I am building my first FPV drone ever and as probably many of you remember your first time, it can be a bit confusing. I hope this community can help me out, as I feel a bit stuck. Here are my two problems as illustrated in the picture above:

1. I got a Mamba F22 mini stack that I want to connect to the DJI Digital FPV air unit. All these connections on the board are quite confusing to me, even when checking out this scheme by Diatone. Can someone please point out which wire should connect to what pin? Maybe someone could put dots of each color on the right pins?
   
   
2. I am a bit confused about how to connect the motors to the ESC. All the wires look the same and there seems to be no markings on the pins either. How do I know what wire to connect where?
   

I appreciate all the help I can get and thank you all in advance!

Follow the diagram you have a link to. As for the motors just lay the ESC right side up and put the motors to all four corners, then take the wires from the motors and put them on the pins in order. There are 6 pins on each side of the ESC and each motor has 3 wires. That should be the easiest part which is why it doesn't show exactly how in the diagram I guess.

say you have the ESC facing the way it is in the picture you have linked. Take a motor and put it to the left facing up.... take the top wire and put it on the top pin above the hole (weird layout for an ESC, first time i've see it done that way) then take the middle wire and place it on the pin right under the hole (the very next pin under the first one) and so on.

The trick is to solder them in the direction that most suits the frame, but you most likely won't get that right the first time but it will work out even if it doesn't look so pretty.

just make sure that when you solder the pins none of the solder touches other pins or other solder joins or you could ruin your shit.

It's not the same exact stack but it's the same concept and will help you with the motors. 

The rest you're gonna have to just take your time and figure out that diagram you linked. It's a really good diagram and I'm not sure how much better anyone is gonna be able to explain it than that.

Unfortunately from the looks of it you chose and expert level build for your first. I hope you have flux. those little -pads are gonna be impossibly hard not to bridge without tons of flux.

Edit: You wrote F22 stack so I thought you meant the F4 this video is the one you need.

I built my first Kwad ever yesterday, and it happens to be a DJI system. I used the T moto f55a Stack, There is absolutely no reference online on how to weld the air unit to the FC.
I still have some questions since Im a total rookie, thought someone might be able to help me out here;

1. I did not purchase the DJI RC since I think its a rip off for 320 € , Now It seems like I need a receiver to connect my Taranis. Id that's the case how do I connect that to the Air unit, and do I still use the antennas from dji ?

Do I connect the antennas to the receiver ?

And Does any body here know how to wire the air unit to the T motor All 4 flight controller ?

I would really appreciate some feed back.

Sean.

(28-Sep-2019, 07:34 PM)Seanalami Wrote: I built my first Kwad ever yesterday, and it happens to be a DJI system. I used the T moto f55a Stack, There is absolutely no reference online on how to weld the air unit to the FC.
I still have some questions since Im a total rookie, thought someone might be able to help me out here;

1. I did not purchase the DJI RC since I think its a rip off for 320 € , Now It seems like I need a receiver to connect my Taranis. Id that's the case how do I connect that to the Air unit, and do I still use the antennas from dji ?  

Do I connect the antennas to the receiver ?

And Does any body here know how to wire the air unit to the T motor All 4 flight controller ?

I would really appreciate some feed back.

If you just want to use the Air unit for video transmission only and don't care about OSD telemetry and other Betaflight capabilities in the googles (such as PIDs, rates & filters etc.) then you just need to connect power to the Air unit (red and black wires) which can come directly from your flight controller and that is all.

If you also want the OSD telemetry and other Betaflight capabilities in the DJI goggles as well then you additionally need to connect the white and grey wires to a spare UART and switch on MSP for that UART in Betaflight Configurator.

You will need both of the antennas attached to the Air Unit because they are both needed for video data transmission.

As you won't be using the DJI transmitter you just leave the yellow and brown wires disconnected and you wire up and configure an FrSky receiver to your flight controller as you normally would for a quad which uses the standard analogue camera system. I recommend you get either the XM+ of R-XSR receiver. If you want telemetry data on your transmitter then you will need to get the R-XSR because the XM+ doesn't support telemetry. The receiver will come with it's own antennas that you also need to use in addition to the ones on the DJI Air Unit. If you need help setting up the FrSky receiver, just post another thread on here and we can help you with that  

SnowLeopardFPV You are a true champion for getting back to me so quick, This process is so frustrating when you simply don't know Jack about this craft yet.

