ElPrimero

Classic Zenith analog watchface with anti-aliasing, always-on second hand and powersafe mode.

Connect IQ Store link

• Nice design
• Battery level and heart rate display
• UTC timezone and device state icons
• Move meter
• Steps counter
• Active minutes counter
• Current date display
• Auto power safe mode

Photo	Blue	Black	Powersafe

FAQ

1. I have a question or a problem

   Feel free to "Contact developer" or open an issue at "source code".

2. How to uninstall

   • Select another current watchface in "watchfaces"
   • Uninstall watchface from Garmin Connect mobile app

3. What about adding more functions

   90/92Kb of device memory is used to draw smooth anti-aliased clock design, so I don't think there is enough room for any new idea. But feel free to make a PR.

Powersafe mode

There are 3 operating modes for this watchface:

• Active mode (10 seconds after "what's time" gesture)
  • Current heart rate is shown
  • Second hand is updated in 2Hz
• Background mode
  • Second hand is updated in 1Hz
  • All data is updated once a minute, differences are re-drawn to screen buffer
• Powersafe mode (activated at specific conditions)
  • Second hand is not shown
  • Minute hand is drawn once a minute, everything else is drawn to screen buffer
  • When hour hand moves (once in 12 minutes), all data is updated, differences are re-drawn in screen buffer
  • Anti-aliased custom-font hour and minute hands are replaced with vector hands

Powersafe mode is activated in a minute after entering background mode, if:

• Do-not-disturb mode is on (usually it is activated in sleep mode)
• Move bar is full (if you are too busy to make some steps, you don't look at watch)
• Heart rate data is missing (watches are not on your hand)
• Heart rate is less than 1.2x of resting heart rate (you are actually sleeping)

Technical details

Generating tiles for hands

./tiler.py --name hour_sides   --tile=24x24 --texture=96x96 elp_hour_sides.png
./tiler.py --name minute_sides --tile=32x32 --texture=160x160 elp_minute_sides.png 
./tiler.py --name gauge_sides  --tile=32x32  gauge_hand_sides.png 

Prepare production release

1. version in properties.xml and strings.xml
2. update version in manifest.xml
3. build release file

~/opt/ConnectIQ/bin/monkeyc -e -o out/ElPrimero-1.6.0.iq -p ~/opt/ConnectIQ/bin/projectInfo.xml -r -f monkey.jungle -y ~/.ssh/connect_iq.der 

Unsupported devices

• Approach S60 - no HRM
• D2 family - JSON resources not supported
• Descent MK1 no byte arrays support
• Edge family - bike devices
• Fenix 3 family - JSON resources not supported
• Fenix 6X Pro - 280x280 screen size is too large for resources initially used with 218x218 devices
• Fenix Chronos - Not enough screen color depth - image is distorted
• Forerunner 230/235/630/735/920 - not round displays
• GPSMAP, Oregin, Rino families - navigator devices
• Swim 2 - JSON resources not supported
• Venu - AMOLED display which has limitations on pixel-on duration and second hand periodic updates
• Vivoactive - Rectanble screen
• Vivoactive HR - Byte arrays not supported by device