This application describes a compressed air tire inflation system using the MSP430F1121 MCU. The system is able to read the pressure of a tire and control compressed air in such a manner that the user is able to select the desired inflation pressure. Some of the technologies utilized in this application are: MSP430 RISC MCU, LCD display, Staco 1X4 keypad, piezo beeper, Clippard low voltage solenoid, pressure sensor, and power management for battery operation.

Block Diagram

Kirt Weakman
Michigan, USA
kirt_w_weakman@email.whirlpool.com

FIRST PLACE: Tiny Guidance Engine
SECOND PLACE: Automatic Blood Pressure Meter • Tennis Computer
THIRD PLACE: Sophocles • Wireless Weather Station with Voice Synthesis • ISM-IrDA Repeater
Honorable Mentions: Vessel Microcomputer Network • Universal Meter • Intelligent Tire Inflator • The SEAL • Card Access Control Project • TeHuMet—Temperature-Humidity Meter • The PDA²-430 (Programmable Digital to Analog Assistant with MSP-430) • GSM Interface Module • Trail Counter Sensor System • Portable MP3 Player