"I too experienced that my APM (Sparkfun APM v. 1.4  - latest version at this date) would not power up when supplied only by RC. But worked ok when powered by USB. After reading this thread I studied my APM board and by some measuring and…"

"Any progress on the update yet or has it already been incorporated?   Also, the "datetime" value in the APM Status tab reads blank.  Is there any way of turning it on?"

"Chris or anyone, has anyone written the code to timestamp and collect the attitude and location information for camera shutter photos? Also, would it be possible or relatively easy to use a TTL or a simple contact closure (such as off a camera hot…"

"As best I can determine, it is the number of milliseconds since midnight UTC. i.e. to convert it to local time you need to supply the date and add the number of hours for your timezone. Python for a log I few this morning: In [1]: from datetime…"

"There are two types of packages in the file. One contains information on IMU, etc. the other is information of the GPS: latitude, long, speed, etc. This type of package has a last number without  header. This is  probably the time coded…"

"15 minutes could be right. My flights are generally 15-25 minutes with this airframe. I suppose I could just add that number of milliseconds to the time the file was created. In any case I've included a piece of one of the files.   Thanks…"

"Just FYI for any following this thread - the current intent is to change the timestamp handling in APM so that all timestamps can be reported as UNIX time in milliseconds.  This work has been started, but has been a low priority and is…"

"John, that's probably the wrong column. I guess it is time in ms, so between the first and the last photo there seems to be about a 15 min difference. Is this plausible? I do not know the format, but if you post a piece of the file here…"