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Pixhawk PX4 Sudden loss of lift 2 minutes after take-off

Hi Everyone. Finally my first post. I have been carefully trying to absorb all the information i could from this forum for the past three weeks, since i completed my first quad-copter build.

My set up is as follows

3s Lipo 25c 3600 maH battery - (http:

Started by james Migz

2 Replies

Help!!! Have sbus r12ds mini receiver.

Want to use on kk2 mini and apm 3.1. Where is info to set up as i am new to sbus configuration. Have radiolink at 10II. 12 cannel radio.

Started by Ken

0 Replies

cheerson cx 20 bigshark gps take off problem

hello everyone.. can anyone help e .. with this problem.. i just bought a cheerson cx 20 bigshark edition

i cannot take off in gps hold.. even if the gps is locked GREEN LED STEADY...the motors will not unlock..

but it i put sw2 in take off it will un

Started by starmike

9 Replies

HOW TO UPGRADE CHEERSON CX 20 BIG SHARK TO V2

hello, i tried the usb connection.. but only s8 assistant v1.2.1 the sees the quad.. and does not have the option to upgrade firmware..the other software flight tools does not see my quad

how can i upgrade my quad.. firmware

thank you

Started by starmike

5 Replies

Camera for crazyflie

Hi!

I am data scientist working mainly in python and I want to implement some computer vision to my crazyflie. The problem is that I dont have slight idea about electronics, physics etc. ( I dont know what Ghz is, how to solder cables etc. ) and I d

Started by Jakub Kubalski

2 Replies

Arducopter version 3.5.0 trouble getting local position data

I've had trouble getting local position data (North , East, Down) from my copter with the new 3.5.0 firmware. I was able to access it with the 3.4.6 firmware version just fine.

I'm using an optical flow and LIDAR if that makes any details different w

Started by Jonathan

1 Reply

Drone release and recovery mechanism

Hi

We are currently working on using drones for underground tunnel inspection and in need of method to help us release and recover drones.

Something that is similar to the payload release mechanism and can hold up to 4 kg and beyond.

Started by Francis Dominic

0 Replies

Need help! My first build crashed at test flight.

Hi,

I'm new to the drone world and just finished my first build and sadly enough it crashed at it's maiden voyage. At first everything seemed ok but just before I wanted to land it after the first test flight it suddenly started to pitch backwards a f

Started by Cor Bakker

0 Replies

Indoor navigation - Magnetometer anomalies

Greetings,

My team and I are working on indoor drone flights. Our build is

Frame: DJI S1000+

Flight Controller: Pixhawk v2.1 (not using an Edison)

Range finder: Lightware LIDAR SF10A

Optical flow sensor: PX4FLOW

Software: Mission Planner (Beta Version) a

Started by Jonathan

1 Reply

3d printer drone bodies and parts for YUNEEC

Smashed my TYPHOON Q500 into a 150ft Ballpark lite tower last weekend, hairline cracks everywhere, camera wiped out, gimbal in parts, landing gear in parts. I have to change camera to GoPro of some type. Any articles on changing camera over to GoPro

Started by Edwin Gudinas

0 Replies

need help. looking for the best setup for my needs.

hey guys

I'm in need of a uav that is capable of flying with a 1.5 kg load under it and can fly a preprogramed grid autonomously.

longer the flight time the better! I'm hoping for something that will fly for 30+ minutes.

hoping someone here can help ste

Started by pat fera

6 Replies

Waypoint following quadcopter using Arduino.

I am interested in making a quadcopter that will follow Lat/Long, hold altitude and follow me.

I am using an Arduino, MPU 6050 for flight controller with multiwii arduino code. I also recently purchased a GPS Neo-M8N. I am at a point where I can succe

Started by marc

1 Reply

Parrot DISCO with Ardupilot

Hi,

I just started working on Parrot DISCO.

I'm trying to install Ardupilot on Parrot DISCO.(http://ardupilot.org/plane/docs/airframe-disco.html)

However, there is one problem. It's rcS_mode_default file. This file should be put /etc/init.d/rcS_mode_def

Started by koji kno

2 Replies

Battery monitoring with APM Planner 2

Hi!

I'm setting up an Erle-Copter & running APM Planner 2 on Ubuntu 16.04. I want to monitor my battery voltage with APM Planner 2.

From the flight data screen, I can see the percentage of battery left, but as I don't know after what percentage I risk

Started by Lauren T.

2 Replies

Stop one motor faster than other motor in quadcopter

dear my friends

I have a quadcopter and when I disarm motors one of them stop faster than others. I think there is a mechanical problem with it. Am I right?

please help me. I truely appreciate it.

thank you so much.

Started by jhon

1 Reply

TopXGUn launch RTK equipment for industrial drone

Hello, everybody, I am Linda from TopXGun shanghai, recently TopXGun launch RTK equipment for industrial drone, detailed information for your refer.

Mobile Base Station: which is installed on ground
1.Powerful Data Link
The differential system adopts

Started by TopXgun Linda

0 Replies

Battery failsafe not triggering

Hi,

I am an experienced flyer but this has me stumped, maybe one of you guys can help. The battery failsafe will not trigger even though the aircraft battery voltage drops to 1V less then the failsafe voltage while in flight. FS is enabled and set to

Started by Alex

5 Replies

Compass heading not turning as much as plane

Hi

I have a problem with the external compass on my APM 2.6, mounted in a plane. I have been flying in Northern Europe without any problems, and have now brought my plane to Greenland. After having changed to the correct magnetic declination and calib

Started by Boas61

1 Reply

250 Quad with Pixfalcon help

Hi,

I converted my ZMR250 from a Naze 32 to a Pixfalcon. I got everything setup and vibrations looks fine.

I then did a auto-tune on the Roll axis and would like to know if it is normal for a small quad or should I be concerned with the low values.

Stab

Started by Henry Scheun

4 Replies

LM1117 3.3 outputs 0.65 V

I have a small circuit with an ESP8266, a DS18B20 (here is the ds18b20 datesheet) temperature sensor and a DHT22. I prototyped everything on a breadboard, and it worked fine. I then moved to soldering everything. My input Vcc is 5v, so I am using it

Started by nanawhite107

1 Reply

Discussions

All Discussions (33327)

Pixhawk PX4 Sudden loss of lift 2 minutes after take-off

Help!!! Have sbus r12ds mini receiver.

cheerson cx 20 bigshark gps take off problem

HOW TO UPGRADE CHEERSON CX 20 BIG SHARK TO V2

Camera for crazyflie

Arducopter version 3.5.0 trouble getting local position data

Drone release and recovery mechanism

Need help! My first build crashed at test flight.

Indoor navigation - Magnetometer anomalies

3d printer drone bodies and parts for YUNEEC

need help. looking for the best setup for my needs.

Waypoint following quadcopter using Arduino.

Parrot DISCO with Ardupilot

Battery monitoring with APM Planner 2

Stop one motor faster than other motor in quadcopter

TopXGUn launch RTK equipment for industrial drone

Battery failsafe not triggering

Compass heading not turning as much as plane

250 Quad with Pixfalcon help

LM1117 3.3 outputs 0.65 V

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