Basketball

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Team Members

Team Members from right to left: John, Alex, and Meredith
  • John Rula (Mechanical Engineering, Class of 2009)
  • Alex Wojcicki (Mechanical Engineering, Class of 2009)
  • Meredith Chow (Electrical Engineering, Class of 2010)













Introduction

A throwing arm propelled by a Pittman motor is mounted on a turntable and throws the ball into the "hoop." The hoop is wrapped in reflective tape and an IR emitter, receiver pair is used to sense where the IR is reflected most (the hoop with highly reflective tape). An ultrasonic sensor then pings the hoop for the distance of the hoop. With this information, the arm is able to "make a basket."

Mechanical Design

Components

PartPart No.QtyVendorPrice (Total)
Pittman Motor GM87121Lab-
RC Servo Motor - Futaba S30041Lab-
Acrylic .25" Thick, 12"X 12"8560K3541McMaster$12.54
Acrylic .25" Thick, 24"X 24"8560K3571McMaster$39.63
Corrosion-Resistant Turntable6031K171McMaster$2.42
Fasteners-~20Shop supply-


Drawings

Electrical Design

Components

PartPart No.QtyVendorPrice (Total)
PICsPIC18F46203Lab-
EncoderLS70831Lab-
H-BridgeL298N1Lab-
Ping Ultrasonic Sensor280151Lab 5 supply-
IR EmitterQED1231Lab-
IR PhototransistorLTR-4206E1Lab-
Diodes1N41484Lab-
Resistors47.5/150K2Lab-


Circuit Diagram

Code

Results

Reflection