Recent content by Falkon

The correct way to salvage a drone is to wash all parts individually with distilled water. After drying, water leaves no traces. Before turning it on, you should inspect all the boards to see if there are any signs of through corrosion. Usually only the battery dies.

Compass outside the steel screen? This is very inaccurate. Simply measure the field with the available Hall sensors. In addition there are small neodymium magnets, about 2 mm wide, such inside the DVD optics, if they have the poles marked with a marker, they are very good for identifying the...

The camera has its own IMU. It is located immediately under the cover, smeared with damper grease. Not calibrated. Just change the chip. Or the entire fee. The price difference is 20 times. Phantom 4 pro gimbal stabilizing by late

This is populism. Drones are used in war. But cars kill a million people a year in Europe alone. Has anyone seen or heard of the protests? About bills against cars? Such money is spinning in this business and the economy depends on it so much that the number of victims is nothing. Spies in the...

Oh thanks. The photo shows an older version. On mine, the diode is not placed diagonally, but has its own marked place - parallel to the fan, (marked "+" and "-"). I rang the tester all around, and this is logically a n-p-n transistor. But I was wrong. On the new board this is marked XOYX and...

After the crash, the SMD element was torn off and lost. Help identify the element. What are the numbers/letters on the element.

FFamiliarize yourself with the topic do not spread fakes. Magnets cannot be programmed. But from it can be pasted crookedly or weakly. I have changed ferrite magnets to neodymium magnets in all gimbal motors. If everything is assembled symmetrically and the north-south poles stand as they...

There is nothing to "calibrate" there. This nonsense has been copied and pasted for years. It's just eight poles of a magnet. And most of them are weak.

I made various experiments: changing the bell with a magnetic ring (usually recommended, no guarantee of success), replacing the Hall pickups (also 50/50), and lastly replacing the magnetic ring with neodymium magnets. I tried to paste 8 magnets 5x5 and 16 (double) 5x3.4 in the last picture, I...

I came to the same conclusions. I changed windings and magnets. Now they are neodymium. The wire from the windings should not be stretched. And I also put the washer on the shaft, there should not be any play. Neodymium magnets are easily ground with water on a diamond plate. On sale there is...

final analysis. My camera started to fail in exactly the same way as in the first post after several assemblies and disassemblies of the suspension. The suspicion of a cable defect turned out to be correct. The wiring diagram above is correct. There are unused contacts, this is normal. The gold...

My camera produces exactly the same symptoms. But it started gradually, in a warm room everything was fine, in the cold 50/50. After the next analysis of the suspension, the glitch became permanent. It is a pity that they never write about the result of replacing the flexible cable ... If anyone...

I'm "lucky". The bird attacked the drone and the battery flew out. Without voltage, salt water only acts on magnesium alloy if there is no paint. The battery was partially saved - the BMS board was replaced. MEMS chips are very resistant to shocks and vibrations. Therefore, they are protected by...

My phantom 4 pro was hit by a bird and it lay at the bottom of the sea for 1 hour. Did a quick rinse with fresh water. Later I washed all the parts in distilled water in an ultrasonic bath. This is very effective, but there was a mistake - the IMU crystal is destroyed. The pitch motor was moving...

А4 from 1 m. It is necessary that the focus was at infinity. Therefore, one test is not enough. Much depends on the aperture.