So Simply Thank you for such valuable info, I have gone a head and ordered me a R-XSR. Once I have that tomorrow I will need to know hot to connect it. I will also provide you with pictures. of the FC and ask you if Ive connected the right Cables.

Thank you.

(29-Sep-2019, 12:56 PM)Seanalami Wrote: I have gone a head and ordered me a R-XSR. Once I have that tomorrow I will need to know hot to connect it. I will also provide you with pictures. of the FC and ask you if Ive connected the right Cables.

I guess one thing I forgot to ask is whether you intend to do freestyle / racing, or long range.

Both the R-XSR and XM+ are 2.4GHz receivers so range is limited. I've flown out over 600m with my R-XSR before RSSI starts dropping below 50 which is the point tbat I usually turn around and head back towards me, but it does depend on atmospheric conditions and any other interference that may be presnt where you fly (i.e. WiFi, electrical interference etc.).

(29-Sep-2019, 01:23 PM)SnowLeopardFPV Wrote: I guess one thing I forgot to ask is whether you intend to do freestyle / racing, or long range.

Both the R-XSR and XM+ are 2.4GHz receivers so range is limited. I've flown out over 600m with my R-XSR before RSSI starts dropping below 50 which is the point tbat I usually turn around and head back towards me, but it does depend on atmospheric conditions and any other interference that may be presnt where you fly (i.e. WiFi, electrical interference etc.).

I am a DP, my intentions are mostly Cinematic. But I wouldn't have mnined flying 1km away if I saw I had to

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(29-Sep-2019, 01:23 PM)SnowLeopardFPV Wrote: I guess one thing I forgot to ask is whether you intend to do freestyle / racing, or long range.

Both the R-XSR and XM+ are 2.4GHz receivers so range is limited. I've flown out over 600m with my R-XSR before RSSI starts dropping below 50 which is the point tbat I usually turn around and head back towards me, but it does depend on atmospheric conditions and any other interference that may be presnt where you fly (i.e. WiFi, electrical interference etc.).

I am a DP, my intentions are mostly Cinematic. But I wouldn't have minded flying 1km away if I saw I had to

(29-Sep-2019, 10:05 PM)Seanalami Wrote: I am a DP, my intentions are mostly Cinematic. But I wouldn't have mnined flying 1km away if I saw I had to

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I am a DP, my intentions are mostly Cinematic. But I wouldn't have minded flying 1km away if I saw I had to

You could get the Frsky R9M or R9M Lite depending your controller and the R9MM receiver. The R9 is the cheap FrSky solution for long range. I have it and so far i didn't tried it more than 500 meters, but the RSSI is always on top. If you're doing cinematic stuff, you'll probably will have, eventually, to go up to the trees and beyond, so a capable system will pay off.

(29-Sep-2019, 10:05 PM)Seanalami Wrote: I am a DP, my intentions are mostly Cinematic. But I wouldn't have mnined flying 1km away if I saw I had to

If you're going to start flying long distance you would ultimately be better off either just getting the DJI controller that goes with that Air Unit, or purchasing the modules and receivers for either the FrSky R9 System or the TBS Crossfire System. Both of the latter are 900MHz systems that can reach into the tens of kilometres if you set them up properly and will always outreach your video signal range.

I think some people have been out over a kilometre on the R-XSR and XM+ receivers but it really does depend on where you are flying. I start getting jittery once my RSSI drops below 50 for fear of a failsafe that far away from me.

(29-Sep-2019, 10:19 PM)SnowLeopardFPV Wrote: If you're going to start flying long distance you would ultimately be better off either just getting the DJI controller that goes with that Air Unit, or purchasing the modules and receivers for either the FrSky R9 System or the TBS Crossfire System. Both of the latter are 900MHz systems that can reach into the tens of kilometres if you set them up properly and will always outreach your video signal range.

