PM5 Recorder

PM5 Recorder connects to a Concept2 PM5 monitor — over Bluetooth (wireless) or USB — and records the session, with two exports:

• Export CSV (Concept2 Logbook) — the reduced fields, sampled once a second, in the format Concept2's own Logbook accepts.
• Export Events (JSON) — every raw message the monitor emitted, verbatim, for higher-fidelity playback than the CSV format's fixed columns allow.

Requirements

• Bluetooth: a Web Bluetooth browser (Chrome/Edge on desktop) and the PM5's wireless turned on.
• USB: Chrome or Edge (Web HID is not supported in Firefox or Safari) with the PM5 connected by USB.

Usage

• Pick Bluetooth or USB, click Connect, and pick the PM5 from the browser's device picker.
• Row, ski, or bike. The canonical stats update live, and every raw metric the monitor reports appears below as its own card.
• Click Export CSV or Export Events once a session has recorded anything.

Mock

Pick Mock to try it without hardware. Choose a replay speed, optionally upload a previously recorded workout (a Concept2 Logbook .csv export, or one of this app's own .json Export Events files), and click Connect. Leave the file picker empty to replay a bundled demo workout instead.

Source on GitHub.