I bought my Waylens Horizon to simplify recording track laps, since I used to use an app + external GPS + bluetooth OBD-II scanner, which is all built into one system in Waylens.
However, having used it several times now at the track, and missing most of the footage I’d like to have, I’m giving up on it.
The reason is that if you put it in track mode, it’s supposed to trigger and start recording when you pass the start/finish line. It won’t start recording at all until you’ve crossed the line for the first time, but the problem is that it fails to notice that you’ve crossed it about 2/3 of the laps. Sometimes, I’ll be doing laps for 15+ minutes before it realizes that I’m lapping.
I think it’s due to a bug with how the camera computes whether it’s crossed the line. I recorded its screen with my trusty GoPro while I was driving, and as I approach the start/finish, it gives me a distance to it in yards, counting down as I approach. It’ll look like 18yd, 10yd, 3 yd…, and then is when the bug happens, it’ll start counting up … 5yd, 10yd, etc. What happened is that I crossed start/finish between GPS fixes, and the camera triggers when you’ve crossed within a yard or so. I’m going down the track ~120MPH when I cross start/finish, so the fixes are far apart. In one lap, where I was all alone on the straight, I crossed start/finish at about 30mph, and the camera noticed that I crossed the line because it had a fix at 0 yards.
So, I work with GPS and build maps for a living. If any Waylens developers are reading this, the correct way to detect this start finish line is to do a simple calculation - if two fixes are on opposite sides of the start/finish line, then it’s been crossed, don’t base this on absolute distance, as it will be flakey. It’s a simple fix.