This is my first DJI HD build (and second build overall). The goal is to to long range but with small steps. Video link and battery capacity are going to be the restricting factors, I guess.
- I built a DIY Li-Ion 6S 4000mAh pack, and works great. The current is quite low, so it's working perfectly. Haven't tested maximum flight time, yet.
- The racewires are not really neccessary. I just installed them because I like the idea and the motor wires were too short. In the end they are located too close to the motors on the shorter arms, so they might look nice but won't protect the wires. But I'm too lazy to correct that on this quad, especially as it's not meant to be used for freestyle.
- I have no idea where the frame designers wanted me to place the battery. The battery pad is located on top of the quad, but there's almost no room for straps. On the bottom there would be plenty of room for a battery/straps, but I like it top mounted, because I damaged a 6S-bottom-mounted on first flight with my 5".
- PID tune is neccessary, I guess. At least it sounds really strange, compared to my 5". Also the video wobbles. But for now I'm not going to mess with tuning.
Notes
- UART 4: DJI Air Unit
- UART 5: GPS
- UART 6: Crossfire Receiver
- I connected the GPS using the pads mentioned in this ticket (works on Betaflight for me): https://github.com/iNavFlight/inav/issues/5189#issuecomment-580953352
Photos
Part List
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Hey, i build a similar build. I have the same Frame with the DJI Air Unit.
I bought also mmcx straight to sma cable but part 5 and not part 6, but the lenght shoud be the same. The lenght is a little little bit to short from the air unit to the 3d part. What do i wrong?
How did you connect the SCL and SDA from the Bn880 to the Mamba F7?
Sorry, should have replied here. Take a look here: https://github.com/iNavFlight/inav/issues/5189#issuecomment-580953352
I used these pads.
I found this ticket and soldered the pads seen on the photo: https://github.com/iNavFlight/inav/issues/5189#issuecomment-580953352
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