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Patrick Mccabe
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- San Antonio, FL
- United States
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Patrick Mccabe's Discussions
GPS library-ish code
Replied Mar 12
GPS library-ish code
Replied Mar 11
GPS library-ish code
Replied Mar 11
Patrick Mccabe's Page
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OK, bearing vs heading. If you want to go from lat1, lon1 to lat2, lon2 you can calculated the bearing to point 2. But unless you have a compass on board, you don't know your heading. So you need to start moving, then the GPS will tell you your head…
here is what i am reading on bearing http://mathforum.org/library/drmath/view/55417.html. First i would want to get my bearing by driving straight a bit and then get the bearing from my current GPS point to my ending point. Then how should i go abou…
Fantastic. Wish there were a few more people your age willing to stay on a project even when it requires thought.
One thing to keep firmly in mind on your "direction" part is to remember if you are looking to find the direction TO your target, or t…
Got it all working now. :D. I have it showing the distance from my current location using the GPS to my mailbox. Now time for heading.
Ok so i know the problem now. The GPS points from the GPS is in minutes. Well at least the decimal part is. It says my latitude is at 28.194378 but that is not in degrees format. So that is the problem but i do now know how to change that to degrees.
so it is normal for it to print to the first 2 decimal places of a float so the rest is there just not being printed. http://www.arduino.cc/en/Serial/Print. But this does not explain why using the gps points from the gps and my code, i get over 17,0…
maybe a uint32_t or something....idk.
well maybe not coming from the gps, but from the code. "longitude" in the code = 28184348
What specific lat & long strings are coming from the GPS ?
You mean the "281848348" above?
I got 308.35 meters running the code above. Sounds good!
yes, i get 310 meters. Still do not have the heading code yet. But the problem is using the GPS and getting the degrees from it. I can not think of another way to move the decimal point but multiplying by E10^-7. So i think that has to stay. float h…
using your lat & lon 1 & 2 at the start of the code, I believe that the correct answer, from #1 to #2 is 0.19 statue miles, or 0.17 Nm, or 0.31km, or 310 meters, or 1007 feet on a heading of 93 degrees.
If the FTDI drivers are installed on this com…
well when i multiply by say 10000 then the other numbers appear again so i guess just printing. But when i have it plug my current gps point in, it gives me some distance that is not accurate i believe because it is only going to 2 decimal places. I…
Did you decide to do it on an Arduino or a spreadsheet? You may find it faster on a spreadsheet until you get most of the details worked out. Save all that compile/upload time.
Are you sure that you have only 2 digits after the decimal point, or ar…
now i am trying to get 281848348 to equal 28.184348 which would be the correct degrees, the decimal point is in the wrong spot. So i thought i would try and just multiply by E^-7. But that gives me 28.18 and gets rid of the rest. I am just trying to…
Found this online (modified it a bit and used gps points near me). The guy said it was basically a copy and paste from one of the ardupilot code versions. Seems to work.
float flat1=28.323996;
float flon1=-82.267752;
float flat2=28.323812;
float fl…
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Ok im back with the same problem ( no manual control)
Yup i fixed it since last time. They said it was the round headers that were not making a good connection. Well i got square ones and they are now tight fitting. So why do i have a problem? Ok im using 2.0 code which loads fine no z sensor or expansion shield. 2.4ghz 6ch transmitter and receiver already bonded and i know they are. I dont i have the ESC plugged in and am using a UBEC to power the receiver and board. Ok so i believe that everything is plugged in right and the lights are right so i… Continue
Posted on August 6, 2009 at 4:05pm — 14 Comments
Video showing my problem
ok im having alot of problems.
1. The UAV mode is not working
2. Manual mode is not working
3. so nothing is really working
I have successfully downloaded 2.1 code. And i have put one gps point in using the configuration tool. But if you watch the video you will see i have the right setup (i believe) but its not working.
So please watch the video and see if you can help.
Thank you.
click here to see video on youtube Continue
1. The UAV mode is not working
2. Manual mode is not working
3. so nothing is really working
I have successfully downloaded 2.1 code. And i have put one gps point in using the configuration tool. But if you watch the video you will see i have the right setup (i believe) but its not working.
So please watch the video and see if you can help.
Thank you.
click here to see video on youtube Continue
Posted on July 16, 2009 at 4:20pm — 12 Comments
Its official, i am going to build a UAV. I just bought the last Ardupilot from sparkfun. Go ahead ch…
Its official, i am going to build a UAV. I just bought the last Ardupilot from sparkfun. Go ahead check they are sold out. https://www.sparkfun.com/commerce/product_info.php?products_id=8785 Continue
Posted on June 17, 2009 at 7:30pm — 2 Comments
Comment Wall (1 comment)
- At 10:13am on August 8, 2009,
Robert Drone said… - what system is needed to power the tx/rx you showed me?
Link [in case you don't remember]
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