A heads-up display for cycling training that connects to a trainer over Bluetooth and displays power data over time.

The tool shows cumulative time spent in each training zone (based on your Functional Threshold Power), making it easy to see at a glance how much work you've done in different intensity zones during your workout.

Designed to be simple and uncluttered, this is meant to be used alongside another device (like a Garmin or other cycling app) that manages your full workout, while the power meter provides a focused display of cumulative work and zone distribution.

This was my first time working with Bluetooth data directly in the browser, and it was a fun challenge to get everything working smoothly.