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Published byTracey Blair Modified over 9 years ago
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Team Beefcake
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Team Members Dr. Ray Winton Faculty Advisor Anthony Piro Software Design Web Page Design Todd Stringer Hardware Design Testing
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Multiple Repetition Maximum Approximates Strength Safer than Performing One Repetition Maximum Used to derive weightlifting workout intensity
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Target Heart Rate Determines fitness level Used to Derive aerobic workout intensity
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Body Fat Percentage Measures Muscle Mass Used to determine effectiveness of exercise routines
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Overall Requirements User Friendly Accurate Calculations Economical Handheld Robust
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Microcontroller Standard size keypad LCD display with interactive menus Technical Requirements
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On Func? Initialization Gender? Obtain Input Male FormulaFemale FormulaDisplay Maximum Display Target Heart Rate Display Body Fat Percentage Calculations Multiple Repetition Maximum Target Heart Rate Body Fat Percentage Software
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Input / Output Devices
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A)MRM B)THR C)BFP Weight? XXXX A) Male B) Female Age? XX Chest? XX Superailiac? XX Subscapular? XX Triceps? XX Thigh? XX Abdomen? XX Axilla? XX % Body Fat: XX.X Repetitions? XX 1 Rep Max: XXXX Age? XX Target HR: XXX-XXX Resting HR? XX Body Fat Percentage Multiple Rep Maximum Target Heart Rate 12 X 2 LCD Display Interface
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Hardware Testing & Development
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The LCD Connections
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LCD Problems Rabbit port voltages? Rabbit Software? LCD component? Incorrect Logic?
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Eliminate possible logic errors. Use equipment that is trusted to work. PC Parallel port. Minimize connections to the tested piece. Test all connections to the tested piece. If possible, use software which is known to work. LCD Test Plan
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LCD Test Schematic
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The Keypad
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Rows connected to logic high on port D. Columns connected to logic low on port B. Rows and Columns were connected via 10k current limiting resistor. Rows were tied to ground. Columns were tied to Vcc. The Keypad Connections
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Timeline February 15, 2002 – Complete Research on Changes for Final Product March 1, 2002 – New Parts Ordered March 15, 2002 – PCB, Other Hardware & Software Changes Designed April 15, 2002 – Final Product Built May 1, 2002 – Testing Completed
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