Question: How to get MQTT data to cache/persist/stay in place/stick around/not reset until it changes

[kevinkey619]

Is it possible to get the MQTT data to remain in memory/cache until it changes? I'm using this extension to read a barometer that's separate from my Acu-Rite 7-in-1 weather station. It seems that the pressure reading only remains in memory for a second or two and then disappears. I'm using an ESP32 board to feed the pressure data via MQTT. I've tried setting the code (on the ESP32) to output the data every half second, but then the board crashes.

[bellrichm]

I'm sorry, but there is no way to do this. If a downstream service needs to cache the values, it needs to provide that functionality.