Barome tric Altimeter

摘要

In this project a piezoresistive transducer measures the atmospheric pressure, enabling a PIC microcontroller to use the ISA model (with temperature compensation) to display your current height above sea level (ASL) on an LCD.rnWhereas office managers typically associate 'height' with promotion, career building and a desk on the top floor, everyone else with a healthier mind will be looking up towards the skies, down into chasms or valleys, or for a safe place to land. When mountaineering, climbing, para-sailing, hang-gliding or flying ULs (ultralights), it's plain essential to know your 'ASL': height above sea level.