LOGO Propeller Clock Member: Nguyễn Minh Đức Trần Quang Huy Bùi Hoàng Vượng Ngô Anh Vũ Trần Xuân Sáng CAPSTONE PROJECT Supervisor: Huỳnh Anh Dũng.

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Propeller ClockPropeller Clock

Member: Nguyễn Minh Đức Trần Quang Huy Bùi Hoàng Vượng Ngô Anh Vũ Trần Xuân Sáng

CAPSTONE PROJECT

Supervisor: Huỳnh Anh Dũng

Contents

Introduction1

Requirement2

Design and Implementation 33

Testing44

Conclusion and Demo5

Introduction

Supervisor: Mr. Huỳnh Anh Dũng

FDA Team

Student ID Name Roles

00347 Nguyễn Minh Đức Team leader

00463 Trần Quang Huy Hardware Designer, Tester

00718 Bùi Hoàng Vượng Developer, Tester

01157 Ngô Anh Vũ Developer, Tester

01215 Trần Xuân Sáng Technical Leader

Persistence of vision Phi phenomenon:

In the phi phenomenon, a sequence of images causes us a movement sensation

Introduction - Ideas

FDA Team

Beta movement

The LEDs, electronically, are individually controlled, but our eyes and brains perceive them as a snake running clockwise around the four edges of the square picture

Introduction - Ideas

FDA Team

Propeller Clock

Introduction - Ideas

FDA Team

Introduction - Management

Working hour: 5 hours/day/man

Online meeting: twice a week

Offline meeting: once a week

Penalty: absence and late arrive

www.themegallery.com

Company Logo

FDA Team

Introduction - Risks

ID Risk Description Probability Effect Status Action

1 Project Management skill:

Team leader lacks of actual project management skill

High Serious Occurred

Team leader prepares knowledge from text book and ask for advise from experienced PM

2 Hardware knowledge:

There might be problems with hardware design due to the lack of knowledge in this area

High Moderate Potential

Ask for support from our supervisor and experienced acquaintances.

FDA Team

Introduction - Risks

ID Risk Description Probability Effect Status Action

3 Human resource:

It’s hard to work together, as each team member has very different schedule.

Very high Serious Occured

Ask members to rearrange their schedules. After that find a time when everyone can work together

4 Human resource:

Some members still have to work at Fsoft, they could have to work over-time in the future

High Serious Potential

Add buffer time to the project plan.

Functional Requirement

Customized power supply unit can provide enough electricity to the whole system.

Rotate the circuit board by a motor at a speed of at least 1400 rounds per minute.

The system can turn on/off the LEDs properly, so that we can see the illusion of an analog clock with three hands: hour, minute, and second.

Display multiple colors (optional). Use RGB LED to create multi-color illusion.

The system can radomly switch its display way, user also switching manually using remote.

When the main power is cut, the system will use a small integrated pin to keep timing. When the main power is on, the system will display the right time.

FDA Team

Non-Functional Requirements

“Propeller Clock” system must display correct time over operating time. The different time must be less than 1 second after 24 hours of running.

When the “Propeller Clock” system operate, the noise should be small so that it will not disturb users.

The numbers and clock’s hands must be clear and easy to see. The hands of the propeller clock must have different size, so that we

can distinguish each one. The system can operate normally in a normal living environment

(study room).

FDA Team

Devices and Tools

Devices: µC: 16F877A Motor DC Power Supplier

Tools: PicKit 2 CCS C 4.114 Altium Designer 10

FDA Team

Software process model

FDA Team

 Iterative Development

Circuit Design - Schematic

Power Supply Schematic

FDA Team

Circuit Design - Schematic

Main Board Schematic

FDA Team

Circuit Design - Schematic

FDA Team

Circuit Design - Schematic

FDA Team

Testing

FDA Team

Demo

FDA Team

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