How to show a slider in home assistant freom an mqtt topic

Hi, I do have a wallbox to charge my electric car. This wallbox allows the user to change the current that is charging the car setting an mqtt topic
the payload is the amount of current you wish to charge your car (3 for 3 Ampere, 4 for 4 Ampere and so on)

I wish to present this in Lovelace like with a number
number.car_charge_limit or
like the volume of a media_player