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Old Dec 26, 2011, 08:36 PM
PLD
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Sounds great. Congrats -- I know you were worried 'bout that.
Sure was, didn't make sense - but I'm glad it's not happening now that I can tell so far.

Quote:
Just a thought -- if you connect the SLOGGER between the BEC and the RX, would it log the net current load of all the servos?
This is correct; obviously the downside is you get no servo pulse data of course.

Paul.
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Old Dec 27, 2011, 05:29 AM
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Quote:
Originally Posted by modbuilder View Post
Sounds great. Congrats -- I know you were worried 'bout that.

Just a thought -- if you connect the SLOGGER between the BEC and the RX, would it log the net current load of all the servos?
see Post 11,, I think this is the same thing. that's how I'm going to use it to assess my source power.
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Old Dec 27, 2011, 02:31 PM
KJ4WFG
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see Post 11,, I think this is the same thing. that's how I'm going to use it to assess my source power.
Yeah, I kinda thought that's what you were describing, but I wasn't sure. I current plan to start out with a static check of the total and individuals before the maiden on a new plane, then an in-flight check of the total load without much stress on the servos. If all still looks good, see about the total load with my limited aerobatic/3D and some higher speed stuff to make sure I have a robust set up with everything new. Then move on to getting individual servo in-flight data to look for differences among them and get a baseline of data when everything is as good as it can be. Then as time goes by, and uh-oh's happen, I'll have a baseline from which to evaluate whether a servo is still up to the task. What're your plans for it?
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Old Dec 29, 2011, 02:57 AM
PLD
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While the new design alleviates the "reset" problem it still isn't lasting long-enough during a brownout to keep logging, so I'm putting a 100uF cap on to the backside of the board to give it about 0.5s of life during a brown-out event, the downside of course is that it makes things a bit bulky.
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Old Dec 30, 2011, 10:00 PM
KJ4WFG
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Originally Posted by PLD View Post
While the new design alleviates the "reset" problem it still isn't lasting long-enough during a brownout to keep logging, so I'm putting a 100uF cap on to the backside of the board to give it about 0.5s of life during a brown-out event, the downside of course is that it makes things a bit bulky.
Good trade off considering that brown outs are a key moment to have data.

Happy New Year................. R
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Old Jan 02, 2012, 08:03 PM
PLD
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Software/firmware choice here.... I am wondering if I should pre-convert the raw data into meaningful units before sending it out over the serial dump, eg, 231 32 99 gets converted to 5.1V 2.1A 990us, or just pump the raw data out and let the software on the PC do the conversion.

Pros of converting before sending:
* Allows me to change the raw storage in the future without needing to update the PC software or worry about versions
* Allows you to load the data into any stats/graphing program

Cons:
* Increases the firmware size (though fortunately I've not run out)
* Takes a lot longer to send the data from the logger to the PC
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Old Jan 03, 2012, 11:13 AM
KJ4WFG
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Originally Posted by PLD View Post
Software/firmware choice here.... I am wondering if I should pre-convert the raw data into meaningful units before sending it out over the serial dump, eg, 231 32 99 gets converted to 5.1V 2.1A 990us, or just pump the raw data out and let the software on the PC do the conversion.

Pros of converting before sending:
* Allows me to change the raw storage in the future without needing to update the PC software or worry about versions
* Allows you to load the data into any stats/graphing program

Cons:
* Increases the firmware size (though fortunately I've not run out)
* Takes a lot longer to send the data from the logger to the PC
Hi Paul -- I'm all for convert before sending. Longer time to off-load the data to the PC is not an issue for me. Just my $.02 .
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Old Jan 03, 2012, 01:53 PM
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I second modbuilder.

Glen
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Old Jan 09, 2012, 05:51 PM
KJ4WFG
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Hi Paul -- Any good news on SLOGGER?
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Old Jan 12, 2012, 01:08 PM
KJ4WFG
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Yo Paul. -- feed me.......R
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Old Jan 12, 2012, 05:27 PM
PLD
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Hiya folks, just dealing with a family death at the moment (last couple of weeks) but I'll be back soon (Monday) as the last of the things that have to be done is finished off today.

It's okay, I'm not "in mourning" as such, rather there's just a lot of other things that have had to be done outside of one's normal routines.

Paul.
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Old Jan 12, 2012, 07:51 PM
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Apologies for adding to the pressure. Hope you and your family are OK.
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Old Jan 12, 2012, 11:49 PM
PLD
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No, really, it's okay - it's just thrown a spanner in the schedule of things - I'm quite fine; my role was more of a supportive/utility one. Just wanted to give you guys a reassurance I wasn't forgetting about you.

I was working on the program to do the displaying of the data - writing it in OpenPascal + Lazarus (think "Delphi" ), at least that's how it's looking for now.
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Old Jan 26, 2012, 09:22 PM
KJ4WFG
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These folks need a SLOGGER.

Check out this recent thread. This kind of thing is on a lot of folks minds:

http://www.rcgroups.com/forums/showthread.php?t=1581767
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Old Jan 26, 2012, 09:27 PM
PLD
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How would you feel if I got the SLOGGER out, dumping raw serial data, and then worked on the viewing app? The data can actually be turned into graphs via Excel or gnuplot already.

At times I think it might have been easier to make this unit with a microSD card instead.
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