Reddit reviews Schwinn A10 Upright Exercise Bike (2011)
We found 1 Reddit comments about Schwinn A10 Upright Exercise Bike (2011). Here are the top ones, ranked by their Reddit score.
Upright exercise bike with eddy current resistance systemFeatures 8 resistance levels and 7 workout programsLCD console tracks your speed, time, distance, calories, and moreGrip heart rate monitor; adjustable T-knob handlebars275-pound capacity; measures 28 by 17 by 48 inches (L x W x H)
Most likely the actual sensor on the flywheel is just counting revolutions the same way a normal bike computer does. The speed, etc, just comes from a simple calculation in the console.
For example, if you could figure out how to read what's coming from that cable it's probably just a series of "clicks" (ie. one bit of data for every revolution of the pedals). All you have to do then is figure out what one revolution of the pedals equals in distance (on a normal bike computer you do this simply by entering the diameter of the wheel the sensor is attached to, no idea how you would do it on a stationary bike).
Once you know that you'd have to find/build a piece of software for your laptop that would be able to do the same calculations to give you speed/distance/calories-burned (although that's a total scam IMO)/etc.
Good luck!
EDIT: I just looked at the pics after I wrote that and have one other thing to add. I have a similar exercise bike and the resistance is adjusted digitally through the same cable (it's a ribbon cable though, not a single cable like yours). If that extra data is going through that same 3.5mm jack then the data-stream is going to be more than just a revolutions count. It's probably some kind of proprietary data stream that gets encoded/decoded by a small IC somewhere inside the bike itself. You could probably still interpret it, but you'd have to record the signal coming out and find a way to kind of reverse engineer it to see the raw data, then figure out what calculations are done with that data to give you a read-out, etc, etc. Honestly, it's probably going to be a lot more time consuming than it's worth. If you do decide to pursue it good luck!