Not only does the C2 has an USB interface, but recent models have Bluetooth as well...! (I'm a happy C2 owner)
I found an example project some time ago of a web site using Chrome's Bluetooth JavaScript API to recreate a rowing monitor and filed it away in case I would ever get to that side project :-)
In case someone's interested to collab: I would build a 3D world through which you row. I know apps/games like these exist but an open version would be great (also the ones I found seemed to have so-so 3d graphics). And compatibility with VR headsets too..!
Just to add to this: an Apple TV-compatible, 3D rowing app would be supremely interesting to consider...
I found an example project some time ago of a web site using Chrome's Bluetooth JavaScript API to recreate a rowing monitor and filed it away in case I would ever get to that side project :-)
In case someone's interested to collab: I would build a 3D world through which you row. I know apps/games like these exist but an open version would be great (also the ones I found seemed to have so-so 3d graphics). And compatibility with VR headsets too..!
Just to add to this: an Apple TV-compatible, 3D rowing app would be supremely interesting to consider...
Building a web-based C2 monitor via Bluetooth: https://bandarra.me/2017/02/20/Fitness-Tracking-with-Web-Blu...
Interacting with Bluetooth over JS: https://web.dev/bluetooth/
The Bluetooth communications spec from C2! https://www.concept2.co.uk/files/pdf/us/monitors/PM5_Bluetoo...