"Hey Guys! I bought the MTK adapter, but I wanted to use the GPS with USB instead of Serial. I have soldered a USB cable to it but it keeps on connecting and disconnecting... Any ideas??
Best Regards ;)
AS"
LeeJR's Discussions
Weird stuff with MTek and ArduCopter.
Started this discussion. Last reply by Tony H Aug 3, 2010. 7 Replies 0 Likes
Has anybody seen this behavior before. When the MediaTek MT3329 is hooked up I see some sort of noise in the read outs. Several of the indicator jump at a specific intervals. I’m able to run both…Continue
MediaTek MT3329 Issues
Started this discussion. Last reply by AS Oct 11, 2010. 6 Replies 0 Likes
I'm having an issue establishing data from theMediaTek MT3329. Its connected to the APM (Red board) using the ublox cable from the diydrone store. The MTK adapter board has a solid blue light…Continue
LeeJR's Page
Latest Activity
LeeJR commented on Gary Mortimer's blog post Send for Crossfire"Link to video demo of flights and advantages.
http://www.youtube.com/watch?v=sbuGCgc-JCM
http://www.fastcompany.com/1646372/uav-samari-lockheed-martin-helicopter-monocopter-spying-drone-aircraft-research"
LeeJR replied to Scott Quartochi's discussion Getting my ArduCopter in the Air?"Can you share how you are powering up the APM and connecting the USB. I have read that hooking them both up at the same time can short out the APM. Do you use a BEC and isolate the power from the APM and ESC."
LeeJR replied to Neil Baker's discussion 1/2 Watt Modem (xbee replacement)"Double check the transmitting rates."
Tony H replied to LeeJR's discussion Weird stuff with MTek and ArduCopter."Commenting out the serial print gps latitude and longitude lines in arducopter.pde fixed the problem for me.
In lines 678-680, change to this:
// Serial.print(GPS.Lattitude);
// Serial.print(",");
// Serial.print(GPS.Longitude);
Before I…"
Tony H replied to LeeJR's discussion Weird stuff with MTek and ArduCopter."Starting with r53 of the arducopter code, if I include the GPS_MTK.h library in the arducopter.pde, I would get spikes in my accelerometer readings. It goes away if I use the GPS_NMEA.h. Before r53, I didn't have a problem with the GPS_MTK…"
LeeJR replied to LeeJR's discussion Weird stuff with MTek and ArduCopter."Jani,
Thank I'm just a little overly enthusiastic with the project and the community. I love this stuff. I will hold tight until the offical release. I might have to buy a second board so I bug the ArduPilot Megas guys also ;)
Cheers"
JDronesJani Hirvinen replied to LeeJR's discussion Weird stuff with MTek and ArduCopter.
"There are still issues with GPS libraries and ArduCopter code. Like you also said that it's still Alpha code. Mainly we have been working around general flight algorithms and making it stable so GPS functions has less priority on out code. Code…"
LeeJR replied to LeeJR's discussion Weird stuff with MTek and ArduCopter."Update,
Modified the cable going from the APM to the GPS adapter only discontenting the tx. Everything stabilized. I'm thinking I got my GPS in a unsupported or mode refresh rate ect... or the alpha software dose not understand the stream and…"
LeeJR replied to LeeJR's discussion Weird stuff with MTek and ArduCopter."Ken,
Thank you for the reply, I will start tracking down that direction."
Ken replied to LeeJR's discussion Weird stuff with MTek and ArduCopter."Very interesting. Looks like each time the GPS transmits, the increase in current draw is affecting the analog circuitry. You didn't do anything that would make the serial input line an output and cause it to draw lots of current when driven,…"
LeeJR posted a discussionWeird stuff with MTek and ArduCopter.
Has anybody seen this behavior before. When the MediaTek MT3329 is hooked up I see some sort of noise in the read outs. Several of the indicator jump at a specific intervals. I’m able to run both the NMEA and MTK Binary test code ok and reports back correct information. There also seems to be a pause in the data stream when viewing the com port with serial monitor. The two test GPS programs kick back a fairly constant stream. Background history, I had troubles first using the MTek for…See More
LeeJR replied to LeeJR's discussion MediaTek MT3329 Issues"Here is the code I pasted into the ArduinoPilotMega and uploaded. After successful MTK update you will see what looks like garbage in the serial monitor. This is the binary output. One you see it you can upload GPS_MTK_test.pde found in the latest…"
LeeJR replied to LeeJR's discussion MediaTek MT3329 Issues"I have confirmed the MTK is in NMEA mode. Is there a beginner guide to reset it to binary mode?
I have reviewed the link in the store and understand I need to send the GPS a string to reprogram it.
$PGCMD,16,0,0,0,0,0*6A = Binary mode
How is it…"
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- About Me:
- New to the RC UAV, However very quick learner and hope to contribute back to community.
- Tell us a bit about your UAV interest
- Building UAV based on open-source tech.
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- Salt Lake City
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