Trying Harry's Lap Timer again with the external GPS and the ODB-II interface for the first time. Again, disappointing. The ODB-II worked pretty well but the external GPS would sync up quickly then lose track of all satellites. I reverted to the iPhone built-in GPS which missed the start/finish a lot. The first couple sessions I manaually started the video only to find it would track lap times. After that I let it go full auto and that seemed to work better. The last session it wouldn't detect the start/finish the first couple laps so I manually turned on the video. Unfortunately I had only a couple good laps with the cool overlay stuff.
Lap times sucked at first since I was so rusty but I eventually got back to low 1:27 lap times but couldn't get any better. Grrr. I'll have to come back sooner.
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Lap Video
Below are two clips. The first is just some raw footage of a couple decent laps I hate late in the day.
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The second is footage earlier in the day and one of the few laps where
Harry's Lap Timer worked properly. Here it's interesting to see the
data overlay. If only it worked more reliably. This looks like useful data.
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