Guys,I was out test flying my project today. Came home, wanted to run some ground tests, found my GPS will not lock and I get no red indicator on the GPS. I know it should indicate lock and blinking red when working properly. Any Ideas?? Im powering the system off a 2.4 spektrum rec. Im running a 3 cell Lipo to the Parkzone ESC. any problems with that??After getting the unit back inside, I can tell the Red LED on the GPS is very dim. Its trying to come on but not really. I think something has decided to not work anymore. any ideas??
// test=middle_yaw+PID_heading(compass_error(wp_bearing, course)); //Central Position + PID(compass_error(desired course, current course)).
test=middle_yaw+PID_heading(compass_error(45, course)); // Special mode to just fly NE. Comment out line above and use this one to test autopilot
The Arduino team reversed the order of some bit-level operations in Arduino 14 and up. Annoying, but we'll put this behind us soon.
That's a long-standing issue. But yes, you should use Arduino 13 to load 1.0 (and NE). We'll update them for Arduino 15 and up in a week or two. I don't think that has anything to do with your GPS issue, however.
If you're using ArduPilot 2.0 or above, it programs the GPS into binary mode, which disables the LED (actually just very dim, and not blinking with lock). So that's normal.
If, however, you're using ArduPilot 1.0, the GPS LED should be on and blinking with lock, so the lack of that would indicate a problem.
I was doing some ground testing with my GPS last night too while developing some software, and also found that my very reliable GPS would also not lock on,... and when it did after leaving it, I only get 3-4 sats, were otherwise I would get 9-10. Maybe it wasn't just you,....Very odd indeed.
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// test=middle_yaw+PID_heading(compass_error(wp_bearing, course)); //Central Position + PID(compass_error(desired course, current course)).
test=middle_yaw+PID_heading(compass_error(45, course)); // Special mode to just fly NE. Comment out line above and use this one to test autopilot
The Arduino team reversed the order of some bit-level operations in Arduino 14 and up. Annoying, but we'll put this behind us soon.
Thats where I found that info. Thanks.
Chris,
Thanks, I will try reloading with 13. What are the problems associated with 15 and 1.0??
also, being a newbie with all of this, what makes the model track NE in the NE code?? I can't find that part. little help please??
Check out this blog post: http://diydrones.com/profiles/blogs/latest-version-of-arduino-ide
Regards,
TCIII
If, however, you're using ArduPilot 1.0, the GPS LED should be on and blinking with lock, so the lack of that would indicate a problem.