Robot ProjectRobot Project12.14.0412.14.04

Group SevenGroup Seven

Zac LovatoZac LovatoDavid ThompsonDavid Thompson

Doug YarholarDoug YarholarShang-Chih, TsaiShang-Chih, Tsai

Daryn , WuDaryn , Wu

ExperimentationExperimentation

We spent a lot of time in the lab experimenting We spent a lot of time in the lab experimenting with the light sensitivity to the sensors.with the light sensitivity to the sensors.

We started with a low sensitivity and work our We started with a low sensitivity and work our way up to a good sensitivity.way up to a good sensitivity.

We tinkered with the width between the light We tinkered with the width between the light sensors and found that very close sensors were sensors and found that very close sensors were able to make tighter turns and wider spacing able to make tighter turns and wider spacing made for faster times in the straight-aways.made for faster times in the straight-aways.

Design ChangesDesign Changes

Our initial design for the car is very much Our initial design for the car is very much the same as our test car.the same as our test car.

We did changed from the front support We did changed from the front support design of “ The Nub ” to our final front design of “ The Nub ” to our final front support design of “ The Ski’s.” support design of “ The Ski’s.”

Final DesignFinal Design

Large diameter wheels and tiresLarge diameter wheels and tiresFront ski’s as supportsFront ski’s as supportsAbout two inches between the light About two inches between the light

sensorssensorsDual tire carrier on back for tractionDual tire carrier on back for traction

Light SensitivityLight Sensitivity

We made three different programs based We made three different programs based on changing the light sensitivity of the light on changing the light sensitivity of the light sensors.sensors.

For black, blue and green we used 45% For black, blue and green we used 45% sensitivity.sensitivity.

Red worked best with a 47% sensitivityRed worked best with a 47% sensitivityFor yellow, we reversed the signs and set For yellow, we reversed the signs and set

the sensitivity at 53%.the sensitivity at 53%.

ProgramProgram

45 45

Design ProblemsDesign Problems

We had to little traction to the back wheels We had to little traction to the back wheels so we decided to add a dual spare-tire so we decided to add a dual spare-tire carrier to had weight to the rear wheels.carrier to had weight to the rear wheels.

ConclusionsConclusions

Our robot attained third place in the robot Our robot attained third place in the robot showdown.showdown.

Looking at the results we realized that it Looking at the results we realized that it would have performed better in small would have performed better in small angle turns if we had reversed one motor angle turns if we had reversed one motor (depending on the side of the turn).(depending on the side of the turn).

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PlacePlace