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Bumper Eyes: Visual Parking Aid

Bumper Eyes: Visual Parking Aid. Matthew Boddicker & Liz Risius Embedded Systems Final Project April 5, 2011. Components. ATMega88PA Microcontroller Maxbotix LV-EZ1 RS-232 Ultrasonic Range Finder BlinkM - I2C Controlled RGB LED. Bumper Eyes Visual Parking Aid.

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Bumper Eyes: Visual Parking Aid

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  1. Bumper Eyes: Visual Parking Aid Matthew Boddicker & Liz Risius Embedded Systems Final Project April 5, 2011

  2. Components • ATMega88PA Microcontroller • Maxbotix LV-EZ1 RS-232 Ultrasonic Range Finder • BlinkM - I2C Controlled RGB LED

  3. Bumper Eyes Visual Parking Aid • The ultrasonic sensor gives relative distance information. • LED color varies depending on object proximity. • BLUE= No objects within range • PURPLE= Object within range, use caution • RED = Object in close proximity, STOP! • The LED can be mounted in the vehicle's dash board.

  4. MAIN: INIT() WHILE(1) { DISTANCE(); FORMAT_DATA(); SET_COLOR(); } Flow Diagram RS-232/ADC I2C ULTRASONIC SENSOR PROGRAMMABLELED

  5. Schematic

  6. Application/Marketing • Cost: ~$50 + labor • Independent System • Small Size, Easily Portable • Popular Application, Large Market Audience • Sell standard as built-in vehicle component or stand-alone for consumer installation

  7. Unanticipated Fender Bender: Getting Back on the Road • RS-232 Nonfunctional on sensor : ASCII output was garbage • Wrote, but could not use USART, current USART driver untested • Resorted to Analog-to-Digital Converter

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