Force a refresh of the backgroun image

[plord12]

On each page I have

{"id":1,"obj":"img","src":"L:/background.png", "w":800, "h":480}

To show an image as the background. I would like this to periodically refresh.

I can upload a new background with curl

curl -s -F upload=@/tmp/background.png http://192.168.175.241/edit

But how can I get the plate to update with the new background ?

Thanks

[marsman7]

Try sending your JSON line via MQTT after the upload.

{"id":1,"obj":"img","src":"L:/background.png", "w":800, "h":480}