com/srslynow For providing the basis for this.