[UncleEntity]

I wonder if using Bluetooth LE would use less power as you wouldn’t have to connect to a hotspot?

The display could wake up and ping the raspberry pi which would send it the new image and everyone goes back to sleep until the next morning.

Probably doesn’t matter all that much but if you wanted maximum battery life, maybe?

[sho_hn]

Might be worth trying :-). BLE has the lower data rate so the transfer takes overall longer, though. Wonder how that adds up.

I already have tuned things to lower the RF power output of the esp32 Wifi habitually - there's a Fritz Wifi repeater just across the room in a corner with near line of sight, so the little thing doesn't exactly have to strain to reach the hotspot.

Also curious how the optimized -S3 and the upcoming -C6 do in the various transfer/power equations.