Team

Beefcake

Team Members

Dr. Ray Winton Faculty Advisor

Anthony Piro Software Design Web Page Design

Todd Stringer Hardware Design Testing

Multiple Repetition Maximum

Approximates Strength

Safer than Performing One Repetition Maximum

Used to derive weightlifting workout intensity

Target Heart Rate

Determines fitness level

Used to Derive aerobic workout intensity

Body Fat Percentage

Measures Muscle Mass

Used to determine effectiveness of exercise routines

Overall Requirements

User Friendly Accurate

Calculations Economical Handheld Robust

•Microcontroller

•Standard size keypad

•LCD display with interactive menus

Technical Requirements

On

Func?

Initialization

Gender?

Obtain InputObtain Input Obtain Input

Male Formula Female FormulaDisplay Maximum

Display Target Heart Rate

Display Body Fat Percentage

Calculations Calculations

Calculations

Multiple Repetition Maximum Target Heart RateBody Fat Percentage

Software

Input / Output Devices

A)MRM B)THRC)BFP

Weight?XXXX

A) MaleB) 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 RepMaximum

Target Heart Rate

12 X 2 LCD Display Interface

Hardware Testing & Development

The LCD Connections

LCD Problems

•Rabbit port voltages?

•Rabbit Software?

•LCD component?

•Incorrect Logic?

•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

LCD Test Schematic

The Keypad

•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

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