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8 votes
Accepted

Holy Stone HS110D Drone PCB Wiring - What does the circled wire in the picture do?

That is almost certainly the antenna and one end is supposed to be free. This is increasingly likely as the square black chip next to it (labelled PAN159CY) is the wireless transciever (radio) - and I ...
Kralc's user avatar
  • 6,036
7 votes
Accepted

Can I power the VTX and FC from the same vbat pad on the ESC?

Yes, you can. Generally, you want to have your VTX and Camera on the same ground (in order to avoid video noise), so this approach will definitely work. There is continuity on pretty much every VBAT ...
Tehllama's user avatar
  • 836
7 votes
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How do you build and use a smoke stopper?

There are different ways, but a common one is to put a light bulb in series with the positive battery lead. This works because it will allow low currents through to power the flight controller, but ...
Drones and Whatnot's user avatar
5 votes
Accepted

What is the analog video input pinout on the DJI FPV goggle?

There is a project on thingiverse that shows the pin connector for the video input of the DJI goggles. It's a 4 pin 3.5mm jack with the following connections sleve - GND ring 2 - Video ring 1 - ...
Paul Kendall's user avatar
4 votes

How do you build and use a smoke stopper?

A small scale power supply with over-current protection also works well. The type to get are little cheap build yourself units, with a display that allows you to adjust output voltage and display ...
ctzsnooze's user avatar
  • 301
4 votes

How do you build and use a smoke stopper?

There are two problems to mitigate here - incorrect polarity and overcurrent - which have different solutions but can be used together. To protect against a battery being connected backwards you need ...
Kralc's user avatar
  • 6,036
4 votes
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Remap not yet existing uart

Serial ports are hardware based, and cannot be remapped. You can however remap software serial ports. Keep in mind not every pin supports softserial either, as an available hardware timer is required. ...
QuadMcFly's user avatar
  • 1,200
3 votes

Can I power the VTX and FC from the same vbat pad on the ESC?

According to documentation, the TBS Unify Pro HV Race can handle up to a 6S voltage (25.2V). You didn't specify your FC, but as long as it can handle up to 6S also, then there is no problem running ...
Jim's user avatar
  • 311
1 vote

Rewire drone motor

Brushless motors require a controller, because they need power switched between their three wires as they rotate. These are fairly complex devices because they detect the position of the rotor ...
Robin Bennett's user avatar
1 vote
Accepted

Can I use BAT and GND pads for wiring BetaFPV SMO4K?

Short answer Yes, go ahead. That pad is connected to VBAT and will provide power to the camera. Do not exceed 6S however that's irrelevant since none of the other components are rated above 6S. Long ...
Brydon Gibson's user avatar

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