An inflation system is disclosed for automobile tires, bicycle tires, and other inflatable articles, wherein the inflating pump reads information from a microchip associated with the valve stem in the inflatable article, in order to inflate the tire or other inflatable article to the correct pressure. In one embodiment, the microchip contains one pressure level which the inflating pump reads and fills the inflatable article to. In another embodiment, the microchip contains several different pressure levels--based on different conditions--which the inflating pump reads, and the pump fills the inflatable article to the particular pressure level selected by the user.