Name: Smart Bike Lights
Rating: 4.5 (176 reviews)
Author: maca88

For support you can either use the "Contact developer" (please provide the email address so that I can reply back) or by posting on the Garmin forum thread:
https://forums.garmin.com/developer/connect-iq/f/showcase/248492/smart-bike-lights-data-field-bike-lights-control-widget

Smart Bike Lights is a data field IQ Connect application for Garmin devices, that displays and controls ANT+ lights. Garmin has a built-in "Auto" light mode setting, which automatically adjusts the light intensity based on the ambient light or time of day. The issue with "Auto" mode is that is not configurable and that is why this application introduces a special "Smart" mode, which is fully configurable based on sunset, sunrise, speed, ... (check all filters below). The source code is available on GitHub: https://github.com/maca88/SmartBikeLights, where issues/feature requests can be opened.

How to use

1. Download the data field application from Garmin Connect Store and synchronize your Garmin device
2. Pair your bike lights with your Garmin device (https://www8.garmin.com/manuals/webhelp/variaut/EN-US/GUID-C4BB544A-78FA-4B3E-9061-2371B7B3C558.html)
3. On your Garmin device set "Light Beam Activated" setting to "Timer Start" in "Menu" - "Sensors" - "Lights" - "Network Options" (optional step. Ignore this step if such setting does not exist on your device)
4. Configure your paired lights with the Lights Configurator https://maca88.github.io/SmartBikeLights/ (In case your light is not on the list, check below)
5. Copy the final configuration value from Lights Configurator into the application setting: "Lights Configuration" by using Garmin Connect Mobile or Garmin Express
6. Select the data screen where you want put the data field
7. On the chosen field select "Connect IQ" - "Smart Bike Lights"

Control modes

Smart (S): Light is controlled by the filters defined with Lights Configurator
Network (N): Light is controlled by the Garmin Light mode (Auto/Individual/High Visibility)
Manual (M): Light is controlled by the user

Check GitHub page for how to switch between control modes.

Settings

- Activity color: Used to define the color of the separator line in case two lights are connected and the color of the light panel buttons
- Record lights mode: Whether to record connected lights modes that will be displayed in Garmin Connect
- Lights Configuration: The configuration value generated by the Lights Configurator
- Control mode only: Whether only control mode can be changed when tapping on the light icon (only for Edge devices with touch screen)

Currently registered ANT+ lights:
- Bontrager Ion Pro RT
- Bontrager Ion 200 RT
- Bontrager Flare RT
- Garmin Varia RTL500
- Garmin Varia RTL510
- Garmin Varia RTL511
- Garmin Varia RTL515
- Garmin Varia RTL516
- Garmin Varia eRTL615
- Garmin Varia RCT715
- Garmin Varia HL500
- Garmin Varia UT800
- Cycliq Fly12 CE (supported only by using Individual Light Network)
- Cycliq Fly6 CE (supported only by using Individual Light Network)
- See.Sense BEAM/BEAM+ (supported only by using Individual Light Network)
- See.Sense ICON2 (supported only by using Individual Light Network)

NOTE: Check the following post whether your light is not on the list: https://forums.garmin.com/developer/connect-iq/f/showcase/248492/data-field-smart-bike-lights

Filters
- Sunrise
- Sunset
- Time of day
- Acceleration
- Speed
- Light battery state
- GPS accuracy
- Timer state
- Start location
- Position (only for devices with more that 32KB memory)
- Bike radar (only for devices with CIQ 3.0+. For devices with 32KB memory, the filter is available only when one light is paired)
- Profile name (only for devices with CIQ 3.2+ that support multiple profiles)
- Gradient (only for devices with more that 32KB memory that have a barometer)
- Solar intensity (only for solar devices with more than 32KB memory)

Error codes:
Check GitHub page for error codes.