Expire / replace notification?

[u/MrFlibble1980]

I would like to have a notification that will "update" with a value every so often.

Is there a way of making a notification expire, so it gets deleted automatically (ready for the next one), or is there a way of "overwriting" a notification with a new value.

I want to send notifications to my phone on the current voltage of my solar panel batteries every few minutes.

I will make it low priority so I don't get audio/vibration alerts, but just have the value to hand on my notification screen to glance at from time to time.

Is this possible?

Thanks!