Line Following RC Car The line following RC car provides a model for the potential implementation of unassisted steering in full sized automotives.

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Presentation transcript:

Line Following RC Car The line following RC car provides a model for the potential implementation of unassisted steering in full sized automotives.

Design Microcontroller simultaneously polls a set of photoresistors to determine path. Photoresistors in parallel to a resistance create potentiometers to sense light intensities. DC motors provide steering and rear wheel drive for the car.

Arduino Pin Layout Digital – Pin 3: to H-bridge2 leg 1 – Pin 4: to H-bridge2 leg 2 – Pin 5: to H-bridge1 leg 1 – Pin 6: to H-bridge1 leg 2 – Pin 7: to sensor LEDs – Pin 9: to H-bridge2 enable – Pin 10: to H-bridge1 enable – Pin 11: to left headlamp – Pin 12: to right headlamp Analog – Pin 0: to left potentiometer – Pin 1: to middle potentiometer – Pin 2: to right potentiometer

H-Bridge Circuit

Sensor Array

Part Number/NameUnit Cost Number of UnitsTotal Cost Arduino$ RC Car$ Breadboard$ Photoresistor (5 pack) $2.991 LED$1.493$4.47 Resistors$0.017$0.07 H-Bridge Motor Driver 1A$2.352$4.70 TIP120 NPN-D Transistor $1.591 Wire$5.491 PC Board$1.991 PCB Standoff Screws$ V Battery Connector $ V Battery$3.991 AA Battery (4 pack)$3.991 $105.16