Sorry for the possibly silly question, but I can’t seem to find a clear answer to this. When I pair my Kickr Snap with my Apple TV there are two boxes to choose from Power and Controllable. When I pick one, they both are selected, which had made sense to me as one would be my watts (right?) and the other is the bit that Zwift uses to let my trainer know that I am on a hill or what ERG mode should be doing in a workout. So for the sake of the Apple TV that counts as two signals, right?
I ask because I am still trying to find a way to get the Snap, my Duo Trap cadence, and a HRM to all play together nicely. So a total of 4 signals?
As mentioned in other threads, the Garmin Dual HRM has stopped working with the companion app and since my husband gave me Strava for Christmas, I really, really want to have heart rate data now and am hunting around for alternate solutions.