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Posts posted by Spitfire76

  1. On 6/30/2019 at 4:14 AM, Atul Ghumade said:

    Hello There,

    I'm hobbyist and trying to make a drone which can fly automatically without manual interference. I want to use GPS coordinates.

    There will be a GPS enabled drone and want to move towards given destination. 

    How can I achieve this task. Please help me.


    I like to use this open source flight control stack 


    It provides both manual and autonomous flight modes. You can even setup a development/test enviroment on a computer without actually building a drone. Its a good way to learn and understand the flight control software and ground control station. Let me know if this is what you are looking for and I can help your further. 

  2. On 6/21/2019 at 6:26 AM, BenL said:

    Okay so I’m probably gonna end up sending it back to gearbest but thanks for all your help! Next question, know any good FPV drones? Lol

    That's too bad. I don't FPV race so can't recommend a drone although I do have a Tiny Whoop style drone to fly around the house. I mainly like to build larger autonomous drones, both multi-rotor and fixed wing. You may want to check out Oscar's site for recommendations. Also I noticed that he has these tips for troubleshooting arming issues.


  3. 11 minutes ago, BenL said:

    Thank you very much! I have watched that betaflight video and copied it and it still didn’t work. So this would eliminate software problems I’m pretty sure. I will double check my reciver. Also yes every other wire you mentioned is correct. 

    Well a couple of other things but I am running out. When you plug in the battery do you hear the same beeps as on the video ?. The beeps are generated by the motors from the ESCs. Also do you have a second battery to try in case the one you have is bad ?.

  4. 1 hour ago, BenL said:

    Yes it was plugged in tight. No I haven't tried connecting the camera to anything yet. Why pay for goggles if your drone doesn't even fly yet right?

    You make a good point about not buying the FPV goggles if the drone is not working. I just wanted to check if at least something was working.

    Since this is came as a kit can you double check the wiring and solder joints. Red wire from battery should go to the + and black to - but of course you would be in real trouble of that was not the case. The small capacitor has a grey line to indicate the negative -


    Screen Shot 2019-06-18 at 10.25.25 AM.png

  5. To add to my previous post although you are getting a bad logging message is the rangefinder actually operating ?. One way to test it without flying is to simply to go to Initial Setup in Mission Planner and under Optional Hardware select rangefinder it should show distance.

  6. 7 hours ago, erfan said:

    and as soon as I disconnect the rangefinder it shows bad LIDAR Health

    I would imagine that's normal behavior as you have configured a rangefinder but have disconnected the hardware. LIDAR is referring to the rangefinder what ever type you have configured. 

    7 hours ago, erfan said:

    as soon as I connect the rangefinder it shows bad logging, 

    This we need to troubleshoot further. Is it constantly reporting bad logging ?

  7. 12 hours ago, BenL said:

    No this is not the case on my aircraft. 

    ok, good at least we can eliminate that from having done any damage. The video that you posted earlier looks like its just flashing F then a 4 which I would imagine is the band and channel its using for the 5.8 Ghz video channel. In fact have you been able to test the camera by using FPV googles or a monitor ?. Also in that video is that 7 pin connector securely plugged in as it looks kind of wonky ?



  8. 49 minutes ago, BenL said:

    I tried disconnecting the camera and it did the same thing. Here’s a quick video on what the channel indicater is doing. (It keeps doing that so just play it on repeat and you’ll get the same effect)

    Before we understand why the video channel is changing I would first like to follow-up on that camera connection to the flight controller as it sounds like from the build video that it could have caused some damage. I managed to capture this from that build video and as you can see the marking's on the board are 5V, GND and V but the red wire is connected to the V pin and the yellow wire to the 5V and this should be reversed. Can you check if this is the case with your kit, if not its something we can eliminate. 


  9. 12 hours ago, BenL said:

    its okay:) gonna tick all the boxes. Yes the battery is charged and connected 

    In that case it must be something in the build that's not right. I am sure you have checked the wiring but I found this video on the build and he mentions that his kit had some wiring crossed between the flight controller and the camera so maybe simply disconnect camera as you don't need it to test the motors. 


  10. 22 minutes ago, BenL said:

    have tried that. The motors do not spin

    Sorry to ask this but is the battery charged and connected as although the flight controller will get enough power from the usb connection of the PC its not sufficient to power the motors.

  11. 3 hours ago, BenL said:

    But the motors wont spin

    Have you tried the "motor test" in betaflight ?. You will need to select the "I understand the risks....." to enable it as they want to make sure you remove the props but you should be able to test each motor and you don't have to be in arm mode or even have the transmitter on. In retrospect I should have suggested that earlier.

  12. 50 minutes ago, BenL said:

    So i can move the switch (and Betaflight sees that i move it) but it does not turn orange 

    Here are a couple of screen shots from my setup. The first is one is with the switch in disarm and the second is when its armed. You are right it looks like the square to the left does not turn orange but whats important is the small orange PWM indicator moves from the gray range to the orange range.



  13. 22 hours ago, BenL said:

    Update: I have managed to connect it to beta flight and set arm switch but now the motors simply do not move.

    Now that you are connected with the Betaflight configurator you should be able to check that the arm switch is actually working by going to the modes menu. You should have an "ARM" mode configured and when you operate the switch on your transmitter it should move from the gray area to the orange. Its that the case ?.

  14. 12 hours ago, erfan said:

    The range is indeed an issue. I want to send my drone to somewhere lets say 300m or 400m distance (or maybe more )and once its in the location and landed I get a message regarding that it is landed and give me a message to forexample Turn your LED on  and then I need to tell to the drone it needs to turn on  its led by writing the command or forexample  Start a measurment.


    Ok,  what is the role of the Raspberry Pi ?. If you just need to turn on a LED you could simply use the aux outputs of the the HKPilot32. These can be controlled by either a mission script or a switch on the transmitter. 



  15. 13 hours ago, tom42100124 said:

    I think my 4s battery wasn't enough voltage to my motors so I ordered a 6s battery that i'll hook up to it tommoorw when it gets here and see if that works. It should spin these motors more per minute and give me more thrust lift that I needed.

    Well it does look like 4s is the low end for those motors. The first table here is for the 370kv motor and shows the recommended battery/prop combination. It also shows the thrust each motor generates so we should be able to work out if that's sufficient.


    So what size props are you using and also what is the total takeoff wait of the UAV ?

    To just counter gravity the motor/prop thrust needs to be the same as the weight of the UAV and of course to fly it needs to be much more. My understanding is that the rule of thumb is for the motor/prop thrust to be up to twice the take of weight.