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24 votes
Accepted

Why is it bad to power up a drone without an antenna on the VTX?

Short answer: Yes, this is very much true. The VTX sends out radio-frequency (RF) energy through the antenna connector and pigtail, and if nothing (or the wrong thing) is connected at the other end, ...
FlashCactus's user avatar
  • 2,997
10 votes
Accepted

USB Webcam Parts for FPV?

These four wires are most likely a USB connection, red and black are power, and the other two are USB data. That means you can't use it neither with today's analog gear, like the VTX that you linked ...
FlashCactus's user avatar
  • 2,997
9 votes

Why is it bad to power up a drone without an antenna on the VTX?

Your VTX is a high-power RF transmitter. When operating with an antenna, the RF power of the transmitter is radiated out through the antenna. When the antenna is missing, the RF power is reflected ...
jpou's user avatar
  • 411
7 votes

Transmit video from drone to laptop via WiFi

You have a few options. One is to switch to a digital video system such as the fat shark bytefrost and do something like this to convert the video to a format compatible with your laptop. Essentially ...
user7379804's user avatar
5 votes

USB Webcam Parts for FPV?

This looks like a typical USB pin connection: +5V, Data- (white), Data+ (green) and Ground. This camera uses a digital signal. Sorry, but it can not be used with a analog video transmitter.
Bambusgott's user avatar
5 votes

2D/3D/fpv video glasses to use with external camera

Ordinary FPV cameras output an analogue PAL or NTSC TV signal, which you should be able to plug straight into a TV or goggles that are intended for watching TV. Some FPV goggles only have a receiver ...
Robin Bennett's user avatar
4 votes
Accepted

DJI Mavic Mini 2 can't record 2.7k 60fps after update

After a bit of research it seems like the problem is likely to be that you don't have the latest version of the DJI fly app. As per this forum thread you will need version 1.2.4 or later to see the ...
Hannes Hultergård's user avatar
4 votes

Transmit video from drone to laptop via WiFi

It is a totally different communications protocol than the 5.8GHz wifi your laptop supports but there are devices for under $30 that let you receive the video on an android phone or a windows laptop ...
nvuono's user avatar
  • 141
4 votes
Accepted

Is there an open source video processing/sensor based follow me technology?

You may want to take a look at dronecode.org, or their supported projects. Especially, PX4 (which was also mentioned in another answer): Getting Started with PX4 Autopilot guide PX4's Follow-Me ...
Dvir Berebi's user avatar
4 votes
Accepted

Transmit video from drone to laptop via WiFi

This is not possible, at least directly. Although the two technologies use the same frequency range, they are very different communication protocols. A possible solution would be to buy a compatible ...
Kralc's user avatar
  • 6,036
4 votes

How to control a gimbal remotely?

The easiest way would be to use the sliders or the rotary knobs on a reasonably advanced transmitter - although it might not feel natural and the pilot would be busy flying. Alternately you could plug ...
Robin Bennett's user avatar
3 votes

Implementing object detection in DJI Mavic 2 pro in real time

It is possible to do so. Check this API reference. They also provide this Windows SDK which can be of use to your needs. My experience is with an on-board SDK which I used to avoid objects using a ...
andrew's user avatar
  • 102
3 votes

Implementing object detection in DJI Mavic 2 pro in real time

That's a fascinating project, but I'm not sure it's possible on a DJI drone. The firmware is closed source and not designed for easy modification. I don't know if it's possible to replace the DJI ...
Robin Bennett's user avatar
3 votes

USB Webcam Parts for FPV?

Simpler and cheaper: No, it looks like a digital camera that needs to be connected over USB. This is not compatible with analog video transmitters. (If you want to save a bit of money look for some ...
radimklaska's user avatar
3 votes
Accepted

Keep quadcopter steady when taking a video

I'm going to assume that you don't need your videos to be stabilised realtime. In this case you need image stabilisation software. I'm not an expert in this field particularly, so I'll copy the most ...
Krish's user avatar
  • 762
3 votes
Accepted

How to control a gimbal remotely?

It all depends on what Flight Controller you are using and how you want to control the gimbal. Gimbals in your links use Storm32 firmware which is very versatile. It can be contolled using knobs on ...
jpou's user avatar
  • 411
2 votes

Is there an open source video processing/sensor based follow me technology?

The PX4 open-source flight stack has made some progress on various forms of computer vision. While not exactly turnkey, it’s an active area of development and you absolutely can buy hardware that ...
pion's user avatar
  • 211
1 vote
Accepted

Drone recommended for quality shooting but for non-experts

This is exactly the niche that DJI have dominated. Near professional level features but easy to learn. They're not priced as 'toys' but they're a lot cheaper than professional gear. I'm not an expert ...
Robin Bennett's user avatar
1 vote
Accepted

Video being indexed on SD card, but no duration time and no actual video recorded

Given that the drone camera is a cheap model from China, I think it's entirely possible that the camera modules is broken and could be outputting incorrectly terminated ...
ifconfig's user avatar
  • 5,998
1 vote

Keep quadcopter steady when taking a video

If this is the S49 you were posting about yesterday, I don’t think you will be able to stop this motion. To maintain your position, you constantly need to pitch and roll to fight changing wind ...
Drones and Whatnot's user avatar
1 vote

Keep quadcopter steady when taking a video

A hovering multirotor generates a lot of turbulance, which can result in a bumpy hover. Gimbals are great at smoothing out pitch and roll, but not vertical or lateral movements. One option could be ...
Kralc's user avatar
  • 6,036

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