Name: Power Bar
Rating: 3.4 (12 reviews)
Author: bjarnib

Displays a graphical gauge showing current (3s average) power against your power zones.   The current power zone is highlighted.  A separate gauge registers the maximum power registered during the activity. 

The data field supports the following settings through Garmin Express or the Garmin Mobile App:

* Suppress display of the field label (useful for smaller screens when multiple fields are displayed)

* Suppress display of the Max Power indicator

* The minimum value of the power scale display (adjusted to the nearest 50 watts)

* The maximum value of the power scale display  (adjusted to the nearest 50 watts)

* The averaging period for the displayed power value (1s/3s/10s/30s)

* The Functional Threshold Power (FTP) for the user

* Percentages of FTP for the user's power zones (z1-z7)

This field can be combined with other data fields on multi-field training pages.    Note that to make the display more readable on a smaller screen, the field does not display the numerical readout of the current power. To get the numerical readout, place the field with another separate Power field(s) on a multi field screen.

Also note that you need to set your FTP and zones in the settings for the app as the app can not access the FTP/zone data that you may have set on your device. This is currently a limitation in the Garmin Connect IQ framework.

An ANT+ power meter must be paired with the device to provide the power data. 

If you like this data field please consider leaving a review and / or a donation via https://goo.gl/CuOOWZ 

v1.1 Minor changes in layout to improve readability.
v1.2 Allows suppressing the display of the field label - useful if displayed in a multi field configuration on smaller screen such as the e520.   Allows adjusting the lower end of the displayed scale - useful when focusing on the upper zones such as when doing interval work.
v1.3 Allows selecting the averaging period for the power value, fixes problems modifying settings from Android phones in certain cases, updated color set for the zones (matches the Zwift workout color set).
v1.4 Added the possibility to suppress the display of the Max Power indicator.
v1.5 adds support for Edge 1030 and Forerunner 935
v1.6 adds support for Edge 530 and 830 
v1.7 adds support for the Edge 1040 and other recent devices.
v1.71 adds support for the Edge 540/840 
v2.0 Changes to display scale settings rounding to 50 watts instead of 100.  New devices added.  SDK update.
v2.01 Changes to display scale - upper value lower limit now 300w.
v2.1 Support for new devices
v2.2 Support for Edge 550/850/Fenix 8