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Robert Rebich Brandon Aldecoa Anas Hussain Sponsored by:

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1 Robert Rebich Brandon Aldecoa Anas Hussain Sponsored by:

2  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

3  Implement fingerprint scanner to be used for ignition of a motorcycle  Train multiple users  Reliability  Ability to withstand road conditions  Security

4  Design Budget: ~$2000  Keep total system cost under $150

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8  Stand alone scanner vs. embedded scanner  Various types  Optical  Thermal  Capacitive  Electric field

9  Thermal Scanner  3.3 V power input  Scanner operative range (-40 to 85 ⁰ C)  Module operating range (0 to 70 ⁰ C)  Store 1900 Unique Finger Prints

10  Currently working with ATmega48  AVR series very similar: code easily ported  Flexibility with memory, I/O, cost  Operating voltage range (2.7V – 5.5V)

11 12V DC from battery3.3 V for scanner and AVR  Possible options  Zener diode voltage regulation  Off the shelf regulator  LM2937IMP-3.3CT-ND

12  Interfaces between AVR and scanner DSP  Toggling GPIO pins (on DSP)  Serial communication  USART0  Commands  Send (AVR to DSP)  Enroll  Identify  Delete  Receive (DSP to AVR)  Succeed  Fail Suprema DSP Suprema DSP ATMEL AVR Enroll, Identify, Delete Success, Failure

13  Use RF  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

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15  Unique code with every unit  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

16  Early stage  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

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18  Length of the ribbon cable  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

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20 QUESTIONS OR COMMENTS?


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