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Vehicle LED Display

Skylar StromanKaitlin Fish-Stuhl

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Project Overview

P h o n e (A n d ro id A p p lica t io n )

B lu e to o th R ece iv e r M o d u le

M ic ro p ro cesso r L E D D riv e r

L E D D isp la y (O u tp u t)

D is tan ce S en so r

W ire le ss

P C B

B a tte ry C ar O u tle t P o w er

B a tte ry

W ire le ss

X B E E T ran sm itte r

X B E E R e ce iv e r

P C B

Overview

LED Matrix display for back window of car

Will interface with Android phone via Bluetooth, using voicerecognition and a user interface for easy update of the display

Distance sensor to automatically display user-definedmessage when following driver gets too close

Rechargeable by car outlet

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Current Work

• Researching

• Buying parts

• Finalizing ideas

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Technical Considerations

Bluetooth receiver will receive signal from phone Microprocessor will interpret and send message to LED

driver LED driver will output the message to the display

Distance sensor will communicate with microprocessor through XBEE transceivers

Microprocessor will interpret information and cause the LED driver to send user-defined message to LED display when someone drives too closely behind the customer's vehicle

Writing effective Android application with user-friendly interface

Making use of phone's voice recognition

Configuring Bluetooth communication between phone and microprocessor

Making distance sensor work effectively with displaying message at the proper time – i.e. not display rude canned message if someone pulls up close while stopped at a traffic light

– Possible solution: Use phone GPS to have message only display while the car is moving

Technical Challenges