A small python tool to export your (Vivosmart HR) heart rate data as json-File and FIT-File from the Garmin Connect page. Code base from: https://github.com/kjkjava/garmin-connect-export
Attention: To be able to work, this program needs at least one activity stored in Garmin Connect. This is because it extracts the username from an activity.
A small python tool to visualize your heart rate over a certain time period. Just as an example.
Hope it helps someone ;-)