I think some people have been out over a kilometre on the R-XSR and XM+ receivers but it really does depend on where you are flying. I start getting jittery once my RSSI drops below 50 for fear of a failsafe that far away from me.

Hey, 

So I am trying to put this thing together, I am following the steps from this video https://www.youtube.com/watch?time_conti...9pXYOjHpEo.

But the Dji Air unit is not gettin power. 

I have included the pictures below. 

Could you tell what Im doin wrong. 

Cheers.

(03-Oct-2019, 09:31 PM)Seanalami Wrote: So I am trying to put this thing together, I am following the steps from this video https://www.youtube.com/watch?time_conti...9pXYOjHpEo.

But the Dji Air unit is not gettin power. 

I have included the pictures below. 

Could you tell what Im doin wrong.

OK, first off that red wire is connected to the camera voltage pad which is fine. However, that pad can either output 5V or LiPo voltage depending on a set of bridged pads on the other side of that board. The Air Unit needs a voltage in the range of 7.4V - 17.5V so if that camera voltage pad is only outputting 5V it won't be enough.

Flip over the board and make sure you have bridged the two pads for "Output battery voltage" so that LiPo voltage gets output on the camera voltage pad as shown on the image below. Make sure you don't connect a LiPo of more than 4S otherwise you will damage the Air Unit. You need to connect a 2S, 3S or 4S LiPo.

Also, no offence intended but you might want to work on your soldering technique because those soldering joints don't look great and there is a danger of either dry joints or unnecessary exposed wire which could touch another pad and cause a short. The last thing you want is to lose your quad due to a mid air power failure because of poor soldering.

(03-Oct-2019, 10:23 PM)SnowLeopardFPV Wrote: OK, first off that red wire is connected to the camera voltage pad which is fine. However, that pad can either output 5V or LiPo voltage depending on a set of bridged pads on the other side of that board. The Air Unit needs a voltage in the range of 7.4V - 17.5V so if that camera voltage pad is only outputting 5V it won't be enough.

Flip over the board and make sure you have bridged the two pads for "Output battery voltage" so that LiPo voltage gets output on the camera voltage pad as shown on the image below. Make sure you don't connect a LiPo of more than 4S otherwise you will damage the Air Unit. You need to connect a 2S, 3S or 4S LiPo.

Also, no offence intended but you might want to work on your soldering technique because those soldering joints don't look great and there is a danger of either dry joints or unnecessary exposed wire which could touch another pad and cause a short. The last thing you want is to lose your quad due to a mid air power failure because of poor soldering.

Hi Snow, 

Just wanna give you an update, So I was able to finally get power to the air unit. Went through the whole Betaflight set up and configuration. 

Today I tested my quad and it flew fine until I crashed into mud. Brought it back home, cleaned it. Everything seems fine, the motors are turning and the system is running. 

However It is not arming, when I type status in CLI, the arming flag is only CLI and when I exit CLI it still wont arm 

Please HELP.

(05-Oct-2019, 08:29 PM)Seanalami Wrote: However It is not arming, when I type status in CLI, the arming flag is only CLI and when I exit CLI it still wont arm 

Can you please copy/paste the results of the CLI status command so we can see exactly what it says.

If you switch to the receiver tab in Betaflight Configurator; do any of the bars move if you wiggle the sticks?

(05-Oct-2019, 10:14 PM)SnowLeopardFPV Wrote: Can you please copy/paste the results of the CLI status command so we can see exactly what it says.

If you switch to the receiver tab in Betaflight Configurator; do any of the bars move if you wiggle the sticks?

# status
MCU F40X Clock=168MHz (PLLP-HSE), Vref=3.29V, Core temp=30degC
Stack size: 2048, Stack address: 0x1000fff0
Config size: 3018, Max available config: 16384
GYRO=ICM20602, ACC=ICM20602
System Uptime: 42 seconds, Current Time: 2019-10-05T22:13:34.074+00:00
CPU:8%, cycle time: 128, GYRO rate: 7812, RX rate: 33, System rate: 9
Voltage: 1525 * 0.01V (4S battery - OK)
I2C Errors: 0
Arming disable flags: RXLOSS CLI MSP

yes the 4 main channels move