Hello, quick question here:

I have a stock DJI F550 Hex that I am pulling the naza fc out of and using APM 2.5. I understand I need to use a BEC with the 30a DJI ESCs but I am unclear of how I would connect the DJI BEC to accomplish this. I recognize that the BEC is connected to main power and then to the throttle channel on my receiver  but where do I connect the other connector from the BEC? Does this go to the ESCs or the APM? There are two signal wires in addition to the power and ground. 

The APM is receiving its power from it's power module so I am not sure why I would want to connect anything other than one of the signal wires from the BEC to the throttle input signal input on APM? Is that all I need? I know the DJI ESCs don't have a built in BEC but I am not sure if this wiring arrangement would handle that issue.

Any help/advice would be appreciated.

Nate

You need to be a member of diydrones to add comments!

Join diydrones

Email me when people reply –

Replies

  • Have you guys noticed a significant difference in flight time when using the APM vs the NAZA?

    I am talking 13 minutes from a 5000mAh 3S with NAZA compared to 4 minutes on the APM 2.5.

    I am using two stock F550 DJI frames ... very strange, I am looking at flashing the DJI ESCs and playing with the PWM out to the motor, the weird thing is that PWM should be the same across the frames/ESC.

    Flashing the ESCs sounds like it might be fun/solution but is a pain since I am stationed in Jakarta and bits are hard to come by! ... If I was back in the UK would be easy.

    Would appreciate any info on how much power you guys are seeing drawn during flight ... in loiter with no stick input, I am running around 60 - 70 A. This follows that a 5000mAh battery supplies 5 A for an hour or 70A for 4'17" - way way way too much!

    Looking forward to your insight! :)

    Andy

  • Would like to make a comment on motors starting/not starting at the same time.

    I have been using DJI equipment for a while and my motors would almost never start at the same time while pushing the throttle up slowly. But then they would pick up and fly the copter w/o a problem. Especially during manual mode (NAZA I am talking about) if you go very low on throttle, some motors would quit while some would still be running. I checked this and found out that this was a common problem but not effecting flight performance.

    Now, I am using the same equipment with APM 2.5 board and I thought this wouldn't be an issue from now on. But I was wrong, Motors behave the same way (same motors, same ESCs). Most of the time (not always), they will not start at the same time. And as you advance the throttle they will catch up and fly the copter no problem.

    If you advance the throttle fast, you will not notice this.

    I am not sure why this is happening but it is happening. At least to me. It cannot be worn or damaged motors (I do not have much flight time on them. No accidents.) And I have seen this behavior on two separate multicopter kits. 

This reply was deleted.

Activity

DIY Drones via Twitter
RT @Struktur3D: We have just posted on @DIYDrones for the first time in a long time. Continuing with our search for a #lasercutting service…
19 hours ago
DIY Robocars via Twitter
RT @chr1sa: The dev team is having fun with virtual @DIYRobocars track generation with Unity on the @donkey_car discord: https://t.co/l0Jd9…
Wednesday
DIY Drones via Twitter
Review of the new Nivida Jetson NX for robocars https://t.co/bWjd3sH2o4
Tuesday
DIY Robocars via Twitter
RT @chr1sa: My review of the new @NVIDIAEmbedded Jetson Xavier NX in robotics and @DIYRobocars applications https://t.co/O7TfJZhiF9 https:/…
Monday
DIY Drones via Twitter
RT @chr1sa: Somehow I missed this, but last week @Nvidia released a new version of its Isaac robot development framework. Lots of new Lidar…
Monday
DIY Robocars via Twitter
RT @Smartphone89: DonkeyCar Racing League Korea #donkeycar @diyrobocars https://t.co/mDlHDR1d98
May 29
Jørn Ramnæs liked VIDEO LINK's profile
May 28
Mark Harrison left a comment on Moderators
"Wow, Ning2 looks really great on mobile. I had sort of drifted away as my browse-time went more on my phone, so this is great."
May 28
DIY Robocars via Twitter
https://t.co/rLmFr8M2UK
May 28
DIY Drones via Twitter
Welcome to the new DIY Drones design!. You may have noticed that DIY Drones looks a little different today. That's… https://t.co/cg2EmeDGMQ
May 27
DIY Drones via Twitter
New! Online Training on Drones for Disaster Response https://t.co/brqRuujjY2
May 26
DIY Robocars via Twitter
https://t.co/8EMCvYW6oz
May 25
DIY Robocars via Twitter
RT @OttawaAVGroup: We are going to try something new this week. We will be having a drop-in style meeting Wednesday @ 7-9pm EST. Pop in and…
May 25
DIY Robocars via Twitter
RT @tawnkramer: Thanks Everyone for another fun virtual race! Amazing Ai racers competing head-to-head, Virtual Makers Fair event. Catch us…
May 23
DIY Robocars via Twitter
RT @make: Find out the latest from @diyrobocars at 10am PT from @chr1sa of @3DRobotics on Virtually Make Faire! #makerfaire #maketogether #…
May 23
DIY Robocars via Twitter
RT @Heavy02011: Join us Saturday online: Virtual Race League: @DIYRobocars Race #2 - Parking Lot Nerds https://t.co/aJUu4sdutx #Meetup via…
May 22
More…