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Robert Rebich Brandon Aldecoa Anas Hussain. Sponsored by:. Team ThumbStart. New cars use keyless entry Bring bikes up with that trend Remove the need for keys, cards... etc. Biometrics are getting cheaper Fingerprints are the most reliable. Project Background.

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Robert rebich brandon aldecoa anas hussain l.jpg

Robert Rebich

Brandon Aldecoa

Anas Hussain

Sponsored by:

Team ThumbStart

Project background l.jpg

New cars use keyless entry

Bring bikes up with that trend

Remove the need for keys, cards... etc.

Biometrics are getting cheaper

Fingerprints are the most reliable

Project Background

Project definition l.jpg

Implement fingerprint scanner to be used for ignition of a motorcycle

Train multiple users


Ability to withstand road conditions


Project Definition

Project costs l.jpg
Project Costs motorcycle

  • Design Budget: ~$2000

  • Keep total system cost under $150

Various scanners l.jpg

Various Scanners

Sfm3010 fc l.jpg

Thermal Scanner motorcycle

3.3 V power input

Scanner operative range (-40 to 85⁰C)

Module operating range (0 to 70⁰C)

Store 1900 Unique Finger Prints


Atmel avr l.jpg

Currently working with ATmega48 motorcycle

AVR series very similar: code easily ported

Flexibility with memory, I/O, cost

Operating voltage range (2.7V – 5.5V)


Voltage regulation l.jpg
Voltage Regulation motorcycle

  • Possible options

    • Zener diode voltage regulation

    • Off the shelf regulator

    • LM2937IMP-3.3CT-ND

Communication l.jpg

  • Interfaces between AVR and scanner DSP motorcycle

    • Toggling GPIO pins (on DSP)

    • Serial communication

      • USART0

  • Commands

    • Send (AVR to DSP)

      • Enroll

      • Identify

      • Delete

    • Receive (DSP to AVR)

      • Succeed

      • Fail




Success, Failure

Enroll, Identify, Delete


Radio frequency ignition control l.jpg

  • Use RF motorcycle

    • Engage relay

    • Start the bike

  • Ease installation

    • Replace starter relay

    • Wirless: no problem because cable too short

  • Possible back up system

  • Downside: Cost

    • Linx modules cost $8 to $10 per receiver and $5 to $7 per transmitter

Radio Frequency Ignition Control

Back up systems l.jpg
Back-up Systems motorcycle

Training l.jpg

  • Unique code with every unit motorcycle

    • inputs code using the keypad

      • begin the enroll process

      • User capable of programming own unique code

  • User trained: system ready for use

  • New user: repeat enrolling


Packaging and positioning l.jpg

  • Early stage motorcycle

    • Decision about choice of AVR chip

      • Number of I/O ports

        • 11-13 I/O

      • Size of final program

      • Choose ATMEGA48

  • Placing

    • Under seat

    • Keypad over the rest of the electronics

      • Possibly removable

  • Packaged

    • Survive harsh environmental conditions

    • Easy to mount

    • Hidden scanner

    • Small size

Packaging and Positioning

Top view layout l.jpg
Top-view layout motorcycle

On going issues l.jpg

  • Length of the ribbon cable motorcycle

    • Currently Suprema only has a two inch cable

    • Would like to extend length to about 1ft

    • Suprema doesn’t have longer cable

    • Longer cable not recommend

    • Communication issues with extended length

  • Heat tolerance of Suprema DSP chip

    • Atmel AVR chips and scanner have industrial temp. ratings, Suprema DSP doesn’t

On Going Issues

Dmfea l.jpg
DMFEA motorcycle

Questions or comments l.jpg


Thank You