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Unable to Lift off - DJI F450 can't lift

Started by Ther K Vang. Last reply by John O'Brien yesterday. 3 Replies

Hi,I am a rookie and just star a drone kit and after getting all the pieces together and trying to lift it off with a Taranis remote it won't fly off. I am using the pre-multi rotor set that the…Continue

Spinnig motors with no controller activated

Started by Suzana on Wednesday. 0 Replies

Hello people,I would like to know how I can spin the 4 motors of my IRIS 3DR+ using a PWM wave. Although, I don't want any controller active while I'm spinning the motors, at least, not now.…Continue

Tags: hal.rcout, PWM, spin, motors

tarot t4-3d gimbal compability with pixhawk

Started by Nichon. Last reply by Gabor H May 24. 4 Replies

Anyone managed to get pixhawk to control the t4-3d gimbal?i've tried following the same steps in the wiki but that was for the 2 axis gimbal…Continue

Leddar One optical range-finder support coming to ArduPilot?

Started by Tony Kenward. Last reply by Lance Brummett May 21. 13 Replies

Now that the LidarLite is off the market (until Garmin brings it back), there are not many options for accurate altitude sensing.I have a optical flow sensor that I would like to mount up, but I…Continue

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Comment by Tony Wall yesterday

You can derive the pin-outs of the GPS from the PixFalcon documentation here: http://www.pixfalcon.com/download/MICRO-PX4.pdf

Page 4 GPS & I2C port.

Comment by Cala on Sunday

the only thing that I found that wire is compatible with Pixfalcon and I found Pixfalcon  labels but 5v is in the middle and not the red one

Comment by Cala on Sunday

I opened but anything :(

Comment by Craig on Sunday

Guys, someone have this micro gps m8n from Hking?http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=...

I need diagram connections and I can't find and nothing write on the board :( , I only find that red isn't 5v .I'm afraid to burn it. (is for connect to a Pixracer) 

open the case, the board should have the labels to which pin goes where.

Comment by Cala on Saturday

Guys, someone have this micro gps m8n from Hking?http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=...

I need diagram connections and I can't find and nothing write on the board :( , I only find that red isn't 5v .I'm afraid to burn it. (is for connect to a Pixracer) 

Comment by Paul N Braida M.E on April 18, 2016 at 6:30am

both boards have a 3DR stamp on the bottom and used to work. Now the one will upload and verify the firmware but not connect to Mavlink and the other will not upload firmware or anything. Both boards are receiving the required 3.3 volts.

I don't know, maybe just scrap the boards?

3DR do not seem to want to help me on this. Maybe I will forget APM and go with the NAZA controller. 

Comment by bijoux-de-lithotherapie on April 18, 2016 at 1:47am

Hi All :)


Developer
Comment by Randy on April 13, 2016 at 5:14pm

@PaulNBraida,

Maybe try loading Plane onto the broken boards?  It's possible (if you're not using a 3DR APM) that the last copter firmware meant for the AVR boards doesn't fit on it because the manufacturer has put a bootloader that's slightly too large on it.

Also even though you can't connect via MAVLink you should still be able to upload firmware.  The issue is that Mission Planner (I assume this is what you're using) needs to first recognise the board (so it can get the correct firmware) and then it needs the board to be in bootloader mode to actually upload the firmware (the board is in bootloader mode for the first few seconds after being powered).  This means you might need to mess around a bit, connecting and disconnecting the board at the appropriate times.  I.e. plug in the board, push the MP's firmware upload button, disconnect and reconnect the board.

Comment by Paul N Braida M.E on April 13, 2016 at 8:36am

I still need help with my two APM 2.5. On one I can upload and verify firmware but it times out connecting to Mavlink. Error no heartbeat packets received. The other APM cannot upload firmware or connect. It has the same error. The port & baud are set ok. While counting down trying to connect I can see the small amber LED flashing slowly. Voltage on the outside pins of IC 2 is ok. I changed the volt regulator.

I'd really like to use these controllers, not just junk them.

Thanks

Comment by Chris Leech on April 10, 2016 at 7:01pm

ANother thing that happens is that unless you have some aluminum or kapton tape over the area you will probably blow the tiny caps and resistors off the PCB. And believe me, once they are gone, you are in a fix. Get a nice close up photo of this area to see what I mean. If you need some, I can post a few of one (APM2.6) that I am working on.

 
 
 

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