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Week 5, Final Project Planning

Start putting together a plan for your final project. Given the chapter, the main goal is to put together state machine documentation. This can be a flowchart or (preferably) a state table. You may also need to create the diagrams from Lesson 2 to flesh out the design. Note: this design planning, thinking through the system, what you have and what you need. Keep in mind that these will not be the final version!

High-level Description

This final project is a Pomodoro timer. It consists of a triangular-shaped digital desktop timer that has some allowances for using the pomodoro technique. The timer is orientation sensitive, allowing you to select a duration. Using the accelerometer, the timer knows if you've selected a Pomodoro (25 minutes), a short break (5 minutes), or a long break (15 minutes). These correspond to the chunks of time used by the technique.

The technique, briefly:

  1. Start a 25 minute timer. During this time focus entirely on the task at hand. Postpone any interruptions until the timer has expired.
  2. Take a short, 5 minute break.
  3. Repeat 1 & 2 three more times.
  4. After the fourth pomodoro, take a longer break (15 minutes).
  5. Repeat 1 through 4 as needed to accomplish your tasks.

The timer will keep track of the total number of pomodoros that you've accomplished. There is a reset button to clear the accumulated count of pomodoros. Good work today!

Technical Details

Features/techniques used:

  • LCD matrix display
  • Custom graphics
  • PWM buzzer
  • Accelerometer
  • System timers

Architecture Diagrams

TODO

State Diagram

State Table

State Event Next State var: pomodoros
START (NONE) SHOW_STATS pomodoros = 0
SHOW_STATS orientation: pomodoro TIMING_POMODORO
SHOW_STATS orientation: short break TIMING_SHORT_BREAK
SHOW_STATS orientation: long break TIMING_LONG_BREAK
TIMING_POMODORO timeout (25 min) SHOW_STATS pomodoros++
TIMING_SHORT_BREAK timeout (5 min) SHOW_STATS
TIMING_LONG_BREAK timeout (15 min) SHOW_STATS
TIMING_LONG_BREAK timeout (15 min) SHOW_STATS
(ANY) reset button SHOW_STATS pomodoros = 0