garmin-morse-time
Garmin Morse Time
A minimalist, elegant, nerdy Garmin Connect IQ watch face that displays the current time with Morse digits.
Available from Garmin Connect IQ Developer portal.
Note
Morse Time is part of a collection of unconventional Garmin watch faces. It has been developed for fun, as a proof of concept, and as a learning experience. It is shared as is as an open source project, with no commitment to long term maintenance and further feature development.Please use issues to provide bug reports or feature requests.
Please use discussions for any other comments.All feedback is wholeheartedly welcome.
Contents
Morse digits
The Morse code represents the digits 0-9 with five dot or dash symbols each. The table below shows the complete encoding.
| Decimal digit | Morse code |
|---|---|
| 0 | ----- |
| 1 | .---- |
| 2 | ..--- |
| 3 | ...-- |
| 4 | ....- |
| 5 | ..... |
| 6 | -.... |
| 7 | --... |
| 8 | ---.. |
| 9 | ----. |
Features
The Morse Time watch face supports the following features:
| Screenshot | Description |
|---|---|
 |
Morse time The current time is displayed as Morse digits, in four rows: Two top rows in white font show the two hour digits (including zero, when hour < 10), the bottom two rows in ornge font show the minute digits. |
 |
Standard time A setting in the Customize menu enables the user to toggle the standard time display on and off. The standard time is shown below the Morse time in smaller, dimmer font. |
Fonts
The Morse Time watch face uses custom fonts:
The development of Garmin watch faces motivated the implementation of two useful tools:
- A TTF to FNT+PNG converter (
ttf2bmp).
Garmin watches use non-scalable fixed-size bitmap fonts, and cannot handle variable size True Type fonts directly.- An font scaler automation tool (
garmin-font-scaler).
Garmin watches come in a variety of shapes and resolutions, and bitmap fonts need to be scaled for each device proportionally to its resolution.
The font development proceeded as follows:
- The fonts were downloaded from Google Fonts as True Type (
.ttf) fonts. - The fonts were converted to bitmaps as
.fntand.pngpairs using the open source command-linettf2bmpconverter. - The font sizes were established to match the Garmin Fenix 7X Solar watch 280x280 pixel screen resolution.
- The fonts were then scaled proportionally to match other screen sizes available on Garmin watches using the
garmin-font-scalertool.
The table below lists all font sizes provided for the supported screen resolutions.
| Resolution | Shape | Element | Font | Size |
|---|---|---|---|---|
| 148 x 205 | rectangle | Morse time | SyneMono regular | 37 |
| 148 x 205 | rectangle | Standard time | Ubuntu regular | 16 |
| 176 x 176 | semi-octagon | Morse time | SyneMono regular | 44 |
| 176 x 176 | semi-octagon | Standard time | Ubuntu regular | 19 |
| 215 x 180 | semi-round | Morse time | SyneMono regular | 45 |
| 215 x 180 | semi-round | Standard time | Ubuntu regular | 19 |
| 218 x 218 | round | Morse time | SyneMono regular | 54 |
| 218 x 218 | round | Standard time | Ubuntu regular | 23 |
| 240 x 240 | round | Morse time | SyneMono regular | 60 |
| 240 x 240 | rectangle | Morse time | SyneMono regular | 60 |
| 240 x 240 | round | Standard time | Ubuntu regular | 26 |
| 240 x 240 | rectangle | Standard time | Ubuntu regular | 26 |
| 260 x 260 | round | Morse time | SyneMono regular | 65 |
| 260 x 260 | round | Standard time | Ubuntu regular | 28 |
| 280 x 280 | round | Morse time | SyneMono regular | 70 |
| 280 x 280 | round | Standard time | Ubuntu regular | 30 |
| 320 x 360 | rectangle | Morse time | SyneMono regular | 80 |
| 320 x 360 | rectangle | Standard time | Ubuntu regular | 34 |
| 360 x 360 | round | Morse time | SyneMono regular | 90 |
| 360 x 360 | round | Standard time | Ubuntu regular | 39 |
| 390 x 390 | round | Morse time | SyneMono regular | 98 |
| 390 x 390 | round | Standard time | Ubuntu regular | 42 |
| 416 x 416 | round | Morse time | SyneMono regular | 104 |
| 416 x 416 | round | Standard time | Ubuntu regular | 45 |
| 454 x 454 | round | Morse time | SyneMono regular | 114 |
| 454 x 454 | round | Standard time | Ubuntu regular | 49 |
Build, test, deploy
To modify and build the sources, you need to have installed:
Consult Monkey C Visual Studio Code Extension for how to execute commands such as build and test to the Monkey C runtime.
You can use the included Makefile to conveniently trigger some of the actions from the command line.
# build binaries from sources
make build
# run unit tests -- note: requires the simulator to be running
make test
# run the simulation
make run
# clean up the project directory
make clean
Note
To successfully execute the test and run targets, you need to start the simulator first.
Consult developer.garmin.com/connect-iq/connect-iq-basics/your-first-app for details.
To sideload your application to your Garmin watch, see developer.garmin.com/connect-iq/connect-iq-basics/your-first-app.