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DigiChron bobhwasatch

DigiChron

Description

DigiChron is a Pebble app that is intended to operate similarly to a Casio digital watch. A Casio GWM5610 G-Shock was used as my model. The app has a passing resemblence to the Casio, but the main idea is to operate as a real digital watch does and to provide a similar feature set.

This is a watchapp, not a watchface, because it needs to have interaction in order to set timers, operate the stopwatch, etc. As such it would normally exit if the user clicks the back button. I have overridden that behavior to make it less likely that the user exits by accident. To exit the app, the user must long-click the back button.

General Features:

- Open source under the MIT license.
- Multiple functions available by clicking the DOWN button.
- All functions can be used at the same time. No blocking.
- Shows watch battery percentage and charging state on status bar.
- Shows bluetooth connectivity on status bar.
- Vibrates on bluetooth connectivity changes.
- Does not require the phone to function, other than to install.
- Supports both white-on-black and black-on-white display modes.

Main Features:

- Shows time, day or date, and seconds.
- Obeys the 12/24H setting in the Pebble settings.

Timer Features:

- Two independent countdown timers, maximum time 24 hours.
- Pressing any key turns off active alarms even if the user is not
on the timer screen.
- Timers remember their settings on app exit and resume on restart.
- Hold UP and DOWN buttons to increment or decrement faster.

Stopwatch Features:

- Stopwatch with lap and split times, maximum time 100 hours.
- Stopwatch updates 5x per second, displays to 1/10 while running,
but captures time to 1/100 when the stop button is clicked.
- To save battery, the stopwatch update slows to 1x per second after five
minutes, but still maintains full accuracy in the background.
- Stopwatch will continue after exiting and restarting the app.

Button Mappings:

All Faces:
BACK Clear alarms that are currently active.
DBL-BACK Invert display colors.
LONG-BACK Exit the app.
DOWN Next function.

Main Face:
SELECT Change between date and day display.

Timer Faces:
SELECT Start and stop the timer. In setting mode
switch between hours, minutes, and seconds.
LONG-SELECT Enter or exit setting mode.
UP Increment the time in setting mode.
DOWN Decrement the time in setting mode.

Stopwatch Face:
SELECT Start, pause, and continue the timing.
LONG-SELECT Reset the stopwatch.
UP Capture split & lap times and then switch between
them. When the timing has been paused with
SELECT, switch between split and lap display.

Future Features:

These are some features that I would like to add. I have tried to architect the code to make it as easy as possible to add them.

- Alarm function.
- Second time zone function.
- Multiple lap times in the stopwatch.
- Alternate look & feel, such as an analog display version.