I am designing a unit where I need to monitor air pressure from 0-1 bar. This information will be fed to a micro controller. The ideal input to the micro, is a variable resistance and whilst this type of transducer is available for temperature, light etc. I can't find one for pressure. Not only are the available pressure transducers expensive and output to a Wheatstone Bridge, they require additional circuitry for input into a micro. Any help is appreciated.

Does anyone know if a car oil pressure sender is resistive?