"Lucky13,
I was having problems with my GPS not updating and accidentally came across the posting above regarding setting the threshold. I added the string to the code and it fixed my problem. A BIG THANK you!!!"
lucky13's Discussions
GPS position hold in quadcopter..
Started this discussion. Last reply by Dr B Holt Apr 29, 2012. 2 Replies 0 Likes
Hello, Im trying to write my own code in order to do gps position hold to my quadcopter and later waypoint navigation. Im using the MediaTek MT3329 gps set to output NMEA and im decoding it with the…Continue
MediaTek MT3329 GPS problem
Started this discussion. Last reply by lucky13 Oct 2, 2011. 12 Replies 0 Likes
Hello,Today i just received the mediatek met3329 gps with adapter from diydrones.I connect it to serial1 on a arduino mega 2560 and load the example sketch found here.…Continue
6DOF IMU
Started this discussion. Last reply by bprasanthmce Apr 28, 2011. 27 Replies 0 Likes
Hello, i just buy a 6dof imu ultra thin. Im trying to get angles with this dcm code. http://voidbot.net/razor-6dof.html Everything works fine except…Continue
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Latest Activity
Gary Hunkin replied to lucky13's discussion GPS position hold in quadcopter.."This is a common problem with position hold on any CA code GPS receiver. If stationary the GPs position will vary constantly.
The static position accuracy is a statitical value based on the Cep that will vary around the true position with…"
lucky13 posted a discussionGPS position hold in quadcopter..
Hello, Im trying to write my own code in order to do gps position hold to my quadcopter and later waypoint navigation. Im using the MediaTek MT3329 gps set to output NMEA and im decoding it with the tinygps library but i have some issues that i hope somebody help me. First i had a problem with the speed threshold that the MT3329 has in default.So i was locking in a lat/log but the quad was drifting away from this point and the gps didnt update its position. I managed to "somehow" overcome this…See More
lucky13 replied to lucky13's discussion MediaTek MT3329 GPS problem"Thanx for the answers. I find that this speed threshold is very high for the position hold code that im working.. For example if try to lock in a lat/lot and the quad is slowly drifting away from that direction the gps dont update the data, it must…"
Ken replied to lucky13's discussion MediaTek MT3329 GPS problem"You do not need to send any commands to put the unit in NMEA mode. It will power up in that mode. Unless, of course, you have leftover APM software that sends the binary mode initialization to the unit.
I do not believe the unit will do 10Hz…"
Ken replied to lucky13's discussion MediaTek MT3329 GPS problem"> The problem that i have is although im getting a good fix(about 40),
> connected to 9 sats and have set a 10Hz update to the gps, i have
> to move many meters in order to get new lat and long from the gps.
Correct. To keep from…"
lucky13 replied to lucky13's discussion MediaTek MT3329 GPS problem"Oh ok.
Are you sending something like this
port.print("$PGCMD,16,1,1,1,1,1*6B\r\n"); in the initialize in order to output NMEA?
At the initialize im also sending…"
lucky13 replied to lucky13's discussion MediaTek MT3329 GPS problem"Thanx for the reply Rechie.
Can u post the full code that you are working? Also what firmware version you have on the MTK?
I was able to read the gps data without changing anything in the example of the tinygps library(test_with_gps_device) and…"
lucky13 replied to lucky13's discussion MediaTek MT3329 GPS problem"Thanx fo the answer Ritchie. I have already done what you are describing with the fast serial and its working. But in my application i also use another library that uses that HardwareSerial so im getting errors when i try to compile it.
Do you know…"
lucky13 replied to lucky13's discussion MediaTek MT3329 GPS problem"Oops! You are right. Now its working fine.
Another question.. Is it possible to use it the TinyGps lib? If yes do i have to load another firmware?
I have a problem with the FastSerial in my project using the code that u mentioned above that why i…"
3D RoboticsChris Anderson replied to lucky13's discussion MediaTek MT3329 GPS problem
"The code you're using is ancient, designed for versions of the Mediatek firmware that haven't been out for years. Use the current code instead."
lucky13 posted a discussionMediaTek MT3329 GPS problem
Hello,Today i just received the mediatek met3329 gps with adapter from diydrones.I connect it to serial1 on a arduino mega 2560 and load the example sketch found here.https://docs.google.com/leaf?id=0ByI4WbhJsiyqMDYzMjVmYTItMzc4Ni00NTRlLTg2NjctNzFiNmEwOWM2OTI4&hl=en The gps module after some time found a fix and the led was changed from blinking to solid on but in the serial…See More
DeveloperDoug Weibel replied to lucky13's discussion 6DOF IMU
"Yes, it is because of not having gps or a magnetometer. No, there is no way to fix it without a magnetometer or gps (or some other sensor giving you a heading reference). Magnetometers will work indoors."
bprasanthmce replied to lucky13's discussion 6DOF IMU"@lucky13 i am also doing a similar project. i am building an automatic leveling platform using RAZOR 6DOF IMU, arduino uno board and standard servo motors. i used the offset program given in the page http://voidbot.net/razor-6dof.htmlit shows…"
bprasanthmce replied to lucky13's discussion 6DOF IMU"@lucky13 i am also doing a similar project. i am building an automatic leveling platform using RAZOR 6DOF IMU, arduino uno board and standard servo motors. i used the offset program given in the page http://voidbot.net/razor-6dof.html
i am getting…"